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3Com VCX V7111 User Manual

3Com VCX V7111 User Manual

Voip sip gateway
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3Com
VCX
V7111 VoIP SIP
®
™
Gateway User Manual
Version 4.4
http://www.3com.com
Part Number 900-0261-01
Published June 2005

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Summary of Contents for 3Com VCX V7111

  • Page 1 3Com V7111 VoIP SIP ® ™ Gateway User Manual Version 4.4 http://www.3com.com Part Number 900-0261-01 Published June 2005...
  • Page 2 LICENSE.TXT or !LICENSE.TXT. If you are unable to locate a copy, please contact 3Com and a copy will be provided to you.

  • Page 3: Table Of Contents

    Unpacking 27 Package Contents 27 Mounting the VCX V7111 28 Mounting the VCX V7111 on a Desktop 28 Installing the FXO and 2FXS, 4FXS, and 8FXS in a 19-inch Rack 29 Installing the 24FXS in a 19-inch Rack 29 Mounting the FXO and 2FXS, 4FXS, and 8FXS on a Wall 30...
  • Page 4 Configuring the Network Settings 109 Configuring the Channel Settings 119 Restoring and Backing Up the Gateway Configuration 128 Regional Settings 129 Changing the VCX V7111 Username and Password 131 Status and Diagnostics 131 Gateway Statistics 131 Monitoring the VCX V7111 Channels 134...
  • Page 5 Mapping PSTN Release Cause to SIP Response 166 Call Detail Report 166 Configuration Examples 168 Establishing a Call Between Two Gateways 168 SIP Call Flow 169 SIP Authentication Example 171 Remote IP Extension Between FXO and FXS 174 3Com VCX V7111 VoIP SIP Gateway User Manual...
  • Page 6 HAPTER IAGNOSTICS VCX V7111 Self-Testing 179 Rapid Self-Test Mode 179 Detailed Self-Test Mode 179 Troubleshooting the VCX V7111 via the RS-232 Port 180 Viewing the Gateway’s Information 180 Changing the Networking Parameters 180 Syslog Support 181 Syslog Servers 181 Operation 182...
  • Page 7 Replacing the Main Corporate Logo with an Image File 230 Replacing the Main Corporate Logo with a Text String 231 Replacing the Background Image File 232 Customizing the Product Name 233 Modifying ini File Parameters via the Web Interface’s AdminPage 233 3Com VCX V7111 VoIP SIP Gateway User Manual...
  • Page 8 Call Progress Tones Wizard 239 About the Call Progress Tones Wizard 239 Installation 240 Initial Settings 240 Recording Screen – Automatic Mode 240 Recording Screen – Manual Mode 243 The Call Progress Tones ini File 244 3Com VCX V7111 VoIP SIP Gateway User Manual...

  • Page 9: About This Guide

    Information contained in this document is believed to be accurate and reliable at the time of printing. However, because of on-going product improvements and revisions, 3Com cannot guarantee the accuracy of printed material after the Published Date nor can it accept responsibility for errors or omissions.

  • Page 10: Conventions

    VCX V7111 24FXS Any FXS Gateway: 2FXS, 4FXS, 8FXS, or 24FXS Any FXO Gateway: the 4FXO or 8FXO When referring to all these products generally, this document uses the term VCX V7111. 3Com VCX V7111 VoIP SIP Gateway User Manual...

  • Page 11: About Thi Guide

    Document title Document part number (usually found on the front page) Page number Your name and organization (optional) Example: 3Com VCX V7111 VoIP SIP Gateways User Manual Part Number 900-0261-01 Page 25 3Com VCX V7111 VoIP SIP Gateway User Manual...
  • Page 12 3Com VCX V7111 VoIP SIP Gateway User Manual...

  • Page 13: C 1: Vcx V7111 Sip G O

    These calls are routed over the existing network ensuring that voice traffic uses minimum bandwidth. The VCX V7111 SIP gateways are very compact devices that can be installed as a desk-top unit (see Mounting the VCX V7111 on a Desktop...
  • Page 14 The 4FXS and 4FXO support up to 4 analog telephone loop start FXS or FXO ports, shown Figure Figure 3 4FXS and 4FXO Gateway Front View The 2FXS supports up to 2 analog telephone loop start FXS ports, shown in Figure 3Com VCX V7111 VoIP SIP Gateway User Manual...
  • Page 15 Figure 4 2FXS Gateway Front View The layout diagram (see Figure 5), illustrates a typical FXO or 2FXS, 4FXS, or 8FXS VoIP application. 3Com VCX V7111 VoIP SIP Gateway User Manual...

  • Page 16: Sip Overview

    SIP Overview SIP (Session Initialization Protocol) is an application-layer control (signaling) protocol used on the VCX V7111 SIP for creating, modifying, and terminating sessions with one or more participants. These sessions can include Internet telephone calls, media announcements and conferences.

  • Page 17: Vcx V7111 Supported Features

    LEDs on the front and rear panels that provide information on the operating status of the media gateway and the network interface. Restart button on the Front panel that restarts the VCX V7111 gateway, and is also used to restore the VCX V7111 parameters to their factory default values.
  • Page 18 Works with Proxy or without Proxy, using an internal routing table. Fallback to internal routing table if Proxy is not responding. Supports up to four Proxy servers. If the primary Proxy fails, the VCX V7111 automatically switches to a redundant Proxy.
  • Page 19 Supports RFC 3327 – Adding “Path” to Supported header. Supports RFC 3581 – Symmetric Response Routing. For more updated information on the gateway’s supported features, see the latest VCX V7111 SIP VoIP Gateway Release Notes. 3Com VCX V7111 VoIP SIP Gateway User Manual...
  • Page 20 3Com VCX V7111 VoIP SIP Gateway User Manual...

  • Page 21: Chapter 2: Vcx V7111 Sip Gateway Physical Description

    ATEWAY HYSICAL ESCRIPTION This section provides detailed information on the VCX V7111 hardware and the location and functionality of the LEDs, buttons, and connectors on the front and rear panels. For detailed information on installing the VCX V7111 see Chapter 3: Installing the VCX V7111 on page 27.

  • Page 22: Vcx V7111 Front Panel Buttons

    VCX V7111 Front Panel Buttons Table 3 lists and describes the front panel buttons on the VCX V7111. Table 3 Front Panel Buttons on the VCX V7111 Type Function Comment Press the reset button with a paper clip or any other similar Reset the VCX V7111 pointed object, until the gateway is reset.

  • Page 23: Vcx V7111 Rear Panel

    VCX V7111 Rear Panel FXO and 2FXS, 4FXS, and 8FXS Rear Panel Figure 8 illustrates the rear panel layout of the 4FXS. For descriptions of the VCX V7111 rear panel components, see Table 5. For the functionality of the VCX V7111 rear panel LEDs,...

  • Page 24: 24Fxs Rear Panel

    Indicator LEDs on the 24FXS Rear Panel Label Type Color State Function Data Packet Status Green Transmitting RTP Packets Receiving RTP Packets Blank No traffic Cntrl Control Link Green Blinking Sending and receiving H.323 messages Blank No traffic 3Com VCX V7111 VoIP SIP Gateway User Manual...
  • Page 25 Green Device Powered and Self-test OK Orange Software Loading/Initialization Malfunction Eth 1 Ethernet Status Green Valid 10/100 Base-TX Ethernet connection Malfunction Eth 2 Ethernet Status Green Valid 10/100 Base-TX Ethernet connection Malfunction 3Com VCX V7111 VoIP SIP Gateway User Manual...
  • Page 26 3Com VCX V7111 VoIP SIP Gateway User Manual...

  • Page 27: Chapter 3: Installing The Vcx V7111

    Cabling the VCX V7111 on page 31). After connecting the VCX V7111 to the power source, the Ready and LAN LEDs on the front panel turn to green (after a self-testing period of about 1 minute). Any malfunction changes the Ready LED to red.

  • Page 28: Mounting The Vcx V7111

    2 short equal-length brackets and bracket-to-device screws for 24FXS 19-inch rack installation. Mounting the VCX V7111 The VCX V7111 can be mounted on a desktop or on a wall (only FXO and 2FXS, 4FXS, and 8FXS), or installed in a standard 19-inch rack. See Cabling the VCX V7111 on page cabling the VCX V7111.

  • Page 29: Installing The Fxo And 2Fxs, 4Fxs, And 8Fxs In A 19-Inch Rack

    The 24FXS with brackets for rack installation is shown in Figure To install the 24FXS in a 19-inch rack, follow these steps: Remove the two screws on one side of the device nearest the front panel. 3Com VCX V7111 VoIP SIP Gateway User Manual...

  • Page 30: Mounting The Fxo And 2Fxs, 4Fxs, And 8Fxs On A Wall

    Position the device on the wall with the base of the device next to the wall. Use four screws to attach the device to the wall. These screws are not provided with the device. 3Com VCX V7111 VoIP SIP Gateway User Manual...

  • Page 31: Cabling The Vcx V7111

    Cable Cabling Procedure RJ-45 Ethernet When initializing (connecting the VCX V7111 to the network for the first time) use a cable standard Ethernet cable to connect the network interface on your computer to a port on a network hub / switch. Use a second standard Ethernet cable to connect the MP-1xx to another port on the same network hub / switch.
  • Page 32 POTS phones into the RJ-11 sockets on the front of an MDF Adaptor Block as shown in Figure 17 on page 33. RS-232 serial For detailed information on connecting the VCX V7111 RS-232 port to your PC, see cable Connecting the RS-232 Port to Your PC on page 35. Protective...
  • Page 33 ANALOG LINES 1-20 RS-232 Data Cntrl Ready 1 2 3 4 5 Rear View CONFIG 100 - 250V~ Eth 1 Eth 2 50 - 60Hz 2A Grounding Strap 50-pin female Telco connector RS-232 Cable 3Com VCX V7111 VoIP SIP Gateway User Manual...
  • Page 34 Pin Allocation in the 50-pin Telco Connector Phone Channel Connector Pins Phone Channel Connector Pins 1/26 13/38 2/27 14/39 3/28 15/40 4/29 16/41 5/30 17/42 6/31 18/43 7/32 19/44 8/33 20/45 9/34 21/46 10/35 22/47 3Com VCX V7111 VoIP SIP Gateway User Manual...

  • Page 35: Connecting The Rs-232 Port To Your Pc

    Users can therefore use the Lifeline phone even when the VCX V7111 is not powered on or not connected to the network. With the 8FXS and 4FXS the Lifeline connection is provided on port #4 (see Figure 21).
  • Page 36 Life Line Tip Ring Life Line Ring To cable the VCX V7111/FXS Lifeline phone, follow these steps: Connect the Lifeline Splitter to port # 4 (on the 4FXS or 8FXS) or to port # 2 (on the 2FXS). Connect the Lifeline phone to Port A on the Lifeline Splitter.
  • Page 37 Item # Component Description B: To PSTN wall port. Phone to Port 1. Lifeline to Port 4. PSTN to Splitter (B). Phone to Port 1. Lifeline phone to Splitter (A). Lifeline phone. 3Com VCX V7111 VoIP SIP Gateway User Manual...
  • Page 38 3Com VCX V7111 VoIP SIP Gateway User Manual...

  • Page 39: Chapter 4: Getting Started

    Restoring Networking Parameters to their Initial State on page describes how to set up the VCX V7111 with basic parameters using a standard Web browser (such as Microsoft Internet Explorer). For detailed information on how to fully configure the gateway see the Web Interface,...

  • Page 40: Assigning An Ip Address Using Bootp

    Ready and LAN LEDs on the front panel are lit green. Record and retain the IP address and subnet mask you assign the VCX V7111. Do the same when defining new username or password. If the Embedded Web Server is unavailable (for example, if you’ve lost your username and password), use the BootP/TFTP configuration...

  • Page 41: Configuring The Vcx V7111 Basic Parameters

    Note that this process also restores the VCX V7111 parameters to their factory settings, therefore you must load your previously backed-up ini file, or the default ini file (received with the software kit) to set them to their correct values.
  • Page 42 Note that coders higher on the list take precedence over coders lower on the list. The preferred coder is the coder that the VCX V7111 uses as a first choice for all connections. If the far end gateway does not use this coder, the VCX V7111 negotiates with the far end gateway to select a coder that both sides can use.

  • Page 43: Chapter 5: Configuring The Vcx V7111

    V7111 Configuration Concepts Customers can use the VCX V7111 in a wide variety of applications, enabled by its parameters and configuration files (e.g., Call Progress Tones (CPT), etc.). The parameters can be configured and configuration files can be loaded using: A standard Web Browser (described and explained in this section).

  • Page 44: Password Control

    (such as Internet hacker attacks), particularly to Users without a firewall. For information on the ini file see Chapter 6: ini File Configuration of the VCX V7111 on page 147. Limiting the Embedded Web Server to Read-Only Mode Users can limit the Web Interface to read-only mode by changing the ini file parameter ‘DisableWebConfig’...

  • Page 45: Accessing The Embedded Web Server

    Open a standard Web-browsing application such as Microsoft™ Internet Explorer™ (Version 6.0 and higher) or Netscape™ Navigator™ (Version 7.0 and higher). In the URL field, specify the IP address of the VCX V7111 (e.g., http://10.1.10.10); the Embedded Web Server’s ‘Enter Network Password’ screen appears, shown in Figure 23.

  • Page 46: Getting Acquainted With The Web Interface

    Main action frame - the main area of the screen in which information is viewed and configured. Corporate logo – 3Com’s corporate logo. For information on how to remove this logo Appendix E: Customizing the VCX V7111 Web Interface on page 229.

  • Page 47: Saving Changes

    Click the Save Configuration button in the middle of the screen; a confirmation message appears when the save is complete. Note: When you reset the VCX V7111 from the Web Interface, you can choose to save the configuration to flash memory.

  • Page 48: Protocol Management

    To configure the general parameters under Protocol Definition, follow these steps: Open the ‘General Parameters’ screen (Protocol Management menu > Protocol Definition submenu > General Parameters option); the ‘General Parameters’ screen is displayed. 3Com VCX V7111 VoIP SIP Gateway User Manual...
  • Page 49 [2]. Note 1: The Supported and Required headers contain the “100rel” parameter. Note 2: VCX V7111 sends PRACK message if 180/183 response is received with “100rel” in the Supported or the Required headers. 3Com VCX V7111 VoIP SIP Gateway User Manual...
  • Page 50 Defines the time (in seconds) that is used in the Min-SE header field. This field defines [MINSE] the minimum time that the user agent supports for session refresh. The valid range is 10 to 100000. The default value is 90. 3Com VCX V7111 VoIP SIP Gateway User Manual...
  • Page 51 [UseSourceNumberAsDispla yName] Applicable to Tel IP calls. If enabled and calling party name is not defined (CallerDisplayInfoX = <name> is not specified per gateway’s x port), the calling number is used instead. 3Com VCX V7111 VoIP SIP Gateway User Manual...
  • Page 52 SipT1Rtx and is multiplied by two until SipT2Rtx. SIP Maximum Rtx Number of UDP retransmissions of SIP messages. The range is 1 to 7. [SIPMaxRtx] The default value is 7. 3Com VCX V7111 VoIP SIP Gateway User Manual...
  • Page 53 Open the ‘Proxy & Registration’ parameters screen (Protocol Management menu > Protocol Definition submenu > Proxy & Registration option); the ‘Proxy & Registration’ parameters screen is displayed. Figure 26 Proxy & Registration Parameters Screen 3Com VCX V7111 VoIP SIP Gateway User Manual...
  • Page 54 [GWRegistrationName] If ‘GWRegistrationName’ isn’t specified (default), the ’Username’ parameter is used instead. Note: If ‘“AuthenticationMode=0’, all the gateway’s endpoints are registered with a user name that equals to the endpoint’s phone number. 3Com VCX V7111 VoIP SIP Gateway User Manual...
  • Page 55 Note: To use Redundancy Mode, enable Keep-alive with Proxy option (Enable Proxy Keep Alive = Yes). Is Proxy Trusted This parameter isn’t applicable and must always be set to ‘Yes’ [1]. [IsTrustedProxy] The parameter ‘AssertedIdMode’ should be used instead. 3Com VCX V7111 VoIP SIP Gateway User Manual...
  • Page 56 [IsFallbackUsed] scanning for a Proxy. When the gateway finds an active Proxy, it switches from internal routing back to Proxy routing. Note: To enable the redundant Proxies mechanism set ‘EnableProxyKeepAlive’ to 1. 3Com VCX V7111 VoIP SIP Gateway User Manual...
  • Page 57 Usually Authentication on a per endpoint basis is used for FXS gateways, in which each endpoint registers (and authenticates) separately with its own username and password. Single Registration and Authentication (Authentication Mode=1) is usually defined for FXO gateways. 3Com VCX V7111 VoIP SIP Gateway User Manual...
  • Page 58 To save the changes so they are available after a power fail see Save Configuration page 145. Only the ptime of the first coder in the defined coder list is declared in Invite/200 OK SDP, even if multiple coders are defined. 3Com VCX V7111 VoIP SIP Gateway User Manual...
  • Page 59 To configure the dialing parameters, follow these steps: Open the ‘DTMF & Dialing’ screen (Protocol Management menu > Protocol Definition submenu > DTMF & Dialing option); the ‘DTMF & Dialing’ parameters screen is displayed. 3Com VCX V7111 VoIP SIP Gateway User Manual...
  • Page 60 DTMF format’. Note: When out of band DTMF transfer is used (Enable DTMF = Yes), the parameter ‘DTMF Transport Type’ is automatically set to 0 (erase the DTMF digits from the RTP stream). 3Com VCX V7111 VoIP SIP Gateway User Manual...
  • Page 61 [0] = Don’t declare RFC 2833 Telephony-event parameter in SDP [3] = Declare RFC 2833 Telephony-event parameter in SDP (default) The VCX V7111 is designed to always be receptive to RFC 2833 DTMF relay packets. Therefore, it is always correct to include the “Telephony-event” parameter as a default in the SDP.
  • Page 62 Defines the telephone number that the gateway uses if the parameters ‘TrunkGroup_x’ or [DefaultNumber] ’ChannelList‘ don’t include a phone number. The parameter is used as a starting number for the list of channels comprising all hunt groups in the gateway. 3Com VCX V7111 VoIP SIP Gateway User Manual...

  • Page 63: Configuring The Advanced Parameters

    To configure the general parameters under Advanced Parameters, follow these steps: Open the ‘General Parameters’ screen (Protocol Management menu > Advanced Parameters submenu > General Parameters option); the ‘General Parameters’ screen is displayed. Figure 29 Advanced Parameters, General Parameters Screen 3Com VCX V7111 VoIP SIP Gateway User Manual...
  • Page 64 DTMF digits using the method chosen (in-band, out-of-band). Note: The called number can include several ‘p’ characters (1.5 seconds pause). For example, the called number can be as follows: pp699, p9p300. 3Com VCX V7111 VoIP SIP Gateway User Manual...
  • Page 65 The digit delivery feature enables sending of DTMF digits to the gateway’s port after the line is offhooked (FXS) or seized (FXO). For IP Tel calls, after the line is offhooked / seized, the VCX V7111 plays the DTMF digits (of the called number) towards the phone line.
  • Page 66 The default value is a null string that causes the CDR messages to be sent with all Syslog messages. Note: The CDR messages are sent to UDP port 514 (default Syslog port). 3Com VCX V7111 VoIP SIP Gateway User Manual...
  • Page 67 The default for FXO gateways is 1; The default for FXS gateways is 0. Enable Busy Out [0] = ‘Busy out’ feature is not used (default). [1] = The VCX V7111/FXS gateway plays a reorder tone when the phone is [EnableBusyOut] offhooked and one of the following occurs: There is a network problem.
  • Page 68 To configure the supplementary services’ parameters, follow these steps: Open the ‘Supplementary Services’ screen (Protocol Management menu > Advanced Parameters submenu > Supplementary Services option); the ‘Supplementary Services’ screen is displayed. 3Com VCX V7111 VoIP SIP Gateway User Manual...
  • Page 69 Determines the format of the hold request. [HoldFormat] 0.0.0.0 [0] = The connection IP address in SDP is 0.0.0.0 (default). Send Only [1] = The last attribute of the SDP contains the following “a=sendonly”. 3Com VCX V7111 VoIP SIP Gateway User Manual...
  • Page 70 The valid range is 0 to 100. The default time is 0 seconds. Indication] Duration (in msec) of waiting indications that are played to the receiving side of the call Waiting Beep Duration] (FXS only) for Call Waiting. WaitingBeepDuration The default value is 300. 3Com VCX V7111 VoIP SIP Gateway User Manual...
  • Page 71 [0] = Disabled (default). Enable [1] = MWI service is enabled. This parameter is applicable only to FXS gateways. Note: The VCX V7111 only supports reception of MWI. For detailed information on MWI, see Message Waiting Indication on page 164.
  • Page 72 ‘Stutter tone’. Both tones are defined in the CPT file. Note: This parameter is applicable only to FXS gateways. For detailed information on Message Waiting Indication (MWI), see Message Waiting Indication on page 164. 3Com VCX V7111 VoIP SIP Gateway User Manual...
  • Page 73 Save Configuration page 145. The method used by the gateway to collect dialed numbers is identical to the method used during a regular call (i.e., max digits, interdigit timeout, digit map, etc.). 3Com VCX V7111 VoIP SIP Gateway User Manual...
  • Page 74 (terminate the number with #); a confirmation tone is heard. Deactivate Keypad sequence that deactivates the delayed hotline option. [KeyHotLineDeact] After the sequence is pressed a confirmation tone is heard. 3Com VCX V7111 VoIP SIP Gateway User Manual...

  • Page 75: Configuring The Number Manipulation Tables

    Open the Number Manipulation screen you want to configure (Protocol Management menu > Manipulation Tables submenu); the relevant Manipulation table screen is displayed. Figure 32 shows the ‘Source Phone Number Manipulation Table for Tel IP calls’. 3Com VCX V7111 VoIP SIP Gateway User Manual...
  • Page 76 Note that number manipulation can be performed using a combination of each of the above criteria, or using each criterion independently. Note: For available notations that represent multiple numbers see Dialing Plan Notation on page 79. 3Com VCX V7111 VoIP SIP Gateway User Manual...
  • Page 77 Note: If ‘Presentation’ is set to ‘Restricted’ and ‘Asserted Identity Mode’ is set to ‘P- Asserted’, the From header in Invite message is: From: “anonymous” <sip: anonymous@anonymous.invalid> and “privacy: id” header is included in the Invite message. 3Com VCX V7111 VoIP SIP Gateway User Manual...
  • Page 78 Parameters can be skipped by using the sign "$$", for example: NumberMapIP2Tel =01,2,972,$$,$$,$$,034,$$,10.13.77.8 NumberMapIP2Tel =03,(2),667,$$,$$,$$,22 Note: The Source IP address can include the “x” wildcard to represent single digits. For example: 10.8.8.xx represents all the addresses between 10.8.8.10 to 10.8.8.99. 3Com VCX V7111 VoIP SIP Gateway User Manual...
  • Page 79 When entering a number in the ‘Prefix’ column, you can create an entry that represents multiple numbers using the following notation: [n-m] represents a range of numbers [n,m] represents multiple numbers. Note that this notation only supports single digit numbers. 3Com VCX V7111 VoIP SIP Gateway User Manual...

  • Page 80: Configuring The Routing Tables

    Configure the general parameters under ‘Routing Tables’ according to Table Click the Submit button to save your changes. To save the changes so they are available after a power fail see Save Configuration page 145. 3Com VCX V7111 VoIP SIP Gateway User Manual...
  • Page 81 [1] = Enable the add port as prefix service. If enabled, then the gateway’s port number (single digit in the range 1 to 8 in VCX V7111, two digits in the range 01 to 24 in 24FXS) is added as a prefix to the destination phone number for Tel IP calls.
  • Page 82 ‘No Response’ implicit release reason. If this reason is included in the ‘Reasons for Alternative Routing’ table, the gateway immediately initiates a call to the redundant destination using the next matched entry in the ‘Tel to IP Routing’ table. Note that if a domain 3Com VCX V7111 VoIP SIP Gateway User Manual...
  • Page 83 Source Phone Prefix Each entry in the Source Phone Prefix fields represents a calling telephone number prefix. The prefix can be 1 to 19 digits long. An asterisk (*) represents all numbers. 3Com VCX V7111 VoIP SIP Gateway User Manual...
  • Page 84 Hunt Group Settings table (see Configuring the Hunt Group Settings on page 97) or according to the global parameter 3Com VCX V7111 VoIP SIP Gateway User Manual...
  • Page 85 Configure the IP to Hunt Group Routing table according to Table Click the Submit button to save your changes. To save the changes so they are available after a power fail see Save Configuration page 145. 3Com VCX V7111 VoIP SIP Gateway User Manual...
  • Page 86 10.8.8.xx represents all IP addresses between 10.8.8.10 to 10.8.8.99. Note 4: For available notations that represent multiple numbers see Dialing Plan Notation on page 79. Note 5: This parameter can appear up to 24 times. 3Com VCX V7111 VoIP SIP Gateway User Manual...
  • Page 87 Parameter Name in ini File Parameter Format DNS2IP DNS2IP = <Hostname>, <first IP address>, <second IP address> For example: DNS2IP = Domainname.com, 10.8.21.4, 10.13.2.95 Note: This parameter can appear up to 10 times. 3Com VCX V7111 VoIP SIP Gateway User Manual...
  • Page 88 Reasons for Alternative Routing Screen In the ‘IP to Tel Reasons’ table, from the drop-down list select up to 4 different call failure reasons that invoke an alternative IP to Tel routing. 3Com VCX V7111 VoIP SIP Gateway User Manual...

  • Page 89: Configuring The Profile Definitions

    Note: This parameter can appear up to 4 times. Configuring the Profile Definitions Utilizing the Profiles feature, the VCX V7111 provides high-level adaptation when connected to a variety of equipment (from both Tel and IP sides) and protocols, each of which require a different system behavior.
  • Page 90 To save the changes so they are available after a power fail see Save Configuration page 145. In the current version, only the ptime of the first coder is sent in the SDP section of the Invite message. 3Com VCX V7111 VoIP SIP Gateway User Manual...
  • Page 91 Use the Tel Profile Settings screen to define up to four different Tel Profiles. These Profiles are used in the ‘Endpoint Phone Number’ table to associate different Profiles to gateway’s endpoints, thereby applying different behavior to different VCX V7111 ports. To configure the Tel Profile settings, follow these steps: Open the ‘Tel Profile Settings’...
  • Page 92 Profile. You can select the gateway’s default coders (see Coders on page 58) or one of the coder groups you defined in the Coder Group Settings screen (see Coder Group Settings on page 89). 3Com VCX V7111 VoIP SIP Gateway User Manual...
  • Page 93 To configure the IP Profile settings, follow these steps: Open the ‘IP Profile Settings’ screen (Protocol Management menu > Profile Definitions submenu > IP Profile Settings option); the ‘IP Profile Settings’ screen is displayed. 3Com VCX V7111 VoIP SIP Gateway User Manual...
  • Page 94 Repeat steps 2 to 6 for the second to fifth IP Profiles (optional). Click the Submit button to save your changes. To save the changes so they are available after a power fail see Save Configuration page 145. 3Com VCX V7111 VoIP SIP Gateway User Manual...

  • Page 95: Configuring The Endpoint Phone Numbers

    / unregister to a Proxy / Registrar. To save the changes so they are available after a power fail see Save Configuration page 145. 3Com VCX V7111 VoIP SIP Gateway User Manual...
  • Page 96 Note 4: This parameter can appear up to 8 times for 8FXS Gateways and up to 24 times for 24FXS Gateways. Note 5: An optional Tel ProfileID (1 to 5) can be applied to each group of channels. 3Com VCX V7111 VoIP SIP Gateway User Manual...

  • Page 97: Configuring The Hunt Group Settings

    Parameter Description ChannelList List of phone numbers for VCX V7111 channels a, b, c, d Note: TrunkGroup_x a = first channel. parameter can be b = number of channels starting from “a”. used instead. c = the phone number of the first channel.
  • Page 98 When the gateway reaches the lowest channel number in the hunt group, it selects the highest channel number in the hunt group and then start descending again. 3Com VCX V7111 VoIP SIP Gateway User Manual...

  • Page 99: Configuring The Endpoint Settings

    The Endpoint Settings screens enable you to configure port-specific parameters. Authentication The Authentication Table (normally used with FXS gateways) defines a username and password combination for authentication for each VCX V7111 port. The ‘Authentication Mode’ parameter (described in Table 15 on page 54) determines if authentication is performed per port or for the entire gateway.
  • Page 100 To configure the Automatic Dialing table, follow these steps: Open the ‘Automatic Dialing’ screen (Protocol Management menu > Endpoint Settings submenu > Automatic Dialing option); the ‘Automatic Dialing’ screen is displayed. 3Com VCX V7111 VoIP SIP Gateway User Manual...
  • Page 101 Note 2: Define this parameter for each gateway port you want to use for Automatic Dialing. Note 3: This parameter can appear up to 8 times for 8FXS gateways and up to 24 times for 24FXS gateways. 3Com VCX V7111 VoIP SIP Gateway User Manual...
  • Page 102 To maintain backward compatibility, when the strings “Private” or “Anonymous” are set in the Caller ID/Name field, the Caller ID is restricted and the value in the Presentation field is ignored. Repeat steps 2 and 3 for each VoIP gateway port. 3Com VCX V7111 VoIP SIP Gateway User Manual...
  • Page 103 Configure the Call Forward parameters for each port according to the table below. Click the Submit button to save your changes. To save the changes so they are available after a power fail see Save Configuration page 145. 3Com VCX V7111 VoIP SIP Gateway User Manual...
  • Page 104 To configure the Caller ID Permission Table, follow these steps: Open the ‘Caller ID Permission’ screen (Protocol Management menu > Endpoint Settings > Caller ID Permission option); the ‘Caller ID Permission ’ screen is displayed. 3Com VCX V7111 VoIP SIP Gateway User Manual...

  • Page 105: Configuring The Fxo Parameters

    Use this screen to configure the gateway’s specific FXO parameters. To configure the FXO parameters, follow these steps: Open the ‘FXO Settings’ screen (Protocol Management menu > FXO); the ‘FXO Settings’ screen is displayed. 3Com VCX V7111 VoIP SIP Gateway User Manual...
  • Page 106 [IsWaitForDialTone] [1] = Wait for dial tone (default). Used for IP VCX V7111/FXO gateways, when ‘One Stage Dialing’ is enabled. If “wait for dial tone” is enabled, the FXO gateway dials the phone number (to the PSTN/PBX line) only after it detects a dial tone.
  • Page 107 Delay (in milliseconds) between the time the line is seized and dialing is begun. [msec] The default is 1000 msec. [FXOWaitForDialTime] Note: Applicable only to VCX V7111/FXO for single stage dialing, when waiting for dial tone is disabled. Ring Detection Timeout [sec] Note: Applicable only to VCX V7111/FXO gateways for Tel IP calls.

  • Page 108: Protocol Management Ini File Parameters

    Note: Usually this mode is not recommended. DisconnectOnBusyTone 0 = Call isn’t released (FXO gateway). 1 = Call is released (on FXO gateways) if busy or reorder (fast busy) tones are detected on the gateway’s FXO port (default). 3Com VCX V7111 VoIP SIP Gateway User Manual...

  • Page 109: Advanced Configuration

    RTP settings. Ethernet Ports Information (read-only). To configure the Network Settings parameters, follow these steps: Open the ‘Network Settings’ screen (Advanced Configuration menu > Network Settings); the ‘Network Settings’ screen is displayed. 3Com VCX V7111 VoIP SIP Gateway User Manual...
  • Page 110 To save the changes so they are available after a power fail see Save Configuration page 145. Those parameters contained within square brackets are the names used to configure the parameters via the ini file. 3Com VCX V7111 VoIP SIP Gateway User Manual...
  • Page 111 DHCPEnable reverts to ‘0’). Note: that throughout the DHCP procedure the BootP/TFTP application must be deactivated. Otherwise, the VCX V7111 receives a response from the BootP server instead of the DHCP server. Note: For additional information on DHCP see DHCP Supporton page 185.
  • Page 112 Note 2: Logs can also be sent to the RS-232 serial port (see Troubleshooting the VCX V7111 via the RS-232 Port on page 180). Note 3: To configure the Syslog logging levels use the parameter ‘Debug Level’. 3Com VCX V7111 VoIP SIP Gateway User Manual...
  • Page 113 SNMP Managers Table label; the SNMP Managers Table screen is displayed (see Figure 50). Configure the SNMP managers parameters according to Table 42 below. Click the Submit button to save your changes. 3Com VCX V7111 VoIP SIP Gateway User Manual...
  • Page 114 Trap Enable Up to five parameters, each determines the activation/deactivation of sending [SNMPManagerTrapSendingEnable_x] traps to the corresponding SNMP Manager. Disable [0] = Sending is disabled Enable [1] = Sending is enabled (default) 3Com VCX V7111 VoIP SIP Gateway User Manual...
  • Page 115 4 = Auto-Negotiate (Default). Note: Auto-Negotiate falls back to half-duplex mode (HD) when the opposite port is not in auto-negotiate, but the speed (10 Base-T, 100 Base -TX) in this mode is always configured correctly. 3Com VCX V7111 VoIP SIP Gateway User Manual...
  • Page 116 6 = 40 BootP retries, 120 second. 7 = 100 BootP retries, 300 second. 15 = BootP retries indefinitely. Note: This parameter only takes effect from the next reset of the device. 3Com VCX V7111 VoIP SIP Gateway User Manual...
  • Page 117 Vendor Specific Information Field on page 186. The BootP/TFTP configuration utility displays this information in the ‘Client Info’ column (see Figure 91 on page 211). Note: This option is not available on DHCP servers. 3Com VCX V7111 VoIP SIP Gateway User Manual...
  • Page 118 Using multiple router support the media gateway can utilize these router messages to change its next hop and establish the best path. Note: Multiple Routers support is an integral feature that doesn’t require configuration. 3Com VCX V7111 VoIP SIP Gateway User Manual...

  • Page 119: Configuring The Channel Settings

    The Channels Settings screen enables you to set the VoIP gateway channel parameters, such as Input and Output voice gain, Jitter buffer characteristics, Modem, Fax and DTMF transport modes. These parameters are applied to all VCX V7111 channels. Note that several Channels Settings parameters can be configured per call using profiles...
  • Page 120 (Tel IP) signal. You can enter a value from -32 to 31 dB. The default value is 0 dB. Note: This parameter is intended for advanced users. Changing it affects other gateway functionalities. 3Com VCX V7111 VoIP SIP Gateway User Manual...
  • Page 121 Answer Detector Silence Time N/A. [AnswerDetectorSilenceTime] Answer Detector Redirection N/A. [AnswerDetectorRedirection] Answer Detector Sensitivity Determines the Answer Detector sensitivity. [AnswerDetectorSensitivity] The range is 0 (most sensitive) to 2 (least sensitive). The default is 0. 3Com VCX V7111 VoIP SIP Gateway User Manual...
  • Page 122 Caller ID signals. Bellcore [0] (default) ETSI DTMF ETSI [16] Denmark [17] India [18] Note: The Caller ID signals are generated/detected between the first and the second rings. V.21 Modem Transport Type N/A. [V21ModemTransportType] 3Com VCX V7111 VoIP SIP Gateway User Manual...
  • Page 123 Coder the gateway uses when performing fax/modem bypass. Usually, high-bit- [FaxModemBypassCoderType] rate coders such as G.711 should be used. You can select: G711 A-law 64 [0] (default) G711 µ-law [1] G726 32 [4] G726 40 [11] 3Com VCX V7111 VoIP SIP Gateway User Manual...
  • Page 124 VCX V7111 gateways to start the T.38 fax session when the CNG tone is detected by the originating side. However, this mode is not recommended. Figure 53 Channel Settings, RTP Parameters 3Com VCX V7111 VoIP SIP Gateway User Manual...
  • Page 125 Ignore analog signals [0] = hookflash isn’t transferred to the remote side [AnalogSignalTransportType] (default). RFC 2833 analog signal relay [1] = hookflash is transferred via RFC 2833. Figure 54 Channel Settings, Miscellaneous Parameters 3Com VCX V7111 VoIP SIP Gateway User Manual...
  • Page 126 Max. Flash-Hook Detection Period 300 to 1500 (default 400) hookflash time in msec. The parameter is used for [msec] hookflash detection in VCX V7111/FXS and for hookflash generation in VCX [FlashHookPeriod] V7111/FXO gateways. Note: For FXO gateways, a constant of 90 msec must be added to the required hookflash period.
  • Page 127 The jitter buffer collects voice packets, stores them and sends them to the voice processor in evenly spaced intervals. The VCX V7111 uses a dynamic jitter buffer that can be configured using two parameters: Minimum delay, ‘DJBufMinDelay’ (0 msec to 150 msec). Defines the starting jitter capacity of the buffer.

  • Page 128: Restoring And Backing Up The Gateway Configuration

    VoIP gateway information stored on your computer. To restore or back up the ini file: Open the ‘Configuration File’ screen (Advanced Configuration menu > Configuration File); the ‘Configuration File’ screen is displayed. 3Com VCX V7111 VoIP SIP Gateway User Manual...

  • Page 129: Regional Settings

    Call Progress Tones, coefficient (different files for VCX V7111/FXS and VCX V7111/FXO gateways) and Voice Prompts (currently not applicable to VCX V7111 gateways). For detailed information on the configuration files see Chapter 6: ini File Configuration of the VCX V7111 on page 147.
  • Page 130 Repeat steps 2 to 5 for each file you want to load. Saving a configuration file to flash memory may disrupt traffic on the VCX V7111. To avoid this, disable all traffic on the device before saving to flash memory.

  • Page 131: Changing The Vcx V7111 Username And Password

    Save Configuration on page 145. Changing the VCX V7111 Username and Password To prevent unauthorized access to the VCX V7111, it is recommended that you change the username and password (both are case-sensitive) that are used to access the Web Interface.
  • Page 132 = Remote side didn’t respond for a short period. Fail = Remote side doesn’t respond. Init = Connectivity queries not started (e.g., IP address not resolved). Disable = The connectivity option is disabled (‘AltRoutingTel2IPMode’ equals 0 or 2). 3Com VCX V7111 VoIP SIP Gateway User Manual...
  • Page 133 Open the Call Counters screen you want to view (Status & Diagnostics menu > Gateway Statistics submenu); the relevant Call Counters screen is displayed. Figure 59 shows the ‘Tel IP Call Counters’ screen. Figure 59 Tel IP Call Counters Screen 3Com VCX V7111 VoIP SIP Gateway User Manual...

  • Page 134: Monitoring The Vcx V7111 Channels

    Monitoring the VCX V7111 Channels The Channel Status screen provides real time monitoring on the current channels status. To monitor the status of the VCX V7111 channels follow this step: Open the ‘Channel Status’ screen (Status & Diagnostics menu > Channel Status); the ‘Channel Status’...

  • Page 135: Activating The Internal Syslog Viewer

    Syslog logging level, in the range 0 to 5, where 5 is the highest level. Open the ‘Message Log’ screen (Status & Diagnostics menu > Message Log); the ‘Message Log’ screen is displayed. 3Com VCX V7111 VoIP SIP Gateway User Manual...

  • Page 136: System Information

    Do not keep the ‘Message Log’ screen minimized for a prolonged period as a prolonged session may cause the VCX V7111 to overload. As long as the screen is open (even if minimized), a session is in progress and messages are sent. Closing the screen (and accessing another) stops the messages and terminates the session.

  • Page 137: Software Update

    VCX V7111 is reset. Click the Reset button on the main menu bar; the Reset screen is displayed. Select the Burn option and click the Reset button. The VCX V7111 is reset and the auxiliary files you chose to delete are discarded.
  • Page 138 Figure 64 Start Software Upgrade Screen At this point, the process can be canceled with no consequence to the VCX V7111 (click the Cancel button). If you continue the process (by clicking the Start Software Upgrade button, the process must be followed through and completed with a VCX V7111 reset at the end. If you click the Cancel button in any of the subsequent screens, the VCX V7111 is automatically reset with the configuration that was previously burned in flash memory.
  • Page 139 Load a cmp File Screen Click the Browse button, navigate to the cmp file and click the button Send File; the cmp file is loaded to the VCX V7111 and you’re notified as to a successful loading (see Figure 66).
  • Page 140 You can now choose to either: Click Reset; the VCX V7111 resets, utilizing the new cmp you loaded and utilizing the current configuration files. Click Cancel; the VCX V7111 resets utilizing the cmp, ini and all other configuration files that were previously stored in flash memory. Note that these are NOT the files you loaded in the previous Wizard steps.
  • Page 141 Click Reset; the VCX V7111 resets, utilizing the new cmp and ini file you loaded up to now as well as utilizing the other configuration files. Click Back; the ‘Load a cmp file’ screen is reverted to; see Figure 65 on page 139.
  • Page 142 Figure 69 FINISH Screen Figure 70 ‘End Process’ Screen Click the End Process button; the ‘Quick Setup’ screen appears and the full Web application is reactivated. 3Com VCX V7111 VoIP SIP Gateway User Manual...

  • Page 143: Auxiliary Files

    Saving an auxiliary file to flash memory may disrupt traffic on the VCX V7111. To avoid this, disable all traffic on the device before saving to flash memory. A VCX V7111 reset is required to activate a loaded CPT file, and may be required for the activation of certain ini file parameters.
  • Page 144 To load the auxiliary files via the ini file, follow these steps: In the ini file, define the auxiliary files to be loaded to the VCX V7111. You can also define in the ini file whether the loaded files should be stored in the non-volatile memory so that the TFTP process is not required every time the VCX V7111 boots up.

  • Page 145: Save Configuration

    The Reset screen enables you to remotely reset the gateway. Before reset you can choose to save the gateway configuration to flash memory. To reset the VCX V7111, follow these steps: Click the Reset button on the main menu bar; the Reset screen is displayed.
  • Page 146 Select one of the following options: Burn - (default) the current configuration is burned to flash prior to reset. Don’t Burn - resets the VCX V7111 without burning the current configuration to flash (discards all modifications to the configuration). Click the Reset button. If the Burn option is selected, all configuration changes are saved to flash memory.

  • Page 147: Chapter 6: Ini File Configuration Of The Vcx V7111

    Therefore, an encoded ini file significantly reduces these threats. You can choose to load an encoded ini file to the VCX V7111. When you load an encoded ini file, the retrieved ini file is also encoded. Use the ‘TrunkPack Downloadable Conversion Utility’...

  • Page 148: The Ini File Structure

    The ini file should be ended with one or more carriage returns. The ini File Example Figure 75 shows an example of an ini file for the VoIP gateway. 3Com VCX V7111 VoIP SIP Gateway User Manual...
  • Page 149 ; Phone of each endpoint Channel2Phone = 0, 101 Channel2Phone = 1, 102 Channel2Phone = 2, 103 Channel2Phone = 3, 104 EnableSyslog = 0 [Files] CallProgressTonesFilename = 'CPUSA.dat' FXSLoopCharacteristicsFileName = 'coeff.dat' SaveConfiguration = 1 3Com VCX V7111 VoIP SIP Gateway User Manual...
  • Page 150 3Com VCX V7111 VoIP SIP Gateway User Manual...

  • Page 151: Hapter Configuration Files

    File on page 236. Note that only the dat file can be loaded to the VCX V7111 gateway. To load the Call Progress Tones (dat) file to the VCX V7111, use the Embedded Web Server (see Regional Settings on page 129) or the ini file (see...
  • Page 152 For example, Users can define an additional dial tone by appending the second dial tone’s definition lines to the first tone definition in the ini file. The VCX V7111 reports dial tone detection if either of the two tones is detected.

  • Page 153: Format Of The Distinctive Ringing Section In The Ini File

    Second Signal Off Time [10msec]=0 Format of the Distinctive Ringing Section in the ini File Distinctive Ringing is only applicable to VCX V7111/FXS gateways. Using the distinctive ringing section of this configuration file, the User can create up to 16 distinctive ringing patterns.
  • Page 154 First Ring Off Time [10msec]=400 #GR-506-CORE Ringing Pattern 2 [Ringing Pattern #2] Ring Type=2 Freq [Hz]=20 First Ring On Time [10msec]=80 First Ring Off Time [10msec]=40 Second Ring On Time [10msec]=80 Second Ring Off Time [10msec]=400 3Com VCX V7111 VoIP SIP Gateway User Manual...

  • Page 155: Prerecorded Tones (Prt) File

    CPT file. PRT File Format The PRT dat file contains a set of prerecorded tones to be played by the VCX V7111 during operation. Up to 40 tones can be stored in a single file. The prerecorded tones (raw data...

  • Page 156: The Coefficient Configuration File

    The current file supports US line type of 600 ohm AC impedance and (for FXS) 40 V RMS ringing voltage for REN = To load the coeff.dat file to the VCX V7111 use the Embedded Web Server (see Regional Settings on page 129) or alternatively specify the FXS/FXO coeff.dat file name in the...

  • Page 157: Chapter 8: Gateways Capabilities Description

    The "sipgatewayname" parameter (defined in the ini file or set from the Web browser), be any string. Some Proxy servers require that the "sipgatewayname" (in REGISTER messages) is set equal to the Registrar/Proxy IP address or to the Registrar/Proxy domain name. 3Com VCX V7111 VoIP SIP Gateway User Manual...

  • Page 158: Configuring The Dtmf Transport Types

    The RFC 2833 packets are sent even if the remote side didn't include the send "telephone-event" parameter in its SDP, in which case the gateway uses the same PT for send and for receive. 3Com VCX V7111 VoIP SIP Gateway User Manual...
  • Page 159 To exclude RFC 2833 Telephony event parameter from the gateway’s SDP, set ‘RxDTMFOption = 0’ in the ini file. The following parameters affect the way the VCX V7111 SIP handles the DTMF digits: Table 52 Summary of DTMF configuration Parameters...
  • Page 160 [0] = Don’t declare RFC 2833 Telephony-event parameter in SDP [3] = Declare RFC 2833 Telephony-event parameter in SDP (default) The VCX V7111 is designed to always be receptive to RFC 2833 DTMF relay packets. Therefore, it is always correct to include the “Telephony-event” parameter as a default in the SDP.

  • Page 161: Configuring The Gateway's Alternative Routing (Based On Connectivity And Qos)

    • or when DNS host name is not resolved. The VCX V7111 gateway matches the rules starting at the top of the table. For this reason, enter the main IP route above any alternative route. Determining the Availability of Destination IP Addresses...

  • Page 162: Working With Supplementary Services

    Working with Supplementary Services The VCX V7111 SIP FXS and FXO gateways support the following supplementary services: Hold \ Retrieve; see Call Hold and Retrieve on page 162. Consultation \ Alternate; see Consultation / Alternate on page 162. Transfer (Refer + Replaces); see Call Transfer on page 163.

  • Page 163: Call Transfer

    On busy or No reply – Forward incoming calls when the port is busy or when calls are not answered after a configurable period of time. Do Not Disturb – Immediately reject incoming calls. 3Com VCX V7111 VoIP SIP Gateway User Manual...

  • Page 164: Call Waiting

    Three forms of forwarding parties are available: Served party – the party that is configured to forward the call – VCX V7111/FXS. Originating party – the party that initiated the first call – VCX V7111/FXS or FXO. Diverted party – the new destination of the forwarded call – VCX V7111/FXS or FXO.

  • Page 165: Call Termination On Vcx V7111/Fxo

    Call Termination on VCX V7111/FXO The following five methods for call termination are supported by the VCX V7111/FXO. Note that the disconnection methods used by the VCX V7111 must be supported by the CO or PBX. Detection of polarity reversal / current disconnect - This is the recommended method.

  • Page 166: Mapping Pstn Release Cause To Sip Response

    Busy/Reorder tones and doesn’t release the call. For all other VCX V7111 FXS/FXO releases (caused when there are no free channels in the specific hunt group, or when an appropriate rule for routing the call to a hunt group doesn’t exist, or if the phone number isn’t found), the VCX V7111 sends SIP response (to IP)
  • Page 167 Call Connect Time ReleaseTime Call Release Time RTPdelay RTP Delay RTPjitter RTP Jitter RTPssrc Local RTP SSRC RemoteRTPssrc Remote RTP SSRC RedirectReason Redirect Reason Redirection Phone Number Type Redirection Phone Number Plan 3Com VCX V7111 VoIP SIP Gateway User Manual...

  • Page 168: Configuration Examples

    Configuration Examples Establishing a Call Between Two Gateways After you’ve installed and set up the VCX V7111, you can ensure that it functions as expected by establishing a call between it and another gateway. This section exemplifies how to configure two 8FXS SIP gateways in order to establish a call. After configuration, you can make calls between telephones connected to a single 8FXS gateway or between the two 8FXS gateways.

  • Page 169: Sip Call Flow

    10.8.201.158 10.8.201.161 INVITE Ringing 200 OK 200 OK F1 10.8.201.158 ==> 10.8.201.161 INVITE INVITE sip:6000@10.8.201.161;user=phone SIP/2.0 Via: SIP/2.0/UDP 10.8.201.158;branch=z9hG4bKacolwbzYF From: <sip:2000@10.8.201.158>;tag=1c3535 To: <sip:6000@10.8.201.161> Call-ID: 2123353775377NrpL-2000--6000@10.8.201.158 CSeq: 20214 INVITE Contact: <sip:2000@10.8.201.158;user=phone> User-Agent: 3Com-Sip-Gateway/8FXS/v.4.20.299.410 3Com VCX V7111 VoIP SIP Gateway User Manual...
  • Page 170 Supported: 100rel,em Allow: REGISTER,OPTIONS,INVITE,ACK,CANCEL,BYE,NOTIFY,PRACK,REFER,INFO Content-Type: application/sdp Content-Length: 208 s=Phone-Call t=0 0 o=3ComGW 30762 37542 IN IP4 10.8.201.161 c=IN IP4 10.8.201.161 m=audio 4040 RTP/AVP 8 96 a=rtpmap:8 pcma/8000 a=ptime:20 a=rtpmap:96 telephone-event/8000 a=fmtp:96 0-15 3Com VCX V7111 VoIP SIP Gateway User Manual...

  • Page 171: Sip Authentication Example

    Proxy-Authenticate header with the form of the challenge. After sending an ACK for the 407, the User Agent can then resend the INVITE with a Proxy- Authorization header containing the credentials. 3Com VCX V7111 VoIP SIP Gateway User Manual...
  • Page 172 The equation to be evaluated: (according to RFC this part is called A1). “122:3Com.com:3Com”. The MD5 algorithm is run on this equation and stored for future usage. The result is: “a8f17d4b41ab8dab6c95d3c14e34a9e1” To evaluate the par called A2, take the following: The method type “REGISTER” 3Com VCX V7111 VoIP SIP Gateway User Manual...
  • Page 173 Via: SIP/2.0/UDP 10.1.1.200 From: <sip: 122@10.1.1.200>;tag=1c23940 To: <sip: 122@10.1.1.200> Call-ID: 654982194@10.1.1.200 Cseq: 1 REGISTER Date: Thu, 26 Jul 2001 09:34:42 GMT Server: Columbia-SIP-Server/1.17 Content-Length: 0 Contact: <sip:122@10.1.1.200>; expires="Thu, 26 Jul 2001 10:34:42 GMT"; action=proxy; 3Com VCX V7111 VoIP SIP Gateway User Manual...

  • Page 174: Remote Ip Extension Between Fxo And Fxs

    Dialing from Remote Extension (Phone connected to 8FXS) To configure the call, follow these steps: Lift the handset to hear the dial tone coming from PBX, as if the phone was connected directly to PBX. 3Com VCX V7111 VoIP SIP Gateway User Manual...
  • Page 175 In the ‘Automatic Dialing’ screen, enter the phone numbers of the 8FXO gateway in the ‘Destination Phone Number’ fields. When a phone connected to port #1 goes offhook, the FXS gateway automatically dials the number ‘200’. 3Com VCX V7111 VoIP SIP Gateway User Manual...
  • Page 176 In the ‘Automatic Dialing’ screen, enter the phone numbers of the 8FXS gateway in the ‘Destination Phone Number’ fields. When a ringing signal is detected at port #1, the FXO gateway automatically dials the number ‘100’. 3Com VCX V7111 VoIP SIP Gateway User Manual...
  • Page 177 IP address of the 8FXS gateway (10.1.10.3) in the field ‘IP Address’. Figure 86 Tel To IP Routing Screen In the ‘Protocol Management’ screen, set the parameter ‘ Two Stage’ Dialing Mode’ to ‘ IsTwoStageDial=1) 3Com VCX V7111 VoIP SIP Gateway User Manual...
  • Page 178 3Com VCX V7111 VoIP SIP Gateway User Manual...

  • Page 179: Chapter 9: Diagnostics

    Front and rear panel indicator LEDs on the VCX V7111. The location and functionality of the front panel LEDs is shown in VCX V7111 Front Panel LEDs on page 22. The location and functionality of the rear panel LEDs is shown in VCX V7111 Rear Panel on page 23.

  • Page 180: Troubleshooting The Vcx V7111 Via The Rs-232 Port

    Figure 87 below, appears on the terminal screen. This information is used to determine possible VCX V7111 initialization problems, such as incorrectly defined (or undefined) Local IP address, subnet mask, default router IP address, TFTP server IP address, BootFile name, ini file name and full-duplex or half duplex network state.

  • Page 181: Syslog Support

    Connectivity is active at the new IP address. Note: This command requires you to enter all three network parameters (separated by spaces). To save the configuration, at the prompt, type “SAR” and press enter; the VCX V7111 restarts with the new network settings. Syslog Support...

  • Page 182: Operation

    Operation Sending the Syslog Messages The Syslog client, embedded in the firmware of the VCX V7111, sends error reports/events generated by the VCX V7111 unit application to a Syslog server, using IP/UDP protocol. Setting the Syslog Server To set the Syslog server: Use the VCX V7111 Embedded Web Server (Advanced Configuration>Network...

  • Page 183: Chapter 10: Boot P/Dhcp Support

    BootPDelay ini file parameter. Also, the number of requests is 3 by default and can be changed by BootPRetries ini file parameter. Both parameters can also be set using the BootP command line switches. 3Com VCX V7111 VoIP SIP Gateway User Manual...
  • Page 184 BootP/DHCP reply contains ini file reply contains ini file name? name? Preconfigured firmware URL? Download firmware via TFTP Device reset Preconfigured ini file URL? Download configuration files via TFTP Run operational software 3Com VCX V7111 VoIP SIP Gateway User Manual...

  • Page 185: Dhcp Support

    Figure 92 on page 211). Use the RS-232 connector (for detailed information on using the RS-232, see Troubleshooting the VCX V7111 via the RS-232 Port on page 180). Contact your System Administrator. 3Com VCX V7111 VoIP SIP Gateway User Manual...

  • Page 186: Bootp Support

    Using Command Line Switches page 218. Vendor Specific Information Field The VCX V7111 uses the vendor specific information field in the BootP request to provide device-related initial startup information. The BootP/TFTP configuration utility displays this information in the ‘Client Info’ column (see Figure 92 on page 211).
  • Page 187 Analog Channels 2 / 4 / 8 / 24 Table 55 exemplifies the structure of the vendor specific information field for an 3Com TP- 1610 slave module with IP Address 10.2.70.1. Table 55 Structure of the Vendor Specific Information Field...

  • Page 188: Reader's Notes

    Reader's Notes 3Com VCX V7111 VoIP SIP Gateway User Manual...

  • Page 189: Chapter 11: Snmp-Based Management

    Each of these message types fulfills a particular requirement of Network Managers: Get Request - Specific values can be fetched via the ‘get’ request to determine the performance and state of the device. Typically, many different values and parameters 3Com VCX V7111 VoIP SIP Gateway User Manual...

  • Page 190: Snmp Mib Objects

    Tables are distinguished from scalar objects, so that tables can grow without bounds. For example, SNMP defines the ‘ifDescr’ object (as a standard SNMP object) that indicates the text description of each interface supported by 3Com VCX V7111 VoIP SIP Gateway User Manual...

  • Page 191: Snmp Extensibility Feature

    IETF standard ALARM-MIB (rooted in the AC tree) The acActiveAlarmTable is a simple, one-row per alarm table that is easy to view with a MIB browser. 3Com VCX V7111 VoIP SIP Gateway User Manual...

  • Page 192: Alarm History

    MIB browser. Cold Start Trap VCX V7111 technology supports a cold start trap to indicate that the device is starting. This allows the manager to synchronize its view of the device's active alarms. Two different traps are sent at start-up: The standard coldStart trap - iso(1).org(3).dod(6).internet(1).

  • Page 193: Supported Mibs

    Proxy/Gatekeeper routing tables. Supported MIBs The VCX V7111 contains an embedded SNMP Agent supporting the following MIBs: Standard MIB (MIB-II) - The various SNMP values in the standard MIB are defined in RFC 1213. The standard MIB includes various objects to measure and monitor IP activity, TCP activity, UDP activity, IP routes, TCP connections, interfaces and general system indicators.
  • Page 194 Full proprietary trap definitions and trap Varbinds are found in the acBoard MIB and acAlarm MIB. The following proprietary traps are supported in the device: acBoardEvResettingBoard - Sent after the device is reset. acBoardEvBoardStarted - Sent after the device is successfully restored and initialized following reset. 3Com VCX V7111 VoIP SIP Gateway User Manual...

  • Page 195: Snmp Interface Details

    By default, the device uses a single, read-only community string of ‘public’ and a single read- write community string of ‘private’. Users can configure up to 5 read-only community strings and up to 5 read-write community strings, and a single trap community string is supported: 3Com VCX V7111 VoIP SIP Gateway User Manual...
  • Page 196 (recommended), it should be made part of the TrapGroup). Add a row to the vacmSecurityToGroupTable with these values: SecurityModel=2, SecurityName=the new trap community string, GroupName=TrapGroup, ReadGroup or ReadWriteGroup. The SecurityModel and SecurityName objects are row indices. 3Com VCX V7111 VoIP SIP Gateway User Manual...

  • Page 197: Trusted Managers

    MGR. This procedure must be performed from one of the existing Trusted Managers). Add a row to the snmpTargetAddrTable with these values: Name=mgrN, TagList=MGR, Params=v2cparams, where N is an unused number between 0 and 4. 3Com VCX V7111 VoIP SIP Gateway User Manual...

  • Page 198: Snmp Ports

    An agent can now send traps to up to five managers. For each manager, set the following parameters defined in the snmpManagersTable in the acBoardMIB: snmpTrapManagerSending snmpManagerIsUsed snmpManagerTrapPort snmpManagerIP When snmpManagerIsUsed is set to zero (not used), the other three parameters are set to zero. 3Com VCX V7111 VoIP SIP Gateway User Manual...
  • Page 199 SNMP PDU. Configuration via the ini File In the VCX V7111 ini file, the parameters below can be set to enable or disable the sending of SNMP traps. Multiple trap destinations can be supported on the device by setting multiple trap destinations in the ini file.
  • Page 200 To disable a trap destination: Change TagList on the appropriate row in the snmpTargetAddrTable to the empty string. To enable a trap destination: Change TagList on the appropriate row in the snmpTargetAddrTable to ‘AC_TRAP’. 3Com VCX V7111 VoIP SIP Gateway User Manual...

  • Page 201: Snmp Manager Backward Compatibility

    (multiple media gateways in globally distributed enterprise offices, for example), that need to be managed by central personnel. The EMS is not included in the device’s supplied package. Contact 3Com for detailed information on 3Com’s EMS and on the 3Com Enterprise VoIP Network solution for large VoIP deployments.
  • Page 202 3Com VCX V7111 VoIP SIP Gateway User Manual...

  • Page 203: Chapter 12: Selected Technical Specifications

    VCX V7111/FXS Functionality Short or Long Haul: FXS Capabilities VCX V7111/FXS: up to 15k feet (4,600 m) using 24 AWG line cord. up to 24k feet (7,300 m) using 26 AWG line cord. 24FXS: up to 10k feet (3,000 m) using 24 AWG line cord.
  • Page 204 Protocols VoIP Signaling Protocol SIP RFC 3261 Communication Protocols RTP/RTCP packetization. IP stack (UDP, TCP, RTP). Remote Software load (TFTP & BootP, DHCP support). Line Signaling Protocols Loop start, FXS and FXO 3Com VCX V7111 VoIP SIP Gateway User Manual...
  • Page 205 Humidity: 10 to 90% non-condensing Installation Desk-top, shelf, or 19-inch rack mount with side brackets. Electrical Universal 90-264 VAC, 1A, 47-63 Hz 2A for 24FXS 24FXS only, DC power supply 40-60 VDC, 2A 3Com VCX V7111 VoIP SIP Gateway User Manual...
  • Page 206 Gateway configuration using Web browser, ini files or local RS-232 console Management and Maintenance SNMP v2c Syslog, per RFC 3164 Local RS-232 terminal Web Management (via HTTP) All specifications in this document are subject to change without prior notice. 3Com VCX V7111 VoIP SIP Gateway User Manual...
  • Page 207 Ram.cmp files MP124_SIP_xxx.cmp Image file containing the software for the 24FXS gateway. MP108_SIP_xxx.cmp Common Image file Image file containing the software for both VCX V7111/FXS and VCX V7111/FXO gateways. ini files and utilities SIPgw_MP124.ini Sample Ini file for 24FXS gateway.
  • Page 208 3Com VCX V7111 VoIP SIP Gateway User Manual...

  • Page 209: Appendix B: The Boot P/Tftp Configuration Utility

    Trivial File Transfer Protocol (TFTP) described in RFC 906 and RFC 1350. Key Features Internal BootP supporting hundreds of entities. Internal TFTP. Contains all required data for our products in predefined format. 3Com VCX V7111 VoIP SIP Gateway User Manual...

  • Page 210: Specifications

    To load the software and configuration files, follow these steps: Create a folder on your computer that contains all software and configuration files that are needed as part of the TFTP process. 3Com VCX V7111 VoIP SIP Gateway User Manual...

  • Page 211: Bootp/Tftp Application User Interface

    • Clear Log: Click this button to clear all entries from the Log Window portion of the main application screen. Details on the log window are provided in Window on page 212. 3Com VCX V7111 VoIP SIP Gateway User Manual...

  • Page 212: Log Window

    New IP / File: shows the IP address applied to the client as a result of the BootP transaction, as well as the file name and path of a file transfer for a TFTP transaction. 3Com VCX V7111 VoIP SIP Gateway User Manual...

  • Page 213: Setting The Preferences

    MAC address filled out. You can enter data in the remaining fields to create a new client entry for that client. Setting the Preferences The Preferences window, Figure 94, is used to configure the BootP Tool parameters. Figure 94 Preferences Screen 3Com VCX V7111 VoIP SIP Gateway User Manual...

  • Page 214: Bootp Preferences

    Directory: This option is enabled only when the TFTP is enabled. Use this parameter to specify the folder that contains the files for the TFTP utility to manage (cmp, ini, Call Progress Tones, etc.). 3Com VCX V7111 VoIP SIP Gateway User Manual...

  • Page 215: Configuring The Bootp Clients

    95, is used to set up the parameters for each specific VoIP gateway. Figure 95 Client Configuration Screen Adding Clients Adding a client creates an entry in the BootP Tool for a specific gateway. 3Com VCX V7111 VoIP SIP Gateway User Manual...

  • Page 216: Deleting Clients

    Select the client that you wish to edit by clicking on the line in the window for that client. Parameters for that client display in the parameter fields on the right side of the window. Make the changes required for each parameter. 3Com VCX V7111 VoIP SIP Gateway User Manual...

  • Page 217: Testing The Client

    VoIP gateway. The data network gateway is a device, such as a router, that is used in the data network to interface this subnet to the rest of the enterprise network. 3Com VCX V7111 VoIP SIP Gateway User Manual...

  • Page 218: Using Command Line Switches

    Place your cursor after cmp. Press the space bar. Type in the switch you require. Examples: “ramxxx.cmp -fb” to burn flash memory. “ramxxx.cmp -fb -em 4” to burn flash memory and for Ethernet Mode 4 (auto-negotiate). 3Com VCX V7111 VoIP SIP Gateway User Manual...
  • Page 219 'Client Info' on the extreme right). For a full list of the vendor specific Information fields see Vendor Specific Information Field on page 186. Note: This option is not available on DHCP servers. 3Com VCX V7111 VoIP SIP Gateway User Manual...

  • Page 220: Managing Client Templates

    Click on the Delete Current Template button. A warning pop up message appears. To delete the template, click Yes. Note that if this template is currently in use, the template cannot be deleted. 3Com VCX V7111 VoIP SIP Gateway User Manual...

  • Page 221: Appendix C: Rtp/Rtcp Payload Types And Port Allocation

    RTCP BYE packet RTCP APP packet Defined Payload Types Table 60 Defined Payload Types Payload Description Basic Packet Rate [msec] Type G.726 32 kbps G.726 24 kbps G.726 40 kbps G.727 16 kbps 3Com VCX V7111 VoIP SIP Gateway User Manual...

  • Page 222: Default Rtp/Rtcp/T.38 Port Allocation

    Default RTP/RTCP/T.38 Port Allocation Channel Number RTP Port RTCP Port T.38 Port 4000 4001 4002 4010 4011 4012 4020 4021 4022 4030 4031 4032 4040 4041 4042 4050 4051 4052 4060 4061 4062 3Com VCX V7111 VoIP SIP Gateway User Manual...
  • Page 223 4201 4202 4210 4211 4212 4220 4221 4222 4230 4231 4232 To configure the gateway to use the same port for both RTP and T.38 packets, set the parameter ‘T38UseRTPPort’ to 1. 3Com VCX V7111 VoIP SIP Gateway User Manual...
  • Page 224 3Com VCX V7111 VoIP SIP Gateway User Manual...

  • Page 225: Appendix D: Fax And Modem Transport Modes

    When VxxTransportType= 2 (FaxModemBypass, Vxx can be one of the following: V32/V22/Bell/V34/Fax), then on detection of Fax/Modem, the channel automatically switches from the current voice coder to a high bit-rate coder, as defined by the User, with the FaxModemBypassCoderType configuration parameter. 3Com VCX V7111 VoIP SIP Gateway User Manual...

  • Page 226: Supporting V.34 Faxes

    T.30 faxes; as a T.30 machine, the V.34 fax can use T.38 Relay mode. Refer to the following configuration: • FaxTransportMode = 1 (Relay) • V34ModemTransportType = 0 (Transparent) • V32ModemTransportType = 0 • V23ModemTransportType = 0 3Com VCX V7111 VoIP SIP Gateway User Manual...
  • Page 227 • V22ModemTransportType = 0 Both T.30 and V.34 faxes use T.38 Relay mode. This configuration forces the V.34 fax machine to operate in the slower T.30 mode. 3Com VCX V7111 VoIP SIP Gateway User Manual...
  • Page 228 3Com VCX V7111 VoIP SIP Gateway User Manual...

  • Page 229: Appendix E: Customizing The Vcx V7111 Web Interface

    Customers incorporating the VCX V7111 into their portfolios can customize the Web Interface to suit their specific corporate logo and product naming conventions. Customers can customize the Web Interface’s title bar (3Com’s title bar is shown in Figure 97 a customized title bar is shown in Figure 98).

  • Page 230: Replacing The Main Corporate Logo With An Image File

    59 pixels (the width can be configured). The combined size of the image files (logo and background) is limited to 64 kbytes. To use your own logo via the Web interface, follow these steps: Access the VCX V7111 Embedded Web Server (see Configuring the Web Interface via the ini File on page 44).

  • Page 231: Replacing The Main Corporate Logo With A Text String

    Modifying ini File Parameters via the Web Interface’s AdminPage on page 233. To replace 3Com’s default logo with a text string via the ini file, add/modify the two ini file parameters in Table 63 according to the procedure described in Modifying an ini File page 147.

  • Page 232: Replacing The Background Image File

    59 pixels. The combined size of the image files (logo and background) is limited to 64 kbytes. To replace the background image via the Web, follow these steps: Access the VCX V7111 Embedded Web Server (see Configuring the Web Interface via the ini File on page 44).

  • Page 233: Customizing The Product Name

    File Parameters via the Web Interface’s AdminPage on page 233. To replace 3Com’s default product name with a text string via the ini file, add/modify the two ini file parameters in Table 65 according to the procedure described in...
  • Page 234 Output Window displays a log displaying information on the operation. You cannot load the image files (e.g., logo/background image files) to the device by choosing a file name parameter in this screen. 3Com VCX V7111 VoIP SIP Gateway User Manual...

  • Page 235: Appendix F: Accessory Programs And Tools

    Encoding / Decoding an ini File on page 236). Create a loadable Prerecorded Tones file (see Creating a Loadable Prerecorded Tones File on page 238). Figure 101 TrunkPack Downloadable Conversion Utility Opening Screen 3Com VCX V7111 VoIP SIP Gateway User Manual...

  • Page 236: Converting A Cpt Ini File To A Binary Dat File

    Click the Make File button; you’re prompted that the operation (conversion) was successful. 10 Close the application. Encoding / Decoding an ini File For detailed information on secured ini file, see Secured ini File on page 147. 3Com VCX V7111 VoIP SIP Gateway User Manual...
  • Page 237 Click the Decode File(s) button; a decoded ini file with the name you specified is created. Note that the decoding process verifies the input file for validity. Any change made to the encoded file causes an error and the decoding process is aborted. 3Com VCX V7111 VoIP SIP Gateway User Manual...

  • Page 238: Creating A Loadable Prerecorded Tones File

    Figure 104 opens. Figure 104 Prerecorded Tones Screen To add the prerecorded tone files (you created in Step 1) to the ‘Prerecorded Tones’ screen follow one of these procedures: 3Com VCX V7111 VoIP SIP Gateway User Manual...

  • Page 239: Call Progress Tones Wizard

    Call Progress Tones), providing a good starting point when configuring an VCX V7111/FXO gateway. This ini file can then be converted to a dat file that can be loaded to the gateway using the TrunkPack Downloadable Conversion utility.

  • Page 240: Installation

    CPTWizard doesn’t display the next screen and an error is reported. Recording Screen – Automatic Mode After the connection to the VCX V7111/FXO gateway is established, the recording screen is displayed. 3Com VCX V7111 VoIP SIP Gateway User Manual...
  • Page 241 (by the gateway) and analyzed (by the wizard) correctly. At the end of a successful detection operation, the detected Call Progress Tones are displayed in the Tones Analyzed pane (see Figure 108). 3Com VCX V7111 VoIP SIP Gateway User Manual...
  • Page 242 PBX. During the first run of the CPTWizard, it is likely that the gateway does not detect any tones. Some tones cannot be detected by the VCX V7111 gateway hardware (such as 3-frequency tones and complex cadences). CPTWizard is therefore limited to detecting only those tones that can be detected on the VCX V7111 gateway.

  • Page 243: Recording Screen - Manual Mode

    “busy” signal). Repeat the process for more tones, as necessary. When you’re finished adding tones to the list, press Next to generate a Call Progress Tones ini file and terminate the wizard. 3Com VCX V7111 VoIP SIP Gateway User Manual...

  • Page 244: The Call Progress Tones Ini File

    ## Some tones matched PBX/country Audc US ## Additional database tones guessed below (remove #'s to use). # # Audc US, US Ringback tone # [CALL PROGRESS TONE #5] # Tone Type=2 # Low Freq [Hz]=450 3Com VCX V7111 VoIP SIP Gateway User Manual...
  • Page 245 For full operability of the VCX V7111/FXO gateway, it may be necessary to edit this file and add more Call Progress Tone definitions. Sample Call Progress Tones ini files are available in the release package.

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