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3Com V7111 - VCX 4 Channels Analog FXO Media Gateway User Manual

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3Com
VCX
V7111 VoIP SIP
®
™
Gateways User Manual
Version 4.2
http://www.3com.com
Part Number 900-0182-01 Rev AA
Published June 2004
1

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Summary of Contents for 3Com V7111 - VCX 4 Channels Analog FXO Media Gateway

  • Page 1 3Com V7111 VoIP SIP ® ™ Gateways User Manual Version 4.2 http://www.3com.com Part Number 900-0182-01 Rev AA Published June 2004...
  • 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

    Reader's Notes 25 3: VCX V7111 24FXS H HAPTER ARDWARE NSTALLATION Hardware Installation Procedure 27 Unpacking 27 MDF Adapter 27 Cable Connections 28 Front Panel LED Indicators 31 Rear Panel LED Indicators/Connectors 32 3Com VCX V7111 VoIP SIP Gateways User Manual...
  • Page 4 Configuring the TFTP Server 43 Using the 3Com BootP/TFTP Configuration Utility 43 Configuring the Windows NT DHCP Server 44 VCX V7111 Software Upgrade 44 General Upgrade Procedure 44 Upgrade Procedure Using the 3Com Configuration Utility 45 Reader’s Notes 48 5: P HAPTER ROFILING AND...
  • Page 5 LED Visual Indicator Status and Alarms 124 VCX V7111 Self-Testing 124 RS-232 Terminal 125 SysLog Support 126 Overview 126 SysLog Operation 127 Solutions to Possible Problems 127 General 127 Possible Common Problems 128 Reader’s Notes 130 3Com VCX V7111 VoIP SIP Gateways User Manual...
  • Page 6 Configuring Fax Relay Mode 153 Configuring Fax/Modem ByPass Mode 154 Supporting V.34 Faxes 155 Using Bypass Mechanism for V.34 Fax Transmission 155 Using Relay Mode for Both T.30 and V.34 Faxes 155 Reader's Notes 156 3Com VCX V7111 VoIP SIP Gateways User Manual...
  • Page 7 Register Your Product to Gain Service Benefits 163 Solve Problems Online 163 Purchase Extended Warranty and Professional Services 163 Access Software Downloads 164 Contact Us 164 Telephone Technical Support and Repair 164 3Com VCX V7111 VoIP SIP Gateways User Manual...
  • Page 8 3Com VCX V7111 VoIP SIP Gateways 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 Date Published nor can it accept responsibility for errors or omissions.

  • Page 10: Telecommunication Safety

    Chapter 9: Specifications Appendix A: BootP/TFTP Configuration Utility Appendix B: RTP/RTCP Payload Types Appendix C: DTMF, Fax, and Modem Modes Appendix D: DHCP Server Configuration Appendix E: Obtaining Support for Your 3Com Products 3Com VCX V7111 VoIP SIP Gateways User Manual...

  • Page 11: Conventions

    Any FXO Gateway: the 4FXO or the 8FXO When referring to all these products generally, this document uses the term VCX V7111. Related Documentation The following documents are available on the 3Com Partner Access website for the 3Com VCX V7111 Gateway: 3Com VCX V7111 SIP Release Notes...

  • Page 12: About Thi Guide

    Please include the following information with your comments: 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 Page 25 3Com VCX V7111 VoIP SIP Gateways User Manual...

  • Page 13: Chapter 1: Vcx V7111 Sip Overview

    Additionally, for emergency use, the VCX V7111 FXS Gateway provides a Life Line, connected to the unused pins on port 4 (or port 2 for the 2FXS), with a relay to an analog line, even if the Gateway is powered off. 3Com VCX V7111 VoIP SIP Gateways User Manual...
  • Page 14 ™ 24 Channels (FXS) VCX V7111 8FXS Front View Figure 2 V7111 Analog Gateway ™ 8 Channels (FXS) VCX V7111 4FXS Front View Figure 3 VCX V7111 2FXS Front View Figure 4 3Com VCX V7111 VoIP SIP Gateways User Manual...
  • Page 15 Typical VCX V7111 VoIP Application Figure 5 3Com VCX V7111 VoIP SIP Gateways User Manual...

  • Page 16: Vcx V7111 Key Features

    50 pin Telco connector. Mounting option of installing two VCX V7111 4FXS, 4FXO, 8FXS, or 8FXO Gateways in a single 19-inch rack shelf, one U high (1.75" or 44.5 mm). 3Com VCX V7111 VoIP SIP Gateways User Manual...

  • Page 17: Reader's Notes

    Reader's Notes 3Com VCX V7111 VoIP SIP Gateways User Manual...
  • Page 18 3Com VCX V7111 VoIP SIP Gateways User Manual...

  • Page 19: Chapter 2: 2, 4, Or 8 Channel Vcx V7111 Hardware Installation

    Check that there is no equipment damage. Check, retain, and process any documents. Notify 3Com of any damage or discrepancies. CAUTION: Installation and service of 3Com VCX V7111 products must be performed only by authorized, qualified service personnel. 3Com VCX V7111 VoIP SIP Gateways User Manual...

  • Page 20: Rack Mounting Installation

    19-inch rack, using standard 19-inch rack bolts (not provided). To connect the cables, see “Cable Connections” on page 21. Desktop Mounting Installation VCX V7111 Desktop or Shelf Figure 7 3Com VCX V7111 VoIP SIP Gateways User Manual...

  • Page 21: Cable Connections

    8FXS and 4FXS Gateways provide a Life Line connection on port 4. The VCX V7111 2FXS Gateway provides a Life Line connection on port 2. The 24 FXS and VCX V7111 FXO Gateways do not support the Life Line. 3Com VCX V7111 VoIP SIP Gateways User Manual...

  • Page 22: Front Panel Led Indicators

    The VCX V7111 front panel LEDs indicate the Ethernet LAN status, Data (RTP) activity, and state of the Gateway’s ports. Front Panel LED Indicators Figure 10 Figure 10 Legend Table 4 Restart button Functionality of the Front Panel LEDs is explained in Table 3Com VCX V7111 VoIP SIP Gateways User Manual...

  • Page 23: Rear Panel Led Indicators And Connectors

    Green Line-Seize/Ringing State for Line Port Rear Panel LED Indicators and Connectors Rear Panel LED Indicators and Connectors Figure 11 RS-232 100-250 V ~1A 1 to 8 FXS or FXS Ports ETH-1 3Com VCX V7111 VoIP SIP Gateways User Manual...
  • Page 24 10/100 Base-T Port Shielded Gateway connects to PC’s RS-232 port RS-232 DB-9, DCE Status Messages with a straight cable (Figure 58 on page 125). Grounding Chassis Ground Must be securely connected. screw 3Com VCX V7111 VoIP SIP Gateways User Manual...

  • Page 25: Reader's Notes

    Reader's Notes 3Com VCX V7111 VoIP SIP Gateways User Manual...
  • Page 26 3Com VCX V7111 VoIP SIP Gateways User Manual...

  • Page 27: Chapter 3: Vcx V7111 24Fxs Hardware Installation

    3: VCX V7111 24FXS HAPTER ARDWARE NSTALLATION CAUTION: Installation and service of 3Com VCX V7111 products must be performed only by authorized, qualified service personnel. Hardware Installation Procedure Unpacking To unpack the VCX V7111 24FXS, follow these steps: Open the carton and remove packing materials.

  • Page 28: Cable Connections

    The only equipment shown in Figure 12 and supplied by 3Com is the VCX V7111 24FXS Gateway and, as an option, the MDF Adapter. As input (on the front of the 19-inch rack), the Adapter Block takes in twenty-four 2-wire lines with standard RJ-11 connectors.
  • Page 29 1 2 3 4 5 6 7 8 1 2 3 4 1 - Tx+ Not connected 4, 5, 7, 8 2 - Tx- 3 - Rx+ Ring connected Not connected 6 - Rx- 3Com VCX V7111 VoIP SIP Gateways User Manual...
  • Page 30 VCX V7111 24FXS and labeled 100 – 250 V ~ 50 – 60 Hz 2A. Observe the front panel LEDs to determine the functioning of the VCX V7111 24FXS. 3Com VCX V7111 VoIP SIP Gateways User Manual...

  • Page 31: Front Panel Led Indicators

    The functions of all the LEDs of the VCX V7111 24FXS are shown in Table Front Panel LED Indicators Front Panel LED Indicators Figure 16 V7111 Analog Gateway ™ 24 Channels (FXS) Figure 16 Legend Table 11 Channels 1-24 Data Control Ready 3Com VCX V7111 VoIP SIP Gateways User Manual...

  • Page 32: Rear Panel Led Indicators/Connectors

    Rear Panel LED Indicators and Connectors Figure 17 ANALOG LINES 1-20 RS-232 Data Cntrl Ready 1 2 3 4 5 100 - 250V~ CONFIG Eth 1 Eth 2 50 - 60Hz 2A 3Com VCX V7111 VoIP SIP Gateways User Manual...
  • Page 33 Device Powered and Self-test OK Status Orange Software Loading/Initialization Malfunction Eth 1 Ethernet Green Valid link to 10/100 Base-T hub/switch Status Malfunction Eth 2 Ethernet Green Valid link to 10/100 Base-T hub/switch Status Malfunction 3Com VCX V7111 VoIP SIP Gateways User Manual...
  • Page 34 Gateway connects to PC’s RS-232 Messages port with a straight cable (see Figure 58 on page 125). The DIP switch located on the VCX V7111 24FXS rear panel is not functional and should not be used. 3Com VCX V7111 VoIP SIP Gateways User Manual...

  • Page 35: Reader's Notes

    Reader's Notes 3Com VCX V7111 VoIP SIP Gateways User Manual...
  • Page 36 3Com VCX V7111 VoIP SIP Gateways User Manual...

  • Page 37: Chapter 4: Software Installation

    MIB library – Library of SNMP MIBs. Utilities: INI file utility.xls – Excel utility for creation of the INI file. TPDMUtil.exe – Call progress tones file generator utility. Bootp_install.exe– 3Com BootP and TFTP configuration utility. 3Com VCX V7111 VoIP SIP Gateways User Manual...

  • Page 38: Vcx V7111 Initialization

    (such as Microsoft Explorer). It is assumed that the IP address of the Gateway is known. If the IP address is unknown, use the 3Com Configuration Utility (or any standard BootP server) to set the Gateway IP address and subnet mask.
  • Page 39 In the Quick Setup screen, complete the Gateway’s new IP address, NAT IP Address, Subnet Mask, and Default Gateway IP Address fields. Set the basic SIP Gateway Parameters, as shown in Figure 3Com VCX V7111 VoIP SIP Gateways User Manual...
  • Page 40 101, in adjacent Phone Number field. The 8FXS physical ports are associated with phone numbers from 101 through 108. You do not need to fill the Hunt Group ID column. Click Submit and close the window. Endpoints' Phone Numbers Figure 20 3Com VCX V7111 VoIP SIP Gateways User Manual...

  • Page 41: Bootp And Tftp Procedures

    If the Gateway IP address is known, you can use a web browser for Gateway configuration and provisioning. Otherwise, you can use BootP (or DHCP) and TFTP protocols for initialization and software download. Each time the VCX V7111 Gateway is powered-on, it performs the standard BootP procedure. 3Com VCX V7111 VoIP SIP Gateways User Manual...
  • Page 42 Gateway IP Address – If a default Gateway/Router is required, complete this field; otherwise, enter the address 0.0.0.0. Subnet Mask – Set the subnet mask fields to correspond to your network IP address settings. 3Com VCX V7111 VoIP SIP Gateways User Manual...

  • Page 43: Configuring The Tftp Server

    TFTP Server IP address – Usually TFTP and BootP servers are installed on the same host. However, when using the 3Com Configuration utility or a Microsoft DHCP server, it is possible to set the IP address of TFTP server (Boot Server Host Name field), and in this case BootP and TFTP servers can run from different hosts.

  • Page 44: Configuring The Windows Nt Dhcp Server

    (either from a TFTP Server or from the Embedded Web Server) it is mandatory to download the ram.cmp file and all other related files: INI, coefficient, and call progress tone. 3Com VCX V7111 VoIP SIP Gateways User Manual...

  • Page 45: Upgrade Procedure Using The 3Com Configuration Utility

    RAM, and not permanently stored into flash. Upgrade Procedure Using the 3Com Configuration Utility The following procedure describes how to upgrade VCX V7111 software using the 3Com Configuration Utility. To upgrade the Software using the 3Com Configuration Utility, follow these steps: Download and install the 3Com Configuration Utility with your web browser.
  • Page 46 24. The parameter fields displayed on the right side of the screen constitute the VCX V7111 software profile configuration. The parameter fields are all blank in the case of a Client Not Found. 3Com VCX V7111 VoIP SIP Gateways User Manual...
  • Page 47 13 To permanently store the new image file in the VCX V7111 flash memory, add –fb suffix to Boot file name, such as ram.cmp –fb. After entering the file names, click Apply & Reset.The following status messages are displayed in the 3Com BootP/TFTP Server main screen: 3Com Configuration Utility –...

  • Page 48: Reader's Notes

    Reader’s Notes 3Com VCX V7111 VoIP SIP Gateways User Manual...

  • Page 49: Chapter 5: Profiling And Operation

    (or configured from the web). By default the REGISTER request will be sent to the proxy IP address. It is possible to change the registration address by configuring the REGISTRAR IP address. 3Com VCX V7111 VoIP SIP Gateways User Manual...
  • Page 50 122@myproxy.com. Reliable UDP transport, with retransmissions. Supported codecs: G.711 A-law G.711 µ -law G.723 G.729A G.726 NetCoders (from 6.4 through 8.8 Kbps) Can negotiate codec from a list of given codecs 3Com VCX V7111 VoIP SIP Gateways User Manual...

  • Page 51: Using Sip Gateway Features

    (OPTIONS). ProxyName Proxy domain name used in SIP Request- SIPgw URI. If this parameter is not specified, the Proxy IP address will be used instead in SIP URL. No Proxy IsProxyUsed SIPgw 3Com VCX V7111 VoIP SIP Gateways User Manual...
  • Page 52 Maximal number of digits in dialed number. Time in TimeBetweenDigits General seconds Timeout between dialed digits, used to terminate dialing. Usually it is set to four seconds. Choose Coder CoderName General Preferred coder name 3Com VCX V7111 VoIP SIP Gateways User Manual...
  • Page 53 The FXO Gateway releases the call if busy or fast busy (reorder) tone is detected on the FXO port. 3Com VCX V7111 VoIP SIP Gateways User Manual...
  • Page 54 INVITE, is used for seizing specific FXO line that has same number. The FXO Gateway releases the call if busy or fast busy (reorder) tone is detected on the FXO port. 3Com VCX V7111 VoIP SIP Gateways User Manual...
  • Page 55 IP calls. This feature enables users to differentiate incoming IP calls and apply routing and number manipulation rules, based on the hunt group from where the call arrived. When using Hunt groups ChannelList and Channel2Phone parameters are ignored. 3Com VCX V7111 VoIP SIP Gateways User Manual...

  • Page 56: Getting Started Sip Gateway Example

    IsProxyUsed = 0 ; Phone of each end point ChannelList = 0,8,101 ; Logger information EnableSyslog = 0 LoggerFormat = 0 ; IP to Phones routing table Prefix = 10,10.2.37.10 Prefix = 20,10.2.37.20 3Com VCX V7111 VoIP SIP Gateways User Manual...

  • Page 57: Sip Call Flow

    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> Supported: 100rel,em Accept-Language: en Allow: REGISTER,OPTIONS,INVITE,ACK,CANCEL,BYE,NOTIFY,PRACK,REFER,INFO 3Com VCX V7111 VoIP SIP Gateways User Manual...
  • Page 58 Content-Length: 0 Phone 6000 goes onhook, Gateway 10.8.201.161 sends BYE to Gateway 10.8.201.158. F5 10.8.201.161 ==> 10.8.201.158 BYE sip:2000@10.8.201.158;user=phone;user=phone SIP/2.0 Via: SIP/2.0/UDP 10.8.201.161;branch=z9hG4bKacLBzZgmA From: <sip:6000@10.8.201.161>;tag=1c29715 To: <sip:2000@10.8.201.158>;tag=1c3535 Call-ID: 2123353775377NrpL-2000--6000@10.8.201.158 CSeq: 34541 BYE 3Com VCX V7111 VoIP SIP Gateways User Manual...

  • Page 59: Sip Authentication Example

    Date: Mon, 30 Jul 2001 15:33:54 GMT Server: Columbia-SIP-Server/1.17 Content-Length: 0 WWW-Authenticate: Digest realm="3com.com", nonce="11432d6bce58ddf02e3b5e1c77c010d2", stale=FALSE, algorithm=MD5 According to the sub-header present in the WWW-Authenticate header the correct REGISTER request is formed. 3Com VCX V7111 VoIP SIP Gateways User Manual...
  • Page 60 At this time a new REGISTER request is issued with the response: REGISTER sip:10.2.2.222 SIP/2.0 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 Contact: sip:122@10.1.1.200: Expires:3600 Authorization: Digest, username: 122, 3Com VCX V7111 VoIP SIP Gateways User Manual...

  • Page 61: Remote Extension With Fxo And Fxs Gateways Example

    8FXS Gateways. In this configuration, PBX incoming calls are routed to Remote Extension using the 8FXO and 8FXS Gateways. Requirements One 8FXO Gateway One 8FXS Gateway Analog phones (POTS) PBX – one or more PBX loop start lines 3Com VCX V7111 VoIP SIP Gateways User Manual...
  • Page 62 Dialing from other PBX line, or from PSTN To configure the call, follow these steps: Dial the PBX subscriber number the same way as if the user’s phone was connected directly to PBX. 3Com VCX V7111 VoIP SIP Gateways User Manual...
  • Page 63 Configure TargetOfChannel table to include phone numbers of the 8FXS Gateway: such as TargetOfChannel0= 100 (when ringing signal is detected at port 0 of FXO Gateway, the FXO Gateway automatically dials 100 number). 3Com VCX V7111 VoIP SIP Gateways User Manual...
  • Page 64 TargetOfChannel1 = 101 TargetOfChannel2 = 102 TargetOfChannel3 = 103 TargetOfChannel4 = 104 TargetOfChannel5 = 105 TargetOfChannel6 = 106 TargetOfChannel7 = 107 ;------------------------------------ ; Phones to IP routing table ;------------------------------------ Prefix = 10,10.1.10.3 3Com VCX V7111 VoIP SIP Gateways User Manual...

  • Page 65: Reader's Notes

    Reader's Notes 3Com VCX V7111 VoIP SIP Gateways User Manual...
  • Page 66 3Com VCX V7111 VoIP SIP Gateways User Manual...

  • Page 67: Chapter 6: Provisioning

    The configuration INI file can be downloaded with a web browser using HTTP or TFTP protocols or by using the 3Com configuration utility. The INI file name is provided in the field Boot File Name of the BootP server.

  • Page 68: Basic, Logging, And Web Parameters

    (10 Base-T, 100 Base-T) in this mode is always configured correctly. DNSPriServerIP IP address of primary DNS server (DNS Primary Server IP) DNSSecServerIP IP address of secondary DNS server (DNS Secondary Server IP) 3Com VCX V7111 VoIP SIP Gateways User Manual...
  • Page 69 WatchDogStatus 0 = Disable Gateway’s watchdog 1 = Enable Gateway’s watchdog (default) EnableLanWatchDog 0 – Disable LAN Watchdog (default) 1 – Enable LAN Watchdog VCX V7111 restarts if LAN failure is detected 3Com VCX V7111 VoIP SIP Gateways User Manual...
  • Page 70 (Network Settings/SNMP Manager IP) For example: SNMPManagerIP = 10.2.1.10 DisableSNMP 0 = SNMP is enabled (default) (Network/Settings/Enable 1 = SNMP is disabled SNMP) HTTPport HTTP port used for Web management (default = 80) 3Com VCX V7111 VoIP SIP Gateways User Manual...

  • Page 71: Channel Parameters

    (Default = -12 dBm) Fax gain control. FaxRelayECMEnable 0 = Disable using ECM mode during Fax Relay (Fax Relay ECM Enabled) 1 = Enable using ECM mode during Fax Relay. (default) 3Com VCX V7111 VoIP SIP Gateways User Manual...
  • Page 72 0 = Transparent, (default) (V21 Transport Type) 2 = ModemBypass V22ModemTransportType 0 = Transparent (V22 Transport Type) 2 = ModemBypass, (default) V23ModemTransportType 0 = Transparent (V23 Transport Type) 2 = ModemBypass, (default) 3Com VCX V7111 VoIP SIP Gateways User Manual...
  • Page 73 3 = erase digit from voice stream, relay to remote according to RFC 2833 standard. 7 = digits are sent using RFC 2833 standard, but received RFC 2833 digits are muted from the audio stream. 3Com VCX V7111 VoIP SIP Gateways User Manual...
  • Page 74 The RFC 2833 DTMF relay dynamic payload type. (RFC 2833 Payload Type) Range: 96 – 99, 106 – 127; Default = 96 The 100, 102 – 105 range is allocated for 3Com proprietary usage. The same payload type should be used for receive and transmit.
  • Page 75 0 = CoderLoopback, encoder-decoder loopback inside DSP. 1 = PCMLoopback, loopback the incoming PCM to the outgoing PCM. 2 = ToneInjection, generates a 1000 Hz tone to outgoing PCM. 3 = NoLoopback, (default). 3Com VCX V7111 VoIP SIP Gateways User Manual...

  • Page 76: Sip Parameters

    If the proxy name is not specified, the Proxy IP address is used instead. EnableProxyKeepAlive 0 = Disable (default) (Enable Proxy Keep Alive) 1 = Keep alive with Proxy, every 60 seconds sends an OPTIONS SIP message 3Com VCX V7111 VoIP SIP Gateways User Manual...
  • Page 77 Single Registration and Authentication (AuthenticationMode=1) is usually defined for FXO Gateways. Selecting AuthenticationMode=2 and IsUseFreeChannel=0 leads to a separate registration of each Endpoint. Selecting AuthenticationMode=2 and IsUseFreeChannel=1 leads to a single Gateway registration. 3Com VCX V7111 VoIP SIP Gateways User Manual...
  • Page 78 1 = Hold (or unhold) is activated in FXS Gateway using HookFlash (Enable Hold) signaling SIPDestinationPort SIP UDP destination port for sending SIP messages. Default = 5060 (SIP Destination Port) LocalSIPPort Local UDP port used to receive SIP messages (default = 5060) 3Com VCX V7111 VoIP SIP Gateways User Manual...
  • Page 79 SipT1Rtx Timer T1 value for retransmission in ms. SipT1Rtx = 500 (SIP T1 Retransmission Timer [ms]) SipT2Rtx Timer T2 value for retransmission in ms. SipT2Rtx = 4000 (SIP T2 Retransmission Timer [ms]) 3Com VCX V7111 VoIP SIP Gateways User Manual...
  • Page 80 = Hunt group ID, starting with 1 a = Starting port b = Ending port (up to 24 for 24FXS) c = phone number allocated for the first port For example: TrunkGroup_1 = 1–4,100 TrunkGroup_2 = 5–8,200 3Com VCX V7111 VoIP SIP Gateways User Manual...
  • Page 81 For 8-port and 24-port Gateways it is suggested to use ChannelList = parameter, where in a single line, all Gateway’s phone numbers can be defined. The Channel2Phone can be used instead or in addition to ChannelList = parameter. 3Com VCX V7111 VoIP SIP Gateways User Manual...
  • Page 82 SourceNumberMapTEL2IP Identical rules to those of destination number (Manipulation Tables: TEL Source Numbers) SourceNumberMapIP2TEL Identical rules to those of destination number (Manipulation Tables: IP Source Numbers) 3Com VCX V7111 VoIP SIP Gateways User Manual...
  • Page 83 This parameter is applicable for both FXS and FXO Gateways. If DialisNeeded =1 the FXO Gateway will seize the line (after detecting the ringing signal), play a dial tone, collect DTMF digits and send INVITE to IP destination. 3Com VCX V7111 VoIP SIP Gateways User Manual...
  • Page 84 (IsUseFreeChannel should be 1), and dials the destination phone number received in INVITE message. Use the IsWaitForDialTone parameter to specify whether the dialing should come after detection of dial tone, or immediately after seizing of the line. 3Com VCX V7111 VoIP SIP Gateways User Manual...
  • Page 85 1 = INFO message is used to transfer DTMF digits, implementing IETF draft draft-choudhuri-sip-info-digit-00 To use out of band DTMF transfer, disable in band DTMF (DTMFTransportType=0, erase digit and do not relay). 3Com VCX V7111 VoIP SIP Gateways User Manual...
  • Page 86 0 = The line polarity is not changed on answer (default) (Enable Polarity Reversal) 1 = The line polarity is changed on call answer and then changed back on call release Applicable for VCX V7111 FXS Gateways. 3Com VCX V7111 VoIP SIP Gateways User Manual...
  • Page 87 Facility = 17 (local1) and Severity = 6 (Informational) EnableBusyOut 0 = Not used (default) 1 = If LAN or Proxy are not responding, the Gateway plays a reorder tone when the phone is OffHooked. 3Com VCX V7111 VoIP SIP Gateways User Manual...

  • Page 88: Loading Configuration Files

    The general form of the INI file is shown in the following figure. INI File Structure Figure 29 [Sub Section Name] Parameter_Name = Parameter_Value Parameter_Name = Parameter_Value ; REMARK [Sub Section Name] 3Com VCX V7111 VoIP SIP Gateways User Manual...

  • Page 89: The Ini File Structure Rules

    The INI file should be ended with one or more carriage returns. [Files] line should precede the CallProgressTonesFileName, and these lines, if used, should be placed at the end of INI file; (see the INI file example, Figure 30). 3Com VCX V7111 VoIP SIP Gateways User Manual...

  • Page 90: The Ini File Example

    To restore VCX V7111 default configuration parameters, use the mp1xx.ini file without any valid parameters or with semicolon (;) character preceding all lines in the file. 3Com VCX V7111 VoIP SIP Gateways User Manual...

  • Page 91: Excel Utility For Ini File Generation

    The Excel Utility enables easy generation of VCX V7111 Gateway INI files. To use the Excel utility, first install the Microsoft Office 2000 Excel application. General Data Sheet General Data Sheet Figure 31 3Com VCX V7111 VoIP SIP Gateways User Manual...

  • Page 92: End Points

    End Points Page End Points Page Figure 32 3Com VCX V7111 VoIP SIP Gateways User Manual...

  • Page 93: Phones To Ip Routing Table

    The Call Progress Tones Configuration File contains the definitions of the call progress tones and characteristics of ringing signal to be detected/generated by the VCX 7111. You can use either VCX V7111, one of the configuration files supplied by 3Com, or construct their own file.

  • Page 94: Format Of The Call Progress Ini File

    First Signal Off Time [10 msec] – Signal Off period (in 10 ms units) for the first cadence on-off cycle. Second Signal On Time [10 msec] – Signal On period (in 10 ms units) for the second cadence on-off cycle. 3Com VCX V7111 VoIP SIP Gateways User Manual...

  • Page 95: Default Template For Call Progress Tones

    For example, you can define an additional dial tone by appending the second dial tone definition lines to the tone INI file. The VCX V7111 reports dial tone detection if either one of the two tones has been detected. 3Com VCX V7111 VoIP SIP Gateways User Manual...
  • Page 96 Low Freq [Hz]=480 High Freq [Hz]=620 Low Freq Level [-dBm]=24 High Freq Level [-dBm]=24 First Signal On Time [10msec]=50 First Signal Off Time [10msec]=50 Second Signal On Time [10msec]=50 Second Signal Off Time [10msec]=50 3Com VCX V7111 VoIP SIP Gateways User Manual...

  • Page 97: Format Of The Ringing Definition

    The ringing frequency can be configured in the range from 10 Hz through 200 Hz with a 5 Hz resolution. Each ringing cadence period can be defined as single ringing burst. See the following examples. 3Com VCX V7111 VoIP SIP Gateways User Manual...
  • Page 98 Burst – Configures the ringing signal to be a single ringing burst comprised of all specified cadences. The Burst string is defined per each ringing cadence and it must appear between First/Second/Third/Forth string and the Ring On/Off Time. 3Com VCX V7111 VoIP SIP Gateways User Manual...

  • Page 99: Call Progress Tone And Ringing Generation And Download Procedure

    To generate and download the Call Progress Tone file, follow these steps: Prepare the tone.ini file including call progress tones and ringing parameters. Use the Download conversion utility to generate binary tone.dat file. See Figure 3Com VCX V7111 VoIP SIP Gateways User Manual...
  • Page 100 Click Make File and then close the application. Edit the mp-1xx.ini file and add the following two lines: CallProgressTonesFilename = 'usa_tone.dat' BurnCallProgressTonesFile = 1 Save the usa_tone.dat and mp108.ini files in TFTP folder. 3Com VCX V7111 VoIP SIP Gateways User Manual...

  • Page 101: The Coeff.dat Configuration File

    The digital nature of the filters and gain stages also ensures high reliability, no drifts (over temperature or time) and simple variations between different line types. The coeff.dat configuration file is produced by 3Com for each market after comprehensive performance analysis and testing, and can be modified on request. The current file supports US line type of 600 ohm AC impedance and 40 V RMS ringing voltage for REN = 2.

  • Page 102: Reader's Notes

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

  • Page 103: Chapter 7: Device Management

    (such as the IP MIB), VoIP-specific MIBs (such as RTP) and a proprietary MIB (known also as 3Com MIB) enabling a deeper probe into the inter-working of the Gateway. All the supported MIBs files are supplied as part of the release.

  • Page 104: Snmp Message Standard

    SNMP traps to one or more network devices that are awaiting these traps. The Trap messages are send to SNMP Manager. The IP address of SNMP Manager is defined in the INI file or using a web browser (in Network Settings). 3Com VCX V7111 VoIP SIP Gateways User Manual...

  • Page 105: Snmp Mib Objects

    These folders or directories can typically be viewed with a MIB Browser, which is a traditional SNMP management tool incorporated into virtually all network management systems. 3Com VCX V7111 VoIP SIP Gateways User Manual...

  • Page 106: Vcx V7111 Gateway Supported Mibs

    Subsequent requests are negotiated by the browser on behalf of the User, so that you do not have to re-enter the username-password for each request, but the request is still authenticated. 3Com VCX V7111 VoIP SIP Gateways User Manual...

  • Page 107: Web Configuration

    Using the Embedded Web Server This section explains how to use the Embedded Web Server. After the initial IP address is set to the Gateway it is possible to connect with the integral web-based configuration application. 3Com VCX V7111 VoIP SIP Gateways User Manual...
  • Page 108 Protocol Management or Advanced Configuration menus. Quick Setup provides a basic set of Gateway configuration settings. An example of the Quick Setup configuration is described in “Quick Setup Procedure” on page 38. Embedded Web Server – Home Page Figure 36 3Com VCX V7111 VoIP SIP Gateways User Manual...
  • Page 109 From this menu you can select the following web pages: Network Settings Channel Settings Configuration File Regional Settings Change Password Set up Gateway Network Parameters To change the Gateway network settings, select the Network Settings tab shown in the following figure. 3Com VCX V7111 VoIP SIP Gateways User Manual...
  • Page 110 TOS, and RTP IP Precedence QOS parameters. Ethernet status (read only). Channel Settings From Channel Settings page, you can modify the following channel associated parameters: Voice Setting Fax/Modem/CID Settings RTP Settings IP Media Settings 3Com VCX V7111 VoIP SIP Gateways User Manual...
  • Page 111 Coefficient file (different file for VCX V7111 FXS and FXO Gateways) Voice Prompt file – Currently not applicable for VCX V7111 Gateways In addition, you can set and view from this page the Gateway internal date and time. 3Com VCX V7111 VoIP SIP Gateways User Manual...
  • Page 112 To change the username and password, select the Change Password tab as shown in the following figure. Change Password Figure 41 Set Up Gateway SIP Parameters To set the Gateway’s SIP parameters, select the Protocol Management tab shown in the following figure. 3Com VCX V7111 VoIP SIP Gateways User Manual...
  • Page 113 Set Up SIP Protocol Definition Parameters Protocol Definition page enables you to define SIP configuration parameters. The SIP protocol definition page includes several sections: General, Proxy Server, and Authentication Parameters shown in Figure 3Com VCX V7111 VoIP SIP Gateways User Manual...
  • Page 114 General, Proxy Server and Authentication Parameters Figure 43 VoIP Coders shown in the following figure. Coders Figure 44 DTMF and Dialing Parameters shown in the following figure. DTMF and Dialing Parameters Figure 45 3Com VCX V7111 VoIP SIP Gateways User Manual...
  • Page 115 Number of Manipulation and Routing Modes Figure 47 Supplementary Services Parameters. These parameters enable Call Hold/Unhold and Call Transfer services shown in the following figure. Supplementary Services Figure 48 Other Miscellaneous parameters shown in the following figure. 3Com VCX V7111 VoIP SIP Gateways User Manual...
  • Page 116 1001 and then the digit 5 is added as a prefix. The third rule deletes all digits except for the last four, from all numbers starting with 123451001 and adds the digit 8 as a prefix. 3Com VCX V7111 VoIP SIP Gateways User Manual...
  • Page 117 IP calls. The table contains pre-configured phone numbers per Gateway port. The number is automatically dialed if phone is picked up (for FXS Gateway) or ring signal is applied to FXO Gateway port, see Figure 3Com VCX V7111 VoIP SIP Gateways User Manual...
  • Page 118 VCX V7111 FXS/FXO Gateway port. This information is sent to remote party, for Tel IP calls. Remote party can use this display information for caller identification. The caller ID string can contain up to 18 characters. Caller ID Table Figure 53 3Com VCX V7111 VoIP SIP Gateways User Manual...
  • Page 119 If security feature is enabled (SecureCallFromIP = 1) the Gateway accepts calls coming only from these addresses. The Phone to IP Routing Table is shown in the following figure. Phone to IP Routing & IP Security Table Figure 54 3Com VCX V7111 VoIP SIP Gateways User Manual...
  • Page 120 Figure 55 Channel Status Menu Selecting the Status & Diagnostics tab and then the Channel Status page provides real time monitoring of the current channel status, as shown in the example in Figure 3Com VCX V7111 VoIP SIP Gateways User Manual...
  • Page 121 Channel Status Figure 56 Active Channels are green. To view the status of a specific channel, click it; a channel status screen appears (Figure 57). Channel Status Detail Figure 57 3Com VCX V7111 VoIP SIP Gateways User Manual...

  • Page 122: Reader's Notes

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

  • Page 123: Chapter 8: Diagnostics

    VCX V7111 FXO refers only to 8FXO and 4FXO Gateways. Diagnostics Overview 3Com provides several diagnostic tools to enable you to identify an error condition and to provide a solution or work around when working with VCX V7111 Gateways. LED Indication of channel activity status, data, control, and LAN status.

  • Page 124: Vcx V7111 Gateway Alarms And Snmp Traps

    This is a short test phase in which the only error detected and reported is failure in initializing hardware components. All Status and Error reports in this self-test phase are reported through Network Interface ports, as well as indicated by the LED status indicators. 3Com VCX V7111 VoIP SIP Gateways User Manual...

  • Page 125: Rs-232 Terminal

    COM1/2 Properties dialog opens. In the COM1/2 Properties dialog, enter the following settings for the serial communication port: Baud Rate: 115,200 bps Data bits: 8 Parity: None Stop bits: 1 Flow control: Hardware 3Com VCX V7111 VoIP SIP Gateways User Manual...

  • Page 126: Syslog Support

    The number with these brackets is known as the Priority and represents both the Facility and Severity. The Priority number consists of one, two, or three decimal integers. Example <37> Oct 11 16:00:15 mymachine su: 'su root' failed for lonvick on /dev/pts/8 3Com VCX V7111 VoIP SIP Gateways User Manual...

  • Page 127: Syslog Operation

    SysLog Operation Sending the SysLog Messages The 3Com 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. 3Com does not provide a SysLog server as several are provided as shareware that can be downloaded from the Internet.

  • Page 128: Possible Common Problems

    INI file is not by mistake XXX.ini.ini. Verify that extension INI is in lowercase letters. TFTP have too short Verify that: timeout Timeout = 2 seconds # of retransmission = 10 3Com VCX V7111 VoIP SIP Gateways User Manual...
  • Page 129 Old INI file was probably loaded. Check which INI file was loaded correct position loaded. This can be done using HyperTerminal screen. The Gateway displays contents of INI file before it began. The INI file is corrupted Check INI file syntax. 3Com VCX V7111 VoIP SIP Gateways User Manual...

  • Page 130: Reader's Notes

    Reader’s Notes 3Com VCX V7111 VoIP SIP Gateways User Manual...

  • Page 131: Chapter 9: Specifications

    Ring states. VCX V7111 24 FXS REN = 2 VCX V7111 2FXS, 4FXS, 4FXO, 8FXS, or 8FXO REN = 5 Over-temperature protection for abnormal situations as shorted lines. Loop-backs for testing and maintenance. 3Com VCX V7111 VoIP SIP Gateways User Manual...
  • Page 132 Group 3 fax relay up to 14.4 Kbps with auto fallback T.38 compliant, real time fax relay Tolerant network delay (up to 9 seconds round trip) Modem Relay Up to 14.4 Kbps V.32bis (optional) 3Com VCX V7111 VoIP SIP Gateways User Manual...
  • Page 133 Four Analog Lines (4FXS Four RJ-11 connectors or 4FXO) Two Analog Lines Two RJ-11 connectors (2FXS) Ethernet 10/100 Base-T, RJ-45 shielded connector RS-232 Console port - DB-9 Front Panel Reset Resets the VCX V7111 3Com VCX V7111 VoIP SIP Gateways User Manual...
  • Page 134 CE Mark (EN 60950, EN 55022, EN 55024) Management Configuration Gateway configuration using Web browser, INI files or local RS-232 console Management and SNMP Maintenance SysLog, per RFC 3164 Local RS-232 terminal Web Management 3Com VCX V7111 VoIP SIP Gateways User Manual...

  • Page 135: Reader's Notes

    Reader's Notes 3Com VCX V7111 VoIP SIP Gateways User Manual...
  • Page 136 3Com VCX V7111 VoIP SIP Gateways User Manual...

  • Page 137: Appendix A: Boot P/Tftp Configuration Utility

    ONFIGURATION TILITY Introduction The 3Com BootP/TFTP Configuration Utility enables easy configuration and provisioning of 3Com products. It contains BootP and TFTP servers with specific adaptations to 3Com requirements. Key Features Internal BootP server supporting hundreds of entities. Internal TFTP server.

  • Page 138: Specifications

    BootP/TFTP Configuration Utility Installation The BootP/TFTP Configuration Utility can be installed on a PC by downloading it from http://www.3com.com/: TrunkPack Boards (TP) VCX V7165 Platforms (IPM) TrunkPack Modules (TPM) MediaPack Series (MP) 3Com VCX V7111 VoIP SIP Gateways User Manual...

  • Page 139: Logging Screen

    Gateway (2FXS, 4FXS, 4FXO, 8FXS, 8FXO, or 24FXS), is installed behind the firewall that blocks BootP broadcast requests. Client Configuration Window The Client Configuration Window (Figure 63 on page 144) shows: All client entities Name IP per entity 3Com VCX V7111 VoIP SIP Gateways User Manual...

  • Page 140: Template Window

    Template Window The Template Window (Figure 64 on page 146) enables you to add, modify, or delete templates. The template includes: Subnet Gateway, TFTP server BootFile INI file Call Agent fields Server IP 3Com VCX V7111 VoIP SIP Gateways User Manual...

  • Page 141: Window Details

    Reset Button – Opens a dialog box, where you can enter an IP of a client. The program sends a Reset command to that client. Edit/Preferences – Selecting Preferences from the Edit menu opens the Preferences window for defining BootP and TFTP parameters. 3Com VCX V7111 VoIP SIP Gateways User Manual...

  • Page 142: Preferences Window

    If not, a new client is added, with the MAC filled out. You must only fill in the remaining fields. Preferences Window In the Preferences window, Figure 62, BootP and TFTP configuration parameters are defined. 3Com VCX V7111 VoIP SIP Gateways User Manual...
  • Page 143 VCX V7111 is installed behind a Firewall that blocks BootP broadcast requests. In a typical application, this feature can be disabled by entering 0 in this field. When selected, several BootP replies are sent to the VCX V7111 immediately after the remote reset command. 3Com VCX V7111 VoIP SIP Gateways User Manual...

  • Page 144: Client Configuration Window

    Client Name – Free text for client description. Template – The template to be used for this client. When a template is selected, its parameters override all of the previous parameters. IP, Subnet, Gateway – Normal IP parameters. 3Com VCX V7111 VoIP SIP Gateways User Manual...

  • Page 145: Templates Window

    Templates window, which provides a fast way to configure a number of clients that have the same parameters (except for the IP address). To use the Templates window, create a template, and then apply the template to the client by selecting it. 3Com VCX V7111 VoIP SIP Gateways User Manual...
  • Page 146 Templates Window Figure 64 3Com VCX V7111 VoIP SIP Gateways User Manual...

  • Page 147: Reader's Notes

    Reader's Notes 3Com VCX V7111 VoIP SIP Gateways User Manual...
  • Page 148 3Com VCX V7111 VoIP SIP Gateways User Manual...

  • Page 149: Appendix B: Rtp/Rtcp Payload Types

    PPENDIX AYLOAD YPES RTP Payload Types are defined in RFC 1889 and RFC 1890. 3Com has added new payload types to enable advanced use of other coder types. These types are reportedly not used by other applications. See the VCX V7165 Digital Media Server Release Notes for the supported coders.

  • Page 150: 3Com Defined Payload Types

    NetCoder 6.4 Kbps NetCoder 7.2 Kbps NetCoder 8.0 Kbps NetCoder 8.8 Kbps Transparent PCM DTMF relay Fax Relay Different packet rates Fax Bypass Modem Bypass RFC 2198 (Redundancy) Same as channel’s voice coder 3Com VCX V7111 VoIP SIP Gateways User Manual...

  • Page 151: Default Rtp/Rtcp/T.38 Port Allocation

    4172 4180 4181 4182 4190 4191 4192 4200 4201 4202 4210 4211 4212 4220 4221 4222 4230 4231 4232 Note the changed port allocation from earlier releases, for channel 5 and above. 3Com VCX V7111 VoIP SIP Gateways User Manual...

  • Page 152: Reader's Notes

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

  • Page 153: Appendix C: Dtmf, Fax , And Modem Modes

    When FaxTransportType= 1 (relay mode), then on detection of fax, the channel automatically switches from the current voice coder to answer tone mode, and then to fax relay mode. The UseT38orFRF11 configuration parameter defines either T.38-compliant 3Com VCX V7111 VoIP SIP Gateways User Manual...

  • Page 154: Configuring Fax/Modem Bypass Mode

    RTP Payload type. When Fax/Modem transmission ends, the reverse switching, from bypass coder to regular voice coder, is carried out. When Fax relay is enabled, V21TransportType must be set to disable (Transparent) mode. 3Com VCX V7111 VoIP SIP Gateways User Manual...

  • Page 155: Supporting V.34 Faxes

    Supporting V.34 Faxes V.34 faxes do not comply with the T.38 relay standard. 3Com therefore provides the optional modes described in “Using Bypass Mechanism for V.34 Fax Transmission “ and “Using Relay Mode for Both T.30 and V.34 Faxes”. Note that the CNG detector is disabled (CNGDetectorMode=0) in all the following examples.

  • Page 156: Reader's Notes

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

  • Page 157: Appendix D: Dhcp Server Configuration

    To configure the Windows NT DHCP server, follow these steps: Start the DHCP Manager on your computer. DHCP Manager opens the following screen: Scope Menu Figure 65 Select Add Reservations from the Scope menu; the Add Reserved Clients screen opens. 3Com VCX V7111 VoIP SIP Gateways User Manual...
  • Page 158 Add Reserved Clients Figure 66 Enter the IP address you want to provide to the 3Com Gateway. The IP address reservation should be inside your DHCP Scope. Enter the hardware MAC address, 12 digits, from your 3Com Gateway. Enter Client name; it can be any free text.
  • Page 159 Active Leases Select Screen Figure 67 The Active Leases screen displays the following selection box: Active Leases Selection Box Figure 68 Click the Properties button. 3Com VCX V7111 VoIP SIP Gateways User Manual...
  • Page 160 012 Host Name (BootP client name such as the 24FXS or other customer-selected name) 066 Boot Server Host Name (Domain name or IP address of the TFTP server) 067 Bootfile Name (Such as ram.cmp) 3Com VCX V7111 VoIP SIP Gateways User Manual...
  • Page 161 Reservation screen under Active Options, as the following figure shows. Active Options Figure 71 12 Select the 003 Router field and click the Value button. 13 Edit the IP Address Array in the IP Address Array Editor screen. 3Com VCX V7111 VoIP SIP Gateways User Manual...

  • Page 162: Reader's Notes

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

  • Page 163: Appendix E: Obtaining Support For Your 3C Om Products

    To take advantage of warranty and other service benefits, you must first register your product at: http://esupport.3com.com/ 3Com eSupport services are based on accounts that are created or that you are authorized to access. Solve Problems Online 3Com offers these support tools: 3Com Knowledgebase —...

  • Page 164: Access Software Downloads

    3Com as a separately ordered product. Separately orderable software releases and licenses are listed in the 3Com Price List and are available for purchase from your 3Com reseller.
  • Page 165 To send a product directly to 3Com for repair, you must first obtain a return materials authorization number (RMA). Products sent to 3Com without authorization numbers clearly marked on the outside of the package will be returned to the sender unopened, at the sender's expense.
  • Page 166 English speakers in Latin America, send e-mail to: lat_support_anc@3com.com US and Canada — Telephone Technical Support and Repair All locations: Network Jacks; Wired or Wireless Network Interface Cards: 1 847-262-0070 All other 3Com products: 1 800 876 3266 3Com VCX V7111 VoIP SIP Gateways User Manual...

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