Multitech MultiVOIP 400 MVP400 User Manual
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Multitech MultiVOIP 400 MVP400 User Manual

Standalone voice/ip gateway proprietary mode
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  • Page 1 Standalone Voice/IP Gateway Models MVP400 Proprietary Mode User Guide...
  • Page 2 Furthermore, Multi-Tech Systems, Inc. reserves the right to revise this publication and to make changes from time to time in the content hereof without obligation of Multi-Tech Systems, Inc. to notify any person or organization of such revisions or changes.

  • Page 3: Table Of Contents

    Contents Chapter 1 - Introduction and Description ............. 5 Introduction ..............................6 Preview of this Guide ..........................6 Typical Application ............................8 Front Panel Description ..........................13 Back Panel Description ..........................14 Power Connector ..........................14 Command Port Connector ......................... 14 10Base-T (Ethernet) Connector ......................
  • Page 4 Viewing Channel Totals ........................57 Reports ..............................58 Chapter 5 - Remote Configuration and Management ........ 59 Introduction .............................. 60 Remote Configuration ..........................60 Modem-Based ........................... 60 LAN-Based ............................62 Remote Management ..........................64 Telnet ..............................64 WEB Management ..........................65 Upgrade Procedures ..........................

  • Page 5: Chapter 1 - Introduction And Description

    Chapter 1 - Introduction and Description...

  • Page 6: Introduction

    MultiVOIP 400 User Guide Introduction Welcome to Multi-Tech's new standalone Voice/IP Gateways which allow analog voice and fax communication over an IP network. Multi-Tech’s new voice/fax over IP gateway technology allows voice and fax communication to ride, with no additional expense, over your existing IP network, which has traditionally been data-only.
  • Page 7 MultiVOIP at the factory, a statement of the limited warranty, information about our Internet presence and user bulletin board service, and space for recording information about your MultiVOIP prior to calling Multi-Tech’s Technical Support. Appendixes...

  • Page 8: Typical Application

    MultiVOIP 400 User Guide Typical Application Before Voice Over IP (VOIP) (voice over the Internet), a corporate office had a data connection to the Internet and a voice connection to the public switched telephone network (PSTN). With VOIP, the two networks can be tied together.
  • Page 9 Chapter 1 - Introduction and Description dialing extension 201, dials extension 202 and is now connected to the local telephone network at the sales office. The corporate caller could then dial any telephone number from the sales office PSTN and this would be a local call. The regional office is set up very similar to the corporate office with the exception that a MVP200 is connected between the network and the PBX.
  • Page 10 MultiVOIP 400 User Guide determine how your PBX is configured. They would have to determine E&M signaling options (dial tone or wink), 2-wire or 4-wire connection, and if the wink option is the signaling option, the wink timer delay in milliseconds. The default is 250 milliseconds. Additional channel setup parameters cover the voice coder, DTMF gain, voice gain, and faxing in the Voice/Fax tab of the Channel Setup dialog box.
  • Page 11 Chapter 1 - Introduction and Description The MultiVOIP Identification defines the MultiVOIP for which you are assigning the phone number. The Type group (Dynamic or Static) defines the type of IP address that is used for this MultiVOIP. The host MultiVOIP requires a static IP address so that the slave units know where the host MultiVOIP is in the network.
  • Page 12 MultiVOIP 400 User Guide our Sales, Marketing, and Regional Offices in our Typical Application, then the router static IP address is enterred in the IP Address field. When the Sales, Marketing, and Regional Offices in our Typical Application are enterred into the Phone Directory Database of the Corporate MultiVOIP, the phone directory database is complete.

  • Page 13: Front Panel Description

    Chapter 1 - Introduction and Description Front Panel Description The front panel contains three groups of LEDs that provide the status of the Ethernet connection, Voice/Fax channels, and general status of the MultiVOIP. The front panel is shown in Figure 1-3, and a description of each LED follows.

  • Page 14: Back Panel Description

    MultiVOIP 400 User Guide Back Panel Description The cable connections for the MultiVOIP are made at the back panel. Connectors include Power, Command Port (RS232), Ethernet (10BASE-T), Voice/Fax Channels (E&M, FXO and FXS). The cable connectors are shown in Figure 1-4 and defined in the following groups. Figure 1-4.

  • Page 15: Specifications

    Chapter 1 - Introduction and Description Specifications • Two 1 Meg by 32 byte at 70 nanosecond SIMM is 8 Mb DRAM Caution: SIMM speed and size cannot be mixed • Two Meg of flash memory Ethernet Port • Single Ethernet Interface - 10BASE-T (twisted pair) keyed RJ-45 connector. Command Port •...
  • Page 16 MultiVOIP 400 User Guide...

  • Page 17: Chapter 2 - Installation

    Chapter 2 - Installation...

  • Page 18: Installing Your Multivoip

    MultiVOIP 400 User Guide Installing Your MultiVOIP The basic steps of installing your MultiVOIP network involve unpacking the units, connecting the cables, and configuring the units using the included management software (MultiVOIP Configuration). The recommended installation process includes three phases that, when completed, result in a fully functional Voice Over IP network.

  • Page 19: Unpacking Your Multivoip

    When the battery starts to weaken, the date and time may be incorrect. If the battery fails, the board must be sent back to Multi-Tech Sytems for battery replacement. The E&M, FXS, and Ethernet ports are not designed to be connected to a Public Telecommunication Network.

  • Page 20: Cabling Procedure

    MultiVOIP 400 User Guide Cabling Procedure Cabling involves connecting the host MultiVOIP to your LAN and telephone equipment. 1. If you are connecting any Voice/Fax Channel to an E&M trunk other than type 2, perform the E&M Jumper Block Positioning procedure which appears later in this chapter before connecting power to the unit.

  • Page 21: E&M Jumper Block Positioning Procedure

    Chapter 2 - Installation E&M Jumper Block Positioning Procedure A jumper block exists for each voice/fax channel. The jumper block is to the right of each set of channel jacks. The jumper block contains 8-pairs of pins. The jumper plug fits over three pairs of pins on the jumper block.
  • Page 22 MultiVOIP 400 User Guide...

  • Page 23: Chapter 3 - Software Loading And Configuration

    Chapter 3 - Software Loading and Configuration...

  • Page 24: Configuring Your Host Multivoip

    MultiVOIP 400 User Guide Configuring Your Host MultiVOIP The following software loading procedure does not provide every screen or option in the loading process. The assumption is that a technical person with a thorough knowledge of Windows and the software loading process is doing the installation. If you are installing a MultiVOIP behind a firewall, add the following UDP ports to your firewall.
  • Page 25 Chapter 3 - Software Loading and Configuration 5. The Welcome dialog box displays. Click Next to continue. 6. Follow the on-screen instructions to install your MultiVOIP software. You may choose the Destination Location of your MultiVOIP software or you can accept the default destination by clicking Next.
  • Page 26 MultiVOIP 400 User Guide 9. The following message displays: Click No to continue. 10. From the MultiVOIP program group, double-click Upgrade Software. Click Yes to continue. 11. The IP Protocol Default Setup dialog box displays. The default Frame Type is TYPE_II. If this does not match your IP network, select the Frame Type from the Frame Type list.
  • Page 27 Chapter 3 - Software Loading and Configuration you want to configure from the Select Channel list. 14. The Interface group defaults to FXS (Loop Start). Select the interface option to correspond to the interface type being connected to the Voice/Fax connector on the back panel of the MultiVOIP.
  • Page 28 DTMF tone duration in milliseconds. 100 is entered by default. Note: Only change the DTMF gain under the direction of Multi-Tech Technical Support. 18. The Fax group enables you to send and receive faxes on the selected voice/fax channel. You can select the maximum baud rate for faxes from the list in the Fax group.
  • Page 29 Chapter 3 - Software Loading and Configuration 20. The Billing/Security tab displays the parameters for automatic disconnection, billing options, and dialing options. 21. You can set up billing options for inbound and outbound calls by selecting them in the Billing Options group and then entering the charge in cents per number of seconds.
  • Page 30 MultiVOIP 400 User Guide Click OK. Each component is loaded in succession. 26. From the Program Group, double-click MultiVOIP Configuration. Click Phone Book. The Phone Directory Database dialog box displays.The Phone Directory Database dialog box displays. You will build your personalized MultiVOIP Phone Directory in the following steps. The MultiVOIP configured as a “Host”...
  • Page 31 Chapter 3 - Software Loading and Configuration 30. In the MultiVOIP Identification group, enter the IP address of the Host MultiVOIP in the IP Address box. For example, 204.22.122.118. Then obtain the 12-digit Node ID# (0008005xxxxx) from the ID plate on the back panel of the MultiVOIP and enter this number in the Ethernet Node ID box.
  • Page 32 MultiVOIP 400 User Guide 36. Click OK and you are returned to the Phone Directory Database dialog box, which now includes the second number and related information in the Phone Number list. Note: If only Channel 1 is active, you must enter two phone numbers. The first number will be the local MultiVOIP phone number for Channel 1, and the second number will be the client MultiVOIP phone number for Channel 1.

  • Page 33: Configuring Your Client Multivoips

    Chapter 3 - Software Loading and Configuration Configuring Your Client MultiVOIPs The client MultiVOIPs can be another MVP400, MVP800, MVP200, or a MultiVOIP 100-series. If your client MultiVOIP is an MVP400, perform the following software loading procedure. If your client MultiVOIP is an MVP800, MVP200, or MultiVOIP 100-series, connect your command port cable and power up the unit according to the cabling procedure in the appropriate MultiVOIP Quick Start.
  • Page 34 MultiVOIP 400 User Guide 5. The Channel Setup dialog box displays. The Channel Setup dialog box defines the channel interface, voice coder, fax parameters, and regional telephone parameters for each channel. Configure each channel for the type of interface you are connecting to. To change the channel number, select the channel you want to configure from the Select Channel list.
  • Page 35 DTMF tone duration in milliseconds. 100 is entered by default. Note: Only change the DTMF gain under the direction of Multi-Tech Technical Support. 10. The Fax group enables you to send and receive faxes on the selected voice/fax channel. You can select the maximum baud rate for faxes from the list in the Fax group.
  • Page 36 MultiVOIP 400 User Guide channel. If echo cancellation is enabled, the MulitVOIP 400 will remove echo delay, which improves the quality of sound. The Forward Error Correction (FEC) check box defines whether forward error correction is enabled for this voice channel. The FEC feature allows some of the voice packets that were corrupted or lost to be recovered.
  • Page 37 Chapter 3 - Software Loading and Configuration 17. The following dialog box displays. Click OK. Each component is loaded in succession. 18. From the Program Group, click MultiVOIP Configuration. Click Phone Book. The Phone Directory Database dialog box displays. In the Database Type group, click the Client option. The Host IP Address box becomes active. 19.
  • Page 38 MultiVOIP 400 User Guide the setup is written to the MultiVOIP, the unit reboots. 23. Verify that the BTG LED on the MultiVOIP is off after the download is complete. This may take several minutes as the MultiVOIP reboots. 24. You are returned to the main menu. Your MultiVOIP is operational at this time. Repeat this procedure for each of the client units.

  • Page 39: Deploy The Voip Network

    Chapter 3 - Software Loading and Configuration Deploy the VOIP Network Deploying the VOIP network involves the VOIP Administrator developing the VOIP Dialing Directory and deploying the preconfigured client MultiVOIPs to their remote sites. The remote site administrators need only connect power to the preconfigured MultiVOIP, connect it to their Ethernet LAN and predefined telephone equipment, and then wait for the phone directory database to be downloaded.
  • Page 40 MultiVOIP 400 User Guide If you are connecting the station side of a telephone switch (PBX) to your MultiVOIP, connect one end of an RJ11 phone cord to the Voice/Fax Channel 1 FXO connector on the back of the MultiVOIP and the other end to the phone jack. If you are connecting an E&M trunk from a telephone switch to your MultiVOIP, connect one end of an RJ45 phone cord to the Voice/Fax Channel 1 E&M connector on the back of the MultiVOIP and the other end to the trunk.

  • Page 41: Chapter 4 - Multivoip Software

    Chapter 4 - MultiVOIP Software...

  • Page 42: Introduction

    MultiVOIP User Guide Introduction This chapter describes the MultiVOIP software to show you how to make changes to the configuration of your MultiVOIP. The major configuration parameters were established during the loading of the software (Chapter 3), and the MultiVOIP software and configuration utilities allow you to make changes to that initial configuration.

  • Page 43: Multivoip Configuration

    Chapter 4 - MultiVOIP Software MultiVOIP Configuration The MultiVOIP Setup menu consists of 10 buttons in which you can point and click, an Events window in the middle of the menu, and a status bar at the bottom of the menu. The 10 buttons allow you to display and change the voice channels and IP protocol parameters, display and manage the Phone Book listing, define the output of the MultiVOIP, view statistics and call progress, and change features such as SNMP Agent, Telnet Server, WEB Server, and assign a MultiVOIP password.

  • Page 44: Changing Channel Parameters

    MultiVOIP User Guide Changing Channel Parameters The channel parameters include the interface type and its options, voice and fax settings, billing and security options, and voice communications for the region of the world that the MultiVOIP resides in. The Channel Setup dialog box is accessed from the Main menu. Interface Tab The Interface tab defines the parameters related to the physical interface of the voice/fax channel.
  • Page 45 Chapter 4 - MultiVOIP Software before mapping the dialed digits to an entry in the Phone Directory Database. If too much time elapses between digits and the wrong numbers are mapped, you hear a rapid busy signal. If this happens, hang up and dial again. This option is available for all interface types. In the Flash Timer box, enter the time, in milliseconds, for the duration of flash hook signals output on the FXO or FXS interface.

  • Page 46: Voice/Fax Tab

    Refer to user documentation for the fax machine. The Fax Volume setting controls the output level of the fax tones, and this setting should be changed only under the direction of Multi-Tech’s Technical Support personnel. See Chapter 6 - Warranty, Service and Tech Support.
  • Page 47 Chapter 4 - MultiVOIP Software by the voice channel. Billing/Security Options can be used to track the cost of Inbound and/or Outbound calls on any of the three interfaces (FXO, FXS, or E&M). The amount to be charged in cents is entered in the Charge ( ) Cents box together with the associated time duration in the Per ( )Seconds box.

  • Page 48: Regional Tab

    MultiVOIP User Guide Regional Tab The Regional tab controls the voice communications for the country or region in which the MultiVOIP is being used. From the Country/Region list, you can select the country or region for which you are configuring the MultiVOIP.

  • Page 49: Changing The Phone Directory Database

    Chapter 4 - MultiVOIP Software Changing the Phone Directory Database The Phone Directory Database dialog box displays all the phone numbers in your MultiVOIP network. The database displays the phone numbers in numerical order with the IP Address, Channel assignment, and Description. Access this database by clicking Phone Book on the MultiVOIP Main menu.
  • Page 50 MultiVOIP User Guide Server is using dynamic addressing (the ISP is assigning the Proxy Server IP address), then this client MultiVOIP will be defined as using dynamic addressing and the IP Address box will be unavailable. If a Proxy Server with a static IP address is in front of the client MultiVOIP, then the IP Address box must contain the address of the Proxy Server.

  • Page 51: Changing Ip Parameters

    Chapter 4 - MultiVOIP Software Changing IP Parameters The IP Setup dialog box establishes the IP addressing for the local Ethernet LAN, defines the Internet gateway address, and if a proxy server is used to connect a LAN to the Internet, global-to-local IP address translation is required.
  • Page 52 MultiVOIP User Guide MultiVOIP located behind a Proxy Server at the static IP address. This static IP address will be used in the Phone Directory Database when assigning directory numbers to this MultiVOIP. The Global IP Address box must contain the static IP address of the WAN port of the Proxy Server. The Local IP Address box must contain the local IP address of the MultiVOIP.

  • Page 53: Viewing Statistics

    Chapter 4 - MultiVOIP Software Viewing Statistics The Statistics dialog box enables you to view statistics for major events of the MultiVOIP operation. This dialog box is accessed by clicking on the Statistics button on the Main MultiVOIP menu. Statistics can be a helpful troubleshooting tool. For example, viewing the Voice Channel statistics you can see the attempted and completed calls, call duration, average call length, bytes/packets send and received, and so on.

  • Page 54: Snmp Statistics

    MultiVOIP User Guide For the most part these statistics are informational, and their use as a troubleshooting tool will be contingent on the applications running in the upper layers. For example, if you were having problems connecting to the MultiVOIP’s web server, you would look under the TCP section to see if any connections are being established.

  • Page 55: Others Setup

    Chapter 4 - MultiVOIP Software Others Setup Clicking Others on the Main menu displays the Others Setup dialog box. This dialog box lets you to enable SNMP Agent (the default is disabled ) and set up all the necessary parameters; enable or disable various remote configuration methods such as TFTP (Trivial File Transfer Protocol) Server, Web Server, Dumb Terminal, and Telnet Server;...

  • Page 56: Viewing Call Progress

    MultiVOIP User Guide Viewing Call Progress The Call Progress dialog box displays the status of a call in progress. This dialog box is accessed from the MultiVOIP Setup menu by clicking Call Progress. The ratio of Packets Lost versus Packets Received provides a general indication of the integrity of the Internet connection.

  • Page 57: Viewing Logs

    Chapter 4 - MultiVOIP Software Viewing Logs The Log Entries dialog box displays a chronological history of all calls into and out of this unit. Click Logs in the Statistics dialog box to open this dialog box. The Log Entries dialog box displays each call as a sequentially numbered Event with the date, time, duration of the call, the status of the call (Successful or Unsuccessful), Mode (Voice or Fax), and the from and to numbers.

  • Page 58: Reports

    MultiVOIP User Guide Reports A report of the contents of the Log Entries dialog box can be generated using the Windows Notepad accessory and then printed from your local PC. The report is generated by entering the To and From dates in the Report Generation dialog box and then clicking Generate.

  • Page 59: Chapter 5 - Remote Configuration And Management

    Chapter 5 - Remote Configuration and Management...

  • Page 60: Introduction

    MultiVOIP 400 User Guide Introduction This chapter provides procedures for viewing or changing the configuration of a remote unit. Two methods are provided to access a remote unit. The first method is modem based and the second method is using IP. Within the IP method, three applications can be used: 1) LAN-Based using TFTP (Trivial lFile Transfer Protocol), 2)Telnet as a client application, or 3) a standard web browser on the Internet.
  • Page 61 Chapter 5 - Remote Configuration and Management Verify that the Communication Type is set for COM Port and the Select Port box is set for the COM port of your local PC. In the Dial String box, enter the AT command for dialing (ATDT) plus the phone number of the remote MultiVOIP.

  • Page 62: Lan-Based

    MultiVOIP 400 User Guide LAN-Based The LAN-based remote configuration requires a Windows Sockets compliant TCP/IP stack. TCP/IP protocol software must be installed and functional before the configuration program can be used. You must assign an Internet (IP) address for the PC and for each node that will be managed by the configuration program.
  • Page 63 Chapter 5 - Remote Configuration and Management The MultiVOIP Setup dialog box displays. This is the dialog box of the remote MultiVOIP. After you have changed the configuration of the remote MultiVOIP, click Download Setup to update the configuration. The remote MultiVOIP will be brought down, the new configuration written to the unit, and the unit will reboot.

  • Page 64: Remote Management

    MultiVOIP 400 User Guide Remote Management This section describes typical client applications that can be used to configure the MultiVOIP remotely. It is important to note that although any subsequent changes to configuration can be made using these applications, the initial setup and configuration of the MultiVOIP must be done on the local PC, using the MultiVOIP software provided with your unit.

  • Page 65: Web Management

    Chapter 5 - Remote Configuration and Management Voice over IP Configuration Selecting Option 1 displays the main menu, which allows further configuration options. These options include Protocol Stacks (option 1), Applications (option 2), System Information (option 3), and Voice Channels (option 4). For further descriptions of these options, refer to Chapter 4 - MultiVOIP Software.
  • Page 66 MultiVOIP 400 User Guide If a Password was entered in the Applications Setup dialog box, then enter the password and click Enter. From here, you can access all the configuration options. Refer to Chapter 4 - MultiVOIP Software, for a description of the various options.

  • Page 67: Upgrade Procedures

    IP address and voice channel configurations. These settings must be put back in place after upgrading the software. Multi-Tech also recommends that you click Print in the Phone Directory Database dialog box to print a copy of the phone directory contents.
  • Page 68 MultiVOIP User Guide Enter your current configuration in the Channel Setup dialog box. Click OK when finished. The MultiVOIP firmware and coders download, then the MultiVOIP reboots.

  • Page 69: Manual Upgrade Procedure

    Chapter 4 - MultiVOIP Software Manual Upgrade Procedure Follow this procedure only if you want to manually upgrade your MultiVOIP. Note: Steps 4-8 can be performed locally via the command port or IP. 1. Run “MultiVOIP configuration” from your old version of MultiVOIP software. Note the current settings.
  • Page 70 MultiVOIP 400 User Guide...

  • Page 71: Chapter 6 - Warranty, Service, And Tech Support

    Chapter 6 - Warranty, Service, and Tech Support...

  • Page 72: Introduction

    Internet. Limited Warranty Multi-Tech Systems, Inc., (hereafter “MTS”) warrants that its products will be free from defects in material or workmanship for a period of two years from date of purchase, or if proof of purchase is not provided, two years from date of shipment.

  • Page 73: Recording Multivoip Information

    Repair Accounting department at (763) 785-3500 in the U.S.A., or a nearby Multi-Tech office which is listed on the “Multi-Tech Corporate Offices” sheet in this International Distributor Resource Kit.

  • Page 74: Tech Support

    MultiVOIP 400 User Guide Tech Support Multi-Tech has an excellent staff of technical support personnel available to help you get the most out of your Multi-Tech product. If you have any questions about the operation of this unit, call 1-800-972- 2439.

  • Page 75: Appendixes

    Appendixes...

  • Page 76: Appendix A - Tcp/Ip (Transmission Control Protocol/Internet Protocol) Description

    First, choose a domain name for your company. A domain name is the unique Internet name, usually the name of your business, that identifies your company. For example, Multi-Tech’s domain name is multitech.com ( .com indicates this is a commercial organization; .edu denotes educational organizations, .gov denotes government organizations).
  • Page 77 Appendix B - Cabling Diagrams circuit establishment and termination. UDP’s primary function is to add a port number to the IP address to provide a socket for the application. The Application Layer protocols are examples of common TCP/IP applications and utilities, which include: •...
  • Page 78 You first choose a domain name for your company. A domain name is the unique Internet name, usually the name of your business, that identifies your company. For example, Multi-Tech’s domain name is multitech.com (where .com indicates this is a commercial organization; .edu denotes educational organizations, .gov denotes government organizations).

  • Page 79: Appendix B - Cabling Diagrams

    Appendix B - Cabling Diagrams Appendix B - Cabling Diagrams Command Port Cable 21 20 LAN Cable Circuit Signal Name TD+ Data Transmit Positive TD- Data Transmit Negative RD+ Data Receive Positive RD- Data Receive Negative Voice/Fax Channel Connectors Pin Connections E&M Description Description...
  • Page 80 MultiVOIP 400 User Guide Magix 400 E&M Tie Card...

  • Page 81: Appendix C - Regulatory Information

    Appendix C - Regulatory Information Appendix C - Regulatory Information Class A Statement FCC Part 15 NOTE: This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a commercial environment.
  • Page 82 7. No repairs are to be made by you. Repairs are to be made only by Multi-Tech Systems or its licensees. Unauthorized repairs void registration and warranty.

  • Page 83: Canadian Limitations Notice

    Appendix C - Regulatory Information Canadian Limitations Notice Ringer Equivalence Number Notice: The ringer equivalence number (REN) assigned to each terminal device provides an indication of the maximum number of terminals allowed to be connected to a phone interface. The termination on an interface may consist of any combination of devices subject only to the requirement that the sum of the ringer equivalence numbers of all the devices does not exceed 5.
  • Page 84 MultiVOIP 400 User Guide...

  • Page 85: Glossary

    Glossary...
  • Page 86 MultiVOIP 400 User Guide Access: The T1 line element made up of two pairs of wire that the telephone company brings to the customer premises. The Access portion ends with a connection at the local telco (LEC or RBOC). Accunet Spectrum of Digital Services (ASDS): The AT&T 56K bps leased (private) line service. Similar to services of MCI and Sprint. ASDS is available in n x56/64K bps, where n =1, 2, 4, 6, 8, 12.
  • Page 87 Glossary Bell Operating Companies (BOC): The family of corporations created during the divestiture of AT&T. BOCs are independent companies which service a specific region of the US. Also called Regional Bell Operating Companies (RBOCs). Bell Pub 41450: The Bell publication defining requirements for data format conversion, line conditioning, and termination for direct DDS connection.
  • Page 88 MultiVOIP 400 User Guide Circuit switching: The temporary connection of two or more communications channels using a fixed, non-shareable path through the network. Users have full use of the circuit until the connection is terminated. Clear Channel: A transmission path where the full bandwidth is used (no bandwidth needed for signaling, carrier framing or control bits). A 64K bps digital circuit usually has 8K bps used for signaling.
  • Page 89 Glossary Digital Loopback: A technique used for testing the circuitry of a communications device. Can be initiated locally, or remotely (via a telecom- munications device). The tested device decodes and encodes a received test message, then echoes the message back. The results are compared with the original message to determine if corruption occurred en route.
  • Page 90 MultiVOIP 400 User Guide Failed Seconds: A test parameter where the circuit is unavailable for one full second. Failed Signal: A T1 test parameter logged when there are more than 9 SES (Severely Errored Seconds). Fax (facsimile): Refers to the bit-mapped rendition of a graphics-oriented document (fax) or to the electronic transmission of the image over telephone lines (faxing).
  • Page 91 Glossary Hexadecimal: A base 16 numbering system used to represent binary values. Hex uses the numbers 0-9 and the letters A-F: usually notated by an "h" (for example, "4CF h", read "four charley fox, hex"). The result is that one hex digit represents a 4-bit value. Implicit congestion management: A method of informing the terminal that the network is busy.
  • Page 92 MultiVOIP 400 User Guide Line Termination (LT): The electronics at the ISDN network side of the user/network interface that complements the NT1 at the user side. The LT and the NT1 together provide the high-speed digital line signals required for BRI access. Listed Directory Number (LDN): The main number assigned by the telco;...
  • Page 93 Glossary Object-Orientated: A method for structuring programs as hierarchically organized classes describing the data and operations of objects that may interact with other objects. Office Channel Unit - Data Port (OCU-DP): The CO channel bank used as the interface between the customer's DSU and the channel bank. Off-hook: The condition of a device that has accessed a phone line, with or without using the line.
  • Page 94 MultiVOIP 400 User Guide Protocol: 1) A set of semantic and syntactic rules that determines the behavior of functional units in achieving communication. 2) In Open Systems Interconnection architecture, a set of semantic and syntactic rules that determine the behavior of entities in the same layer in performing communication functions.
  • Page 95 Glossary Serial Port: The connector on a PC used to attach serial devices (those that need to receive data one bit after another), such as a mouse, a printer or a modem. This consists of a 9- or 25-pin connector that sends data in sequence (bit by bit). Serial ports are referred to as "COMx" ports, where x is 1 to 4 (COM1 through COM4).
  • Page 96 MultiVOIP 400 User Guide T1 Framing: To digitize and encode analog voice signals requires 8000 samples per second (twice the highest voice frequency of 4000 Hz). Encoding in an 8-bit word provides the basic T1 block of 64K bps for voice transmission. This "Level 0 Signal, as its called, is represented by "DS-0", or Digital Signal at Level 0.
  • Page 97 Glossary V.54: The ITU-T standard for local and remote loopback tests in modems, DCEs and DTEs. The four basic tests are: • local digital loopback (tests DTE send and receive circuits), • local analog loopback (tests local modem operation), • remote analog loopback (tests comm link to the remote modem), and •...

  • Page 98: Index

    HTTP ..............77 TCP/IP ............64, 76 Technical support ..........74 Internet Telnet .............. 64, 77 Multi-Tech's Web site ......... 74 Proxy Server Configuration ....... 65 Internet Protocol (IP) ..........78 Traceroute ............. 77 IP ................78 Typical application ........... 8 LEDs Uninstall Proxy Server Configuration ....
  • Page 99 Index Warranty ..............72 WEB Server ............65...

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