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Eicon Technology Diva T/A Reference Manual

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DIVA T/A ISDN Modem
Reference Guide

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  • Page 1 DIVA T/A ISDN Modem Reference Guide...
  • Page 2 Fourth Edition (July 1998) 206-193-04 DIVA T/A ISDN Modem is a trademark of Eicon Technology Corporation. Microsoft, Windows, and Windows NT are registered trademarks of Microsoft Corporation. CompuServe is a registered trademark of CompuServe Incorporated. Hayes is a registered trademark of Hayes Microcomputer Products, Inc.

  • Page 3: Table Of Contents

    Table of Contents What is ISDN?..................4 ISDN stands for Integrated Services Digital Network......4 ISDN Communication Channels............6 Connecting to ISDN - BRI and PRI ............ 7 What is EZ-ISDN/IOC? ............... 8 What is AutoSPID? ................9 Non-Initializing Terminal Mode............10 What is Multilink PPP?..............

  • Page 4: What Is Isdn

    ISDN, there is no analog conversion. ISDN transmits data digitally, resulting in a very clear transmission quality. There is none of the static and noise of analog transmissions that can slow transmission speed. DIVA T/A ISDN Modem Reference Guide 4...
  • Page 5 Videoconferencing is an emerging ISDN application that's growing fast in popularity and ISDN is currently the only practical way of making it happen. DIVA T/A ISDN Modem Reference Guide 5...

  • Page 6: Isdn Communication Channels

    The sender/receiver can be any type of terminal, printer, computer or other device that supports an interface to the network. DIVA T/A ISDN Modem Reference Guide 6...

  • Page 7: Connecting To Isdn - Bri And Pri

    There is no single transmission rate defined for primary rate access. In North America and Japan, for example, primary rate interface is based upon the T1 rate (defined in detail shortly) of 1.544 Mbps. In Europe, by comparison, the rate is 2.048 Mbps. DIVA T/A ISDN Modem Reference Guide 7...

  • Page 8: What Is Ez-Isdn/Ioc

    Forwarding, 3-way Call) available on DIVA T/A models equipped with analog device ports. Note: If you want to use DIVA T/A’s Calling Features, ask your ISDN service provider for the values of the Feature Keys. You need these values to ensure the DIVA T/A has full access to the features.

  • Page 9: What Is Autospid

    AutoSPID, SPID guessing, or configured manually, ISDN will fail to initialize (the D-LED will flash). The only way to use the DIVA T/A without entering SPIDs, is to configure the ISDN numbers for Non-Initializing Terminal mode. DIVA T/A ISDN Modem Reference Guide 9...

  • Page 10: Non-Initializing Terminal Mode

    (North America only) Non-Initializing Terminal (NIT) mode is a new National ISDN protocol feature which enables the DIVA T/A to operate without SPIDs. Your ISDN provider must support NIT mode to be able to use To configure the DIVA T/A for Non-Initializing Terminal mode,...

  • Page 11: What Is Multilink Ppp

    DIVA T/A supports COM port rates of up to 230.4 kbps. However, some computer COM ports are limited to 115.2 kbps. If you want to use your DIVA T/A at its maximum speed, install a “fast COM port” card (UART 16650 based).

  • Page 12: What Is Bacp/Bod And Dba

    DIVA T/A supports the Bandwidth Allocation Control Protocol (BACP) and Bandwidth on Demand (BOD). These two features combine to allow the DIVA T/A to establish multilink sessions that provide larger amounts of bandwidth than that offered over a single dialup channel. Such multilink sessions are established according to procedures defined in the Internet Engineering Task Force (IETF) PPP Multilink specification (RFC 1717).

  • Page 13: What Is Always On / Dynamic Isdn (Ao/Di)

    The data connection continues on the D-channel until a B-channel is available, if needed. • As B-channels are invoked only when additional bandwidth is needed, connection costs are significantly reduced. DIVA T/A ISDN Modem Reference Guide 13...

  • Page 14: What Is Data Compression

    (for example, the PC compression may reduce the number of bytes that go through the serial interface, the PC has the quicker CPU, etc.). The DIVA T/A compression negotiation, however, will assume control should no compression be detected or the initial negotiation fail.

  • Page 15: At Commands

    AT prefix are ignored. This is programmable through S-Register 3. • The DIVA T/A recognizes the backspace character for editing. When echo is enabled, a backspace or delete is echoed as a backspace character followed by a space character, and another backspace.

  • Page 16: At Command Groups

    Most commands entered with parameters out of range will not be accepted and the ERROR response will be returned to the DTE. • The next command will only be accepted by the DIVA T/A once the previous command has been fully executed. AT Command Groups...

  • Page 17: Alphabetical List Of Supported At Commands

    Commands The following table summarizes the AT Commands supported by the DIVA T/A. Go to the specified page number for more information. Note: Static parameters are preceded by an asterisk “ *”. Changes made to static parameters do not take effect immediately (this contrasts with “dynamic”...
  • Page 18 (applicable to North America only) AT!C7=n *ISDN SPID Number for second B-channel (applicable to North America only) AT!D1=n Specify DTE Speed. AT!D2=n Specify Databits length AT!D3=n Specify Parity AT!D4=n Specify number of Stopbits. DIVA T/A ISDN Modem Reference Guide 18...
  • Page 19 *ISDN Number for first B-channel AT!N2=n *ISDN Number for second B-channel AT!N3=n *ISDN Subaddress for first B-channel AT!N4=n *ISDN Subaddress for second B-channel AT!On Default Outgoing Call Type AT!T1=n Incoming ISDN Call on first B-channel DIVA T/A ISDN Modem Reference Guide 19...
  • Page 20 Specifies the local ISDN prefixes to be used. AT!X5=n Specifies the X.25 default window size. AT!X6=n Specifies the X.25 maximum window size AT!X7=n Specifies the X.25 default packet size AT!X8=n Specifies the X.25 maximum packet size 59 DIVA T/A ISDN Modem Reference Guide 20...
  • Page 21 Specifies the 2nd B-channel Opening AT!X14=n Threshold Specifies the 2nd B-channel Closing AT!X15=n Threshold AT!X16=n Strips the area code from phone numbers. AT!X17=n Specifies the X.25 transmit queue threshold. AT!X21=n Specifies the Logical Connection Number. DIVA T/A ISDN Modem Reference Guide 21...
  • Page 22 Exit the monitor mode. Note: This command is only available when you are in monitor mode; it is not available when you are in command mode. AT@TIME= Set Time AT@TIME? Current Time DIVA T/A ISDN Modem Reference Guide 22...
  • Page 23 Start or View LAPD Trace AT$VM Start or View Mail Trace AT$VP Start or View PPP Trace AT$VQ Start or View Q931 Trace AT$VX Start or View an X.25 trace on the D-channel DIVA T/A ISDN Modem Reference Guide 23...
  • Page 24 Set Billing Interval Timer AT%P8=n Dynamic Bandwidth Allocation AT%P9=n Second B-channel Connection Retries AT%A2 *Protocol Control AT%A95=n Incoming Data Call Answer AT&Cn Data Carrier Detect AT&Dn Data Terminal Ready AT&F Loading Factory Profile DIVA T/A ISDN Modem Reference Guide 24...
  • Page 25 *Internal Dial Access (Supplementary Service) AT*Fn *Analog Device Ring Frequency AT*Kn=v *Analog Device Calling Features AT*M=v Visual Message Waiting Indicator Refresh Time. AT*Pn *Analog Device Country Specific Parameters AT*Rn=v *Analog Device Ring Type DIVA T/A ISDN Modem Reference Guide 25...
  • Page 26 View Dynamic Parameters AT>VCP View Protocol Parameters AT>VCS View Static Parameters AT>VD View Link and Connection Status Information AT>VDD Initialization Status Display (North America Only) AT>VDC View Connection Status AT>VDL View Link States DIVA T/A ISDN Modem Reference Guide 26...
  • Page 27 View Stored Profile n AT>VT View Stored Phone Numbers AT>Z Restart the DIVA T/A AT>? Last AT Command Result Explained View Last Accessed S Switch AT\Vn Connect Message Control Re-execute Previous Command Escape Sequence DIVA T/A ISDN Modem Reference Guide 27...

  • Page 28: General At Commands

    Return Online: In the online data mode, the DIVA T/A is ready to send and receive data, providing you are connected. Normally, the DIVA T/A remains in this mode until your computer sends the data mode escape sequence (+++) or until the call is terminated.
  • Page 29 General AT Commands—Continued Command Description AT@DATE= Set Date: Sets the date on the DIVA T/A. This command is useful when the DIVA T/A sends the call ID to a telephone with Call Display (North America only). Format is mm-dd-yy Note: This command is only available on models equipped with analog device ports.
  • Page 30 Last AT Command Result Explained: The AT>? Command reports the result of the last AT command issued. This command is useful for debugging long strings of AT commands and for determining which command was rejected and why. DIVA T/A ISDN Modem Reference Guide 30...
  • Page 31 (+++) and wait another second. Its value is stored in S-Register 2. The default value of the escape character as stored in S-Register 2 is ‘+’. DIVA T/A ISDN Modem Reference Guide 31...

  • Page 32: Isdn Configuration Commands

    ISDN Configuration Commands Use the following commands to configure your DIVA T/A for ISDN. Command Operation AT!C1=n ISDN Switch Type. Specifies the ISDN Switch Type. For North American Firmware: National ISDN AT&T 5ESS Custom n=9 (Default for North America) Auto-detect switch type. The DIVA T/A automatically determines the correct switch type to be used (National ISDN or AT&T 5ESS Custom).
  • Page 33 Specifies whether the first B-channel in the ISDN settings is set to Non-Initializing. Disable Non-initializing mode (default) Enable Non-initializing mode Note: These parameters are static. They do not take effect until you restart your DIVA T/A. AT!C5=n Enable/Disable Non-Initializing mode (second B channel): (North America only).
  • Page 34 If switch type is EuroISDN or TPH, A-law is typically used; if switch type is INS-Net64, NI-1, or 5ESS, µ law is used. µ law A-law Note: This parameter is static. It does not take effect until you restart your DIVA T/A. DIVA T/A ISDN Modem Reference Guide 34...
  • Page 35 ISDN Number for 1 B-channel. Your local ISDN number as assigned by your telephone company. The DIVA T/A uses this number to identify itself when placing calls and to recognize incoming calls. This number is a string with up to 20 characters. Valid characters are: 0-9, *, and #.
  • Page 36 (when a user enters an ATD command without a special modifier). If a modifier is used, it will override this parameter. Data call Data over voice bearer capability call DIVA T/A ISDN Modem Reference Guide 36...

  • Page 37: Com Port Configuration Commands

    COM Port Configuration Commands Use the following AT commands to configure the DIVA T/A’s COM port. Command Description Local Echo: Specifies whether command echo is ATEn enabled or disabled on your computer. Where: n=0 Disable local echo n=1 Enable local echo (default) Note: If you do not see commands entered on your screen, enable command echo.
  • Page 38 Description ATXn Extended Result Codes: Specifies which subset of the result messages will be used by the DIVA T/A to inform the DTE of the results from commands. Provide basic result codes: sends only OK, CONNECT, RING, NO CARRIER, ERROR, and NO ANSWER.
  • Page 39 Disables flow control Enables RTS/CTS flow control (default) Enables XON/XOFF flow control Enables both RTS/CTS and XON/XOFF flow control DIVA T/A ISDN Modem Reference Guide 39...
  • Page 40 AT\Vn Connect Message Control: This command controls the format of connection messages Upon connection, the DIVA T/A reports the DTE speed only; for example, CONNECT 19200 (default). Upon connection, the DIVA T/A reports the DCE speed, the protocol, and the DTE speed. (same as ATW2).

  • Page 41: S Register Commands

    Rings to Auto-Answer: Allows you to enable or disable auto-answer. Setting a value other than “0” instructs the DIVA T/A to auto-answer after n rings. A value of “0” instructs the DIVA T/A to disable the auto- answer mode. Specify a value between 0-255 (default is 0).
  • Page 42 0-127 (default is ASCII 010 line feed). ATS5=n Backspace Character Sets the backspace character used for command line editing. n can be a value between 0-32 (default is ASCII 008 backspace). DIVA T/A ISDN Modem Reference Guide 42...

  • Page 43: Call Control Commands

    Call Control Commands Command Description Answer Calls: Instructs the DIVA T/A to accept an incoming call. AT!T1=n Incoming Call Assignment (first B-channel): Specifies the type of incoming ISDN calls that DIVA T/A can accept on the first B-channel. Accept Data Calls Only Specifies that DIVA T/A should only accept data calls.
  • Page 44 • Both PPP and Multilink PPP require that a PPP communications stack be installed on your computer. • Both the local terminal adapter (DIVA T/A) and the remote device must be set to the same protocol. • If your workstation is configured as a Windows for Workgroups Remote Access Service (RAS) client, you must configure the V.120 rate adaption...
  • Page 45 (accepted or rejected). All incoming data calls can be accepted either by the DIVA T/A (ATS0=1) or by the application (default). All incoming data calls are rejected upon receipt AT&Zn=v Store Telephone Number: Specifies stored telephone number(s).
  • Page 46 Call Control Commands—Continued Command Description ATDn Dial a Number: Directs the DIVA T/A to go online, dial the specified number, and attempt to establish a connection. Punctuation characters may be used for clarity, with parentheses: hyphens, spaces, and periods being ignored.

  • Page 47: V.120 Configuration Commands

    XID frames. The unacknowledged mode is less robust than multiframe mode. Note: The DIVA T/A may automatically switch to the other mode if the link verification frames issued from the remote device do not match the configured mode on the local device.
  • Page 48 The unit of measurement is seconds. Valid range is 1- 255. Default: 30. The value specified for T200 (Retransmission Timer) must be less than the value specified for T203 (Link Integrity Timer). Otherwise, the default values are used. DIVA T/A ISDN Modem Reference Guide 48...
  • Page 49 When Idle Timer expires, this immediately initiates the disconnection of calls. Setting a “0” value disables Idle Timer. The unit of measurement is minutes. Valid range is 0- 10000. Default: 1440 (24 hours) DIVA T/A ISDN Modem Reference Guide 49...

  • Page 50: V.110 Configuration Commands

    Command Description AT!V0=n V.110 Configuration Override: Specifies whether the DIVA T/A uses the COM port setting to configure V.110 or overrides them with user settings. n=0 Use the default settings n=1 Override the COM port settings as per AT!V1, AT!V2, AT!V3, AT!V4, and AT!V5...

  • Page 51: Profile Commands

    Command Description ATZn Restart the DIVA T/A Using Profile n: Restarts your DIVA T/A using stored profile n. Use after changing a static parameter. AT&F Use Factory Settings in Current Profile: Restores and loads all settings in the current profile with the original factory settings.
  • Page 52 (0,1,2) you want to view. AT>Z Restart the DIVA T/A Using Powerup Profile: Restarts your DIVA T/A using the powerup profile. Use anytime you want to load the powerup profile. DIVA T/A ISDN Modem Reference Guide 52...

  • Page 53: Multilink Ppp Commands

    64K. The DIVA T/A first attempts to negotiate BACP; if this is unsuccessful, the DIVA T/A falls back to BOD. Disable (default) Enable Note: You can use this parameter only if the DIVA T/A has been configured for MLPPP. DIVA T/A ISDN Modem Reference Guide 53...
  • Page 54 Note: When BACP/BOD is enabled, the 2 channel is assigned as a data connection only if throughput is above 64KPS. Note also that you can use this parameter only if the DIVA T/A has been configured for MLPPP. DIVA T/A ISDN Modem Reference Guide 54...
  • Page 55 Multilink PPP Commands—Continued Command Description AT%P9=n Second B-channel Connection Retries. Specifies the number of times the DIVA T/A tries to connect to the second B-channel when BOD is disabled. Range: 0-255 Default: 3 AT!X13=n Second B-channel Retry Delay. Specifies the number of seconds the DIVA T/A waits before it re-attempts to connect to the second B-channel.
  • Page 56 No address is used. This class is valid Remote Endpoint only for remote endpoint Discriminator discriminators (EPDs), and is used to accept any remote EPDs received that are all part of the same bundle. DIVA T/A ISDN Modem Reference Guide 56...

  • Page 57: Always On / Dynamic Isdn Commands

    Enter facilities as hexadecimal octets (eight-bit bytes). For example, if your X.25 long distance provider is AT&T (AT&T=3134), you should specify AT!X3=443134 or to specify a Throughput Class of 9600, enter AT!X3=02AA (or in Canada enter AT!X3=02aa420707430707). DIVA T/A ISDN Modem Reference Guide 57...
  • Page 58 X.25 Default Packet Size. Specifies the X.25 default packet size. The packet size used if no packet size is specified in the X.25 facilities field when a call is made. Default value: 128. n=16,32,64,128,256,512, or,1024 DIVA T/A ISDN Modem Reference Guide 58...
  • Page 59 Default is 5 seconds. 1st B-channel Opening Threshold. Specifies the AT!X11=n threshold (percentage) that the throughput on your D-channel must exceed before the 1st B-channel is added to the AO/DI connection. Default is 70. DIVA T/A ISDN Modem Reference Guide 59...
  • Page 60 2nd B-channel Closing Threshold. Specifies the AT!X15=n threshold (percentage) that the throughput on your 2nd B-channel connection must be below before the 2nd B-channel is dropped from the AO/DI connection. Default is 40. DIVA T/A ISDN Modem Reference Guide 60...
  • Page 61 Specifies the LCN that X.25 will use for establishing the AO/DI connection. Default is 1. Range: 1 to 4095 AT!X22=n Enable/Disable AO/DI. Specifies whether the AO/DI feature is enabled or disabled. Default is 1 (enabled). DIVA T/A ISDN Modem Reference Guide 61...

  • Page 62: Utility Commands

    Call type is indicted by the following codes: v=voice, d=data, p=packet. Note: If AutoSPID cannot detect Directory Numbers and call types, these fields will be empty. If an AutoSPID download has not been performed, no information will be retrieved. DIVA T/A ISDN Modem Reference Guide 62...

  • Page 63: Monitor Commands

    Specifies that the DIVA T/A should attempt SPID guessing based on the ISDN Numbers you configured with AT!N1 and AT!N2. When the command is entered, the DIVA T/A will attempt to guess the SPID for each B-channel. If SPID initialization is successful, the SPID number is displayed and saved automatically.
  • Page 64 AT$VM : starts mail trace with default size of 16K, entry size of 64 bytes, no filter AT$VM -p: to pause the mail trace AT$VM -r: to reset the mail trace AT$VM -s: to restart the mail trace DIVA T/A ISDN Modem Reference Guide 64...
  • Page 65 256 bytes, enter: AT$VQ8000,100. If you do not specify trace size and length, the default values are used. The default trace size is 16K, the default entry length is 128 bytes. DIVA T/A ISDN Modem Reference Guide 65...
  • Page 66 The default trace size is 16K, the default entry length is 128 bytes. AT$Y Enter the monitor on the next reset. AT$Z Soft reset the unit and enter monitor. DIVA T/A ISDN Modem Reference Guide 66...

  • Page 67: Analog Device Commands

    Outgoing Analog device calls use Speech encoding (default) Outgoing analog device calls use Audio 3.1Khz encoding. This setting is recommended for modem/fax calls. Note: These parameters are static. They do not take effect until you restart your DIVA T/A. DIVA T/A ISDN Modem Reference Guide 67...
  • Page 68 Disable analog device caller ID delivery n=1 (default) Enable analog device caller ID delivery Note: These parameters are static. They do not take effect until you restart your DIVA T/A. AT*Dn=v Internal Dial Access. Controls the internal dial access for supplementary services.
  • Page 69 DIVA T/A. AT*M=v Visual Message Indicator Refresh Time. Specifies how frequently DIVA T/A should refresh the Visual Message Indicator. Setting v=0 disables Visual Message Indicator feature. Range of v= 1 to 60 (specify the time in minutes)
  • Page 70 Norway n=13 Switzerland n=14 Austria n=15 Cyprus n=16 Finland n=17 Greece n=18 Iceland n=19 Luxembourg n=20 Portugal Note: These parameters are static. They do not take effect until you restart your DIVA T/A. DIVA T/A ISDN Modem Reference Guide 70...
  • Page 71 Device port number (1 or 2) Disable (default) Enable Notes: If v=0 is selected and voice mail is detected, DIVA T/A automatically enables VoiceMail. If the SPID corresponding to an analog device port changes, the parameter will automatically be reset to 0.
  • Page 72 Display cause for entering the monitor at@quit Exit the monitor at>F Restores all profiles to the original factory settings. Reverts the powerup profile to number 0. Warning: All previous user-defined settings are lost. DIVA T/A ISDN Modem Reference Guide 72...

  • Page 73: At Command Result Codes

    - Syntax of command is incorrect - Unable to execute command - Command does not exist - Entered command is outside permitted range CONNECT 1200 Connection made at a bitrate less than or equal to 1200 bps DIVA T/A ISDN Modem Reference Guide 73...
  • Page 74 19200 bps CONNECT 38400 Connection made at a bitrate less than or equal to 38400 bps CONNECT 57600 Connection made at a bitrate less than or equal to 57600 bps DIVA T/A ISDN Modem Reference Guide 74...
  • Page 75 Connection made at a bitrate less than or equal to 128000 bps PROTOCOL: V.120 V.120 Rate Adaption Protocol PROTOCOL: V.110 V.110. Rate Adaption Protocol PROTOCOL: PPPC PPP Protocol PROTOCOL: Multilink PPP Protocol MLPPP DIVA T/A ISDN Modem Reference Guide 75...

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