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US Robotics 3CP3468 User Manual

Us robotics 3cp3468 networking-externalanalogmodem: user guide
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  • Page 1: Table Of Contents

    ABLE OF ONTENTS 1 Introduction About Your 3Com U. S. Robotics ISDN Terminal Adapter ISDN TA Features Package Contents Before You Install System Requirements for Connections CD-ROM 2 Installing Your ISDN TA Familiarizing Yourself with Your ISDN TA Connecting Your ISDN TA to Your Computer Connecting the ISDN Cable Connecting Analog Equipment to Your ISDN TA Connecting the Power Cable...
  • Page 2 Appendix B – AT Commands and S Registers Using AT Commands Basic AT Commands AT& Commands AT* Commands AT# Commands S Registers Appendix C – Connect Messages Appendix D – Specifications ISDN Terminal Adapter Specifications RS-232 Port Pin Specifications Nine-Pin-to-25-Pin Serial Cable Specifications Macintosh Serial Cable Pin Specifications Appendix E –...

  • Page 3: Introduction

    NTRODUCTION About Your 3Com U.S. Robotics ISDN Terminal Adapter This 3Com U.S. Robotics ISDN Terminal Adapter allows you to take advantage of Integrated Services Digital Network, a much faster way to connect to the Internet, corporate networks, or other online services. An ISDN line can carry data, voice, and video transmissions at the same time over a single line and support multiple devices on that line.
  • Page 4 Protocols Multilink PPP (RFC 1990). PPP (RFC 1661). Always On/Dynamic ISDN (AO/DI). V.120 rate adaptation. Asynchronous 128K (3Com proprietary). Advanced Asynchronous 128K (3Com proprietary). ISDN Standards and Interface Complete digital network termination (Basic Rate ISDN U interface with built-in NT1). Compatible with Lucent, Northern Telecom, and Siemens switches.

  • Page 5: Package Contents

    Upgradability Instant Update automatically downloads updated versions of your ISDN TA’s code. Diagnostics ISDN Signaling Protocol Decode. PPP Protocol Decode. Warranty Five-year limited warranty. Package Contents Make sure your ISDN TA’s package contains: 3Com U. S. Robotics ISDN Terminal Adapter Power cable with an AC wall adapter ISDN telephone cable USB cable...

  • Page 6: System Requirements For Connections Cd-Rom

    System Requirements for Connections CD- Note: Your ISDN TA will work with any computer that supports modem-type equipment using a serial connection. The system requirements below apply only to the software available on the Connections CD-ROM that came with your ISDN TA. An IBM-compatible PC must have: 486 DX or Pentium®...

  • Page 7: Installing Your Isdn Ta

    ISDN TA NSTALLING Familiarizing Yourself with Your ISDN TA You should take a look at the front and back panels of your ISDN TA before installing it. Front Panel Figure 2-1 Front Panel LEDs Alert – Lights amber when there is an ISDN connection problem. Blinks amber when code is being updated.

  • Page 8: Connecting Your Isdn Ta To Your Computer

    Back Panel Figure 2-2 Back Panel Connectors Power – Connects the ISDN TA to the power cord and adapter, which deliver 12V DC power Analog Device Ports 1 and 2 – Connect the ISDN TA to two analog devices, such as a telephone or fax machine USB port –...
  • Page 9 To install the cable: Insert the 25-pin male end of the serial cable into the RS-232 serial port on the back of your ISDN TA, as shown below in Figure 2-3. Then tighten the connector screws. Connect the other end of the cable to the serial port you found on the back of your computer.

  • Page 10: Connecting The Isdn Cable

    If “Universal serial bus controller” appears in the list of system devices without any conflict or warning icons, then USB is configured properly. For further information on how to enable and configure your USB port, consult your computer’s users manual or contact the manufacturer.

  • Page 11: Connecting Analog Equipment To Your Isdn Ta

    Caution: Never connect your ISDN TA to a standard analog telephone jack or an external NT1 device. Note: Your phone company may have installed an RJ-45 wall outlet. The RJ-45-to-RJ-11 that came with your ISDN TA will work with the RJ-11 end plugged into the wall outlet. However, multiple phone lines are not supported through the ISDN interface.

  • Page 12: Connecting The Power Cable

    Figure 2-6 Connecting Analog Equipment Connecting the Power Cable To install the power cable: Connect the power cable that came with your ISDN TA to the power connector on your ISDN TA’s back panel, as shown in Figure 2-7. Note: Use only the power cable with adapter that came with your ISDN TA.

  • Page 13: Installing Software For Your Isdn Ta

    NSTALLING OFTWARE ISDN TA After Connecting Your ISDN TA After you install the hardware for your ISDN TA, turn your computer The software installation of your ISDN TA differs slightly, depending upon your operating system. The sections below describe various installations.
  • Page 14 Figure 3-2 “Install From Disk” Windows 95 A Windows takes it from there, copying the necessary files to your computer. Windows 95 B When your computer starts up, it recognizes your ISDN TA, and the “Update Device Driver Wizard” appears. Insert the Connections CD-ROM that came with your ISDN TA.
  • Page 15 Figure 3-3 Search for best driver The screen shown in Figure 3-4 appears. Click the boxes next to CD-ROM drive and Specify a location to select them. Insert the Connections CD that came with your ISDN TA. Then click the drop-down menu below “Specify a location” and select the letter name of your CD-ROM drive.
  • Page 16 Before you log on, insert the Connections CD that came with your ISDN TA. Once you log on and Windows finishes starting up, click Windows Start, select Settings, and click Control Panel. Then double-click the Modem icon. If you have other modems or ISDN devices installed on your computer, the “Modems Properties”...

  • Page 17: Installing Controlcenter

    Figure 3-6 Select your ISDN TA The first “Install New Modem” screen reappears. Click Next. Windows copies the files for your ISDN TA to your computer. Fill out the information requested on the “Location Information” screen, shown in Figure 3-7. Click Next.
  • Page 18 ControlCenter makes using your ISDN TA easier than ever by allowing you to configure many of its settings with a point-and-click graphical interface. Close any open applications. Insert the Connections CD. If Connections is already in your CD- ROM drive, remove it and reinsert it. The Connections installer starts automatically.
  • Page 19 To change where ControlCenter will be saved, click Browse and select a new location. Be sure to remember where the software is saved. To accept the default location, click Next. Figure 3-9 “Choose Destination Location” screen Once you select where to save the files, you are asked where you want the program icons placed.

  • Page 20: Basic Configuration

    ASIC ONFIGURATION Starting ControlCenter for the First Time When you start the ControlCenter software that came with your ISDN TA, it searches your system for products that it can configure. The products it finds are listed on the left side of ControlCenter’s introductory screen.

  • Page 21: Basic Data And Voice Settings

    Figure 4-1 ControlCenter SPID Wizard Basic Data and Voice Settings After you set the SPIDs and telephone numbers as described above, the basic voice and data settings for your ISDN TA’s can be adjusted. Note: The settings described in this section have established defaults that appear in ControlCenter.
  • Page 22 Figure 4-2 ControlCenter port setting configuration screen To change the basic data settings, click the Outgoing Calls drop- down menu in the “Data Port” section. Options in this menu include: Internet Access (PPP) Dynamic Bandwidth (DBA) – This is the default setting. It allows your ISDN TA to use both B- channels to achieve speeds of up to 128 Kbps.
  • Page 23 Asynchronous 128 Kbps does not require PPP software or a network protocol on your computer. However, it does require that the device you are connecting to use the same protocol. Advanced Asynchronous 128K – This is a 3Com U. S. Robotics proprietary channel aggregation method for achieving speeds of up to 128 Kbps.
  • Page 24 Then click the Dynamic Voice Override drop-down menu in the “Voice Port” section. Select Outgoing Calls only, Incoming Calls only, Incoming and Outgoing Calls, or No Dynamic Voice Override. Setting the B-Channel Rate Your ISDN B-channels are capable of either 56 Kbps or 64 Kbps, depending upon the way your call is routed by the telephone company.

  • Page 25: Advanced Configuration

    DVANCED ONFIGURATION Changing the Data Protocols Used by Your ISDN TA To change the data protocols used by your ISDN TA, open ControlCenter. Click the Configuration Manager icon, followed by the Advanced Configuration button. Then click the Data tab. ControlCenter’s “Data” tab, shown in Figure 5-1, has two sections, “Incoming Calls”...
  • Page 26 V.120 Rate Adaption – V.120 is a standard for passing asynchronous data on the ISDN B-channels, which are inherently synchronous. It is typically used when your computer communicates with another computer rather than with an Internet Service Provider. Internet Access (PPP) –Using this setting, your ISDN TA will accept calls that use PPP.

  • Page 27: Adjusting Your Isdn Ta's Ppp Settings

    To select the protocol that your ISDN TA uses to make data calls, click the Outgoing Call Protocol. For more information on the options in this menu, see the “Incoming Data Calls” section above. Set the rate at which data calls are made by clicking the B- channel Rate drop-down menu.
  • Page 28 Figure 5-2 ControlCenter “PPP Settings” screen PPP Mode On the “PPP Settings” screen, click the PPP Mode drop-down menu to select what type of PPP connection your ISDN TA makes. Options include: Transparent Async/Sync PPP – Automatically converts the asynchronous PPP from your host computer into synchronous PPP that is transmitted over the ISDN line.

  • Page 29: Using Dynamic Bandwidth Allocation

    The “Endpoint Discriminator” drop-down menu is set to “Automatically Assigned” by default. Do not change this setting unless specifically told to do so by the person who administrates the device or network you are connecting to. BACP/BAP The Bandwidth Allocation Control Protocol (BACP) and Bandwidth Allocation Protocol (BAP) are used to negotiate bandwidth allocation with the server your ISDN TA is connected to.

  • Page 30: Using Always On/Dynamic Isdn

    Figure 5-3 ControlCenter “B-channel Threshold Settings” screen The settings that can be adjusted on this screen include: Sample Time to Add B-channel – Use the slide bar to adjust how often, in seconds, the other channel is checked to determine if this channel needs to be turned on.
  • Page 31 These signaling messages typically do not require all of the D- channel’s bandwidth. By sending and receiving data on the D-channel, your ISDN TA can take advantage of its extra capacity. AO/DI uses a protocol known as X.25 over the D-channel to conduct low bandwidth operations, such as checking for new messages by your email program.
  • Page 32 At the bottom of the “ISDN Line” screen, click Enable AO/DI (Always On/Dynamic ISDN) to select it. A check mark appears in the box next to the item when it is selected. Click the AO/DI Settings button. The screen shown in Figure 5-4 appears.

  • Page 33: Using Asynchronous 128K And Advanced Asynchronous 128K

    For information on dialing for an AO/DI connection, see the chapter “Dialing, Storing Numbers, and Logging Calls.” Managing AO/DI Operations A check box in the “AO/DI Operations” section enables or disables the Request Reverse Charge operation. Request Reverse Charge allows you to request that the charge for an X.25 connection on your ISDN TA’s D-channel be paid by the recipient of the call.
  • Page 34 In this mode, your ISDN TA may compress data sent by the host, which is then decompressed before it reaches its destination. This compression allows more data to be sent over your ISDN line’s B- channels (at rates higher than 128 Kbps). When Dynamic Bandwidth Allocation is in use.

  • Page 35: Using Your Isdn Ta On A Leased Line

    To change PPP and DBA settings see section on “Adjusting Your ISDN TA’s PPP Settings” and “Using Dynamic Bandwidth Allocation” sections of this chapter. To use Advanced Asynchronous 128K: Open ControlCenter and click the Configuration Manager icon. Click the Advanced Configuration button. To set the protocol for incoming calls, click the Incoming Call Protocol drop-down menu.

  • Page 36: Returning Your Isdn Ta's Settings To The Factory Defaults

    If your leased line has only one B-channel, click Leased Line 64 Kbps (1 B-channel). If your leased line has two B-channels, click Leased Line 128 Kbps (2 B-channels). Figure 5-5 ControlCenter “ISDN Line” tab Click the Terminal icon on the left side of the ControlCenter screen.
  • Page 37 Figure 5-6 ControlCenter “Reset” tab Click the Factory Settings drop-down menu. From this menu, select the default mode that you want your ISDN TA to be set to. Options include: No Hardware Flow Control Template – Resets your ISDN TA’s basic settings with flow control turned off.

  • Page 38: Setting Spids, Telephone Numbers, And Teis Manually

    Setting SPIDs, Telephone Numbers, and TEIs Manually If both AutoSPID and the SPID Wizard fail to identify the SPIDs and telephone numbers for your ISDN line, these numbers can be entered manually. Remember: The SPIDs and telephone numbers for your ISDN line should have been provided by your phone company when you ordered your ISDN service.
  • Page 39 The TEIs for your telephone numbers are provided by your phone company. They are set on ControlCenter’s “ISDN Line” tab, just as your SPIDs and telephone numbers were. If you were not provided with specific TEIs, leave Automatic Assignment set in the drop-down menus. If you were provided with specific Terminal Endpoint Identifiers for your telephone numbers, select Fixed Assignment from the “TEI for Telephone Number 1 (DN1)”...

  • Page 40: Voice Features

    OICE EATURES Supported Voice Features A variety of supplementary voice features are described below. They are for use by analog devices, such as a telephone or fax machine, operating on your ISDN line through your ISDN TA. Note: These features require that you have the proper ISDN service established.

  • Page 41: Enabling Voice Features

    To drop the person most recently added to the call, press the switch hook or “Flash” button on your phone. To transfer a call, simply hang up the phone while part of a three-way conference call. The two other people will be able to continue the call. The three-way call conferencing options also allow you to make a consultation call.
  • Page 42 Figure 6-1 ControlCenter “Voice” tab Click the Settings button next to “Enable.” The screen shown in Figure 6-2 appears. The supplementary voice services for each Analog Device Port are listed. Be sure that each voice service that you want to use is selected. A check mark appears in the box when it is selected.

  • Page 43: Advanced Voice Configuration

    Figure 6-2 ControlCenter “Advanced Voice Settings” screen Advanced Voice Configuration Several other features for the Analog Device Ports can be set from the Voice tab using ControlCenter’s advanced configuration tools. To get to ControlCenter’s Voice tab: Open ControlCenter. From the list of devices that appears on the left of the ControlCenter screen, select your ISDN TA by clicking it.
  • Page 44 Bearer Capability – Choose Speech in this drop-down menu if a standard telephone will be using the Analog Device Port. Choose 3.1 KHz Audio for a higher-quality analog connection through the port. You may want to use 3.1 KHz Audio if a fax machine or analog modem will be using the Analog Device Port.

  • Page 45: Getting Online With Your Isdn Ta

    ISDN TA ETTING NLINE WITH Windows 95 or 98 Before you can connect your ISDN TA to the Internet or to another online service (such as your company’s network), you must be sure that Windows Dial-Up Networking and Dial-up TCP/IP support are installed on your computer.
  • Page 46 Figure 7-1 “Network” screen If the Dial-Up Adapter is not listed, close the “Network” screen and return to the Control Panel. Then double-click the Add/Remove Programs icon. When the “Add/Remove Programs Properties” screen appears, click the Windows Setup tab, as shown in Figure 7-2. Figure 7-2 “Add/Remove Programs Properties”...
  • Page 47 Figure 7-3 “Communications” screen Installing Dial-Up TCP/IP Support To install Dial-Up TCP/IP support: Click Windows Start, select Settings, and click Control Panel. Double-click the Network icon. The “Network” screen, shown in Figure 7-1 appears. If “TCP/IP ->Dial-Up Adapter” appears in the list of network components, go to the next section of this chapter, “Connecting to Your Service Provider.”...
  • Page 48 Figure 7-4 “Select Network Component Type” screen The “Select Network Protocol” screen appears, as shown in Figure 7-5. From the list labeled “Manufacturers,” select Microsoft by clicking it. Then select TCP/IP from the “Network Protocols” list. Click OK. Then follow the onscreen instructions to finish installing Dial-Up TCP/IP support.
  • Page 49 Click Start, select Programs and Accessories, and click Dial-Up Networking. When the “Dial-Up Networking” screen appears, double-click the Make New Connection icon. The screen shown in Figure 7-6 appears. Select 3Com U. S. Robotics ISDN TA EXT PnP from the “Select a modem” drop- down menu.
  • Page 50 Figure 7-7 Dial-Up Networking telephone number screen In the “Dial-Up Networking” screen where you first found the “Make New Connection” icon, an icon for the connection you just created appears. Right-click this icon. Then click Properties. Click the Server Types tab. When the screen shown in Figure 7-8 appears, click the boxes next to the following items to turn them off: Log on to network...
  • Page 51 Figure 7-8 Connection properties screen Customizing TCP/IP Settings Your service provider may give you custom TCP/IP settings for your ISDN TA. These settings may include an IP address or Domain Name Server (DNS). Note: If your service provider does not give you these numbers, do not alter these settings.

  • Page 52: Windows Nt 4.0

    If your service provider gave you a specific Domain Name Server, click Specify name server address. Then type the address or addresses your service provider gave you in the appropriate text boxes. Click OK to close the “TCP/IP Settings” screen. Then click OK to close the connection properties screen.
  • Page 53 Look for “TCP/IP Protocol Adapter” in the list of installed protocols. If “TCP/IP Protocol Adapter” is listed, go to the next section, “Setting Up Remote Access Service.” If “TCP/IP Protocol Adapter” is not listed, go to step 4. Click the Add button. Click TCP/IP protocol in the list of available protocols.
  • Page 54 instructions to install it. You may have to restart Windows NT, so be sure to close any open applications before installing Dial-Up Networking. When the “Dial-Up Networking” screen appears, click New. Note: If you have never used Dial-Up Networking, the “New Phonebook Entry Wizard”...

  • Page 55: Other Operating Systems

    Click the Modem drop-down menu and select your ISDN TA. Configuring TCP/IP To configure TCP/IP: Click the Apple Menu. Then select Control Panels and TCP/IP. When the “TCP/IP” screen appears, click the Connect via drop- down menu and select PPP. If you were provided with a Domain Name Server address by your Internet Service Provider, type it in the “Name Server addr.”...

  • Page 56: Dialing, Storing Phone Numbers, And Logging Calls

    IALING TORING HONE UMBERS OGGING ALLS Placing Calls Manually You can place calls manually using your ISDN TA’s AT commands. To do so: Open ControlCenter and click the Terminal icon. If you are not using ControlCenter, send AT commands to your ISDN TA by opening a different piece of communication software’s terminal mode.
  • Page 57 For example, type .14085426793. Then finish setting up your connection as usual. Note: If you are using Windows 95 or 98, be sure that Use country code and area code is turned off. If you are using NT, be sure that Use Telephony dialing properties is turned off. These items are on the same connection properties screen as the box where you type the phone numbers.

  • Page 58: Updating Your Isdn Ta

    ISDN TA PDATING From time to time, revised code will be released for your ISDN TA to improve the way it works and what it can do. Using Instant Update Instant Update can be used to check for, download, and implement these revisions, updating your ISDN TA and its software quickly and automatically.
  • Page 59 Scheduling Tab Click the Scheduling tab to set how often Instant Update checks for and, if available, downloads new software. Note: For Instant Update to run automatically on the scheduled day, be sure that “Run Instant Update from the Windows Startup Group” is selected on Instant Update’s “Common”...

  • Page 60: Flashing Your Isdn Ta From Disk

    Do not enter any information on this screen unless instructed to do so by a 3Com Customer Support representative. Flashing Your ISDN TA from Disk To update your ISDN TA’s code without using Instant Update: Open ControlCenter and click the Terminal icon. Type ATI7 and press Enter.

  • Page 61: Flashing Your Isdn Ta Manually With .Xmp Flash

    Figure 3 “Flash From Disk” screen Find the file that you downloaded from the Web site. Select it and click OK. Then click the Update button. Flashing Your ISDN TA Manually with .XMP Flash To update your ISDN TA’s code without using ControlCenter: Open your terminal software.
  • Page 62 A message appears that says, “SDL Xmodem file transfer,” followed by “Yes,” “No,” and “Test.” Type Y to send the .xmp file to your ISDN TA via xmodem file transfer. Note: If you are using a Macintosh, disable the MacBinary option in your terminal program.

  • Page 63: Using Protocol Decode

    SING ROTOCOL ECODE Protocol Decode, a diagnostic tool that is a part of your ControlCenter software, reads, filters, and displays a record of the protocol information for connections made by your ISDN TA. Your ISDN TA records all the protocol messages that pass between your ISDN TA, your computer, the telephone company switch, and the device that you are connecting to.
  • Page 64 PPP/LCP Decode – The check boxes in this section allow you to select which PPP messages B-channels will be displayed. “Network” displays PPP messages passed between your ISDN TA and the device that it is connected to “DTE” displays PPP messages passed between your ISDN TA and your computer.

  • Page 65: Configuring Your Isdn Ta Using At Commands

    ISDN TA ONFIGURING AT C SING OMMANDS This chapter outlines how to configure many of the common settings for your ISDN TA using AT commands. Further descriptions of these settings, as well as methods of adjusting these settings using the ControlCenter software that came with your ISDN TA, are discussed in previous chapters.
  • Page 66 Figure 11-1 ATI12 information screen Switch Protocol The switch protocol is set using AT*W=n. The switch type is supplied by your telephone company when you order your ISDN line. Command: Sets your switch type to: AT*W=1 DMS-100 Custom AT*W=2 National ISDN-1(default) AT*W=3 National ISDN-2 AT*W=4...
  • Page 67 To set the SPIDs manually: Command Follow the equal sign with: AT*S1= SPID for telephone number 1 AT*S2= SPID for telephone number 2 TEIs The Terminal Endpoint Indentifiers (TEI) for your ISDN TA are set using AT*T=. Command: Follow the equal sign with: AT*T1= TEI for telephone number 1 If set to 255, TEI is set automatically...

  • Page 68: Ati15 (Phone Port Settings)

    ATI15 (Phone Port Settings) Type ATI15 and press Enter. An information screen appears, listing the settings for your ISDN TA’s Analog Device Ports, as shown in Figure 11-2. There are two Analog Device Ports on the back of your ISDN TA. They are labeled 1 and 2. In all of the commands listed below, x represents the number of the Analog Device Port.

  • Page 69: Volume Control

    Port x Data Call Routing The AT*R= command determines which telephone numbers can be answered as data calls. Command: Result: AT*R=0 Disables incoming data calls AT*R=1 Telephone number 1 can be answered as a data call AT*R=2 Telephone number 2 can be answered as a data call AT*R=4 Both telephone numbers can be...
  • Page 70 AT#Ax=2 Enable Call Waiting on the port (default) Three-way conference options Each Analog Device Port’s three-way conference options can be turned on an off using AT#Cx=. A code for three-way conferencing will be provided by your phone company when you order the service. Command: Follow the equal sign with: AT#Cx=...

  • Page 71: Ati16 (Data Protocol Settings)

    option, is the default. If your phone company uses a different two-digit number, type it after the equal sign. Caller ID The Caller ID options for each Analog Device Port can be turned on or off using AT#Ix=. Command: Result: AT#Ix=0 Caller ID disabled on the port AT#Ix=1...
  • Page 72 The outgoing data protocol is set using AT*VO=. Command: Result: AT*VO=1 V.120 Rate Adaption (Fixed) AT*VO=5 Auto Mode PPP (default) AT*VO=7 Asynchronous 128K AT*VO=8 Advanced Asynchronous 128K PPP Mode The PPP mode is set using AT*PPP=. Command: Result: AT*PPP=0 Sets all PPP-related values to their defaults AT*PPP=1 Transparent Async-to-Sync PPP...
  • Page 73 AO/DI Callback With an AO/DI connection, the D-channel is connected first. When additional bandwidth is needed, BACP/BAP can request the server to call back on a B-channel, when AO/DI callback is enabled. The server must support your account with callback feature.
  • Page 74 AT*K=2 Turbo PPP Compression MLPPP Endpoint Discriminator Class The Endpoint Discriminator Class for MLPPP is set using AT*U=. Command: Result: AT*U=0 Automatic assignment (default) AT*U=1,xxx Locally assigned address xxx AT*U=2,xxx Internet Protocol address xxx AT*U=3,xxx IEEE 802.1 globally assigned MAC address xxx AT*U=4,xxx PPP Magic Number Block xxx AT*U=5,xxx...

  • Page 75: Troubleshooting

    ROUBLESHOOTING Note: Many of the remedies below involve changing the settings of your ISDN TA using ControlCenter. All of these settings can also be changed using AT commands and your computer’s communications software. For more information, see the chapter “Configuring Your ISDN TA Using AT Commands.”...
  • Page 76 signal. How do I set my ISDN TA to drop one of the B- channels on the data transmission and allow the call to come through? Open ControlCenter. Then click the Configuration Manager icon. When the “Basic Configuration” screen appears, click the Dynamic Voice Override drop-down menu.
  • Page 77 The Remote Access Server that I dial does not have a hunt group, and I need to dial two phone numbers to get a 128 Kbps connection. How do I do this? In the phone number section of your dialing program type both phone numbers separated by &.
  • Page 78 n=1 DMS-100 n=2 National ISDN-1 (default) n=3 National ISDN-2 n=4 5ESS Custom Multipoint n=5 5ESS Custom Point-to-Point n=6 Leased Line 64 kbps (1 B-channel) n=7 Leased Line 128 kbps (2 B-channels) To enter your area code information, type AT*P0=xxx and press Enter.
  • Page 79 The supplementary voice features for my ISDN line are not working. Your ISDN TA only supports supplementary voice features when you use a National ISDN ordering code to set up your ISDN service. If you had to order your service by switch type, these features may not work. Also, many of the National ISDN codes only support the supplementary voice features on one of your ISDN line’s phone numbers.
  • Page 80 I cannot connect when I try to make an AO/DI call. Be sure that your Internet Service Provider supports AO/DI. Be sure that you put a period in front of the telephone number for your D-channel. If you are using Windows 95 or 98 Dial-Up Networking, be sure that Use country code and area code is turned off.
  • Page 81 Click the ISDN Line tab. Then click the AO/DI Settings button. Enter the information in the “Network Settings” section. While making an AO/DI connection, my ISDN line’s B- channels will not engage. Open ControlCenter and click the Configuration Manager icon. Click the Advanced Configuration button.
  • Page 82 Click the PPP Settings button. In the “PPP Mode” drop-down menu, be sure that MultiLink PPP with Dynamic Bandwidth Allocation is selected. Then click the Dynamic Bandwidth button. Your ISDN line’s two B-channels are represented on the “B-channel Threshold Settings” screen. The settings that can be adjusted include: Sample Time to Add B-channel –...

  • Page 83: Appendix A - Ordering Isdn Service

    ISDN S RDERING ERVICE Placing Your ISDN Order through 3Com To have your ISDN order placed for you, simply call 1-800-572-3Com. A 3Com representative will ask what services you require on your ISDN line, provide the appropriate information to your telephone company, and schedule an appointment for the installation of your ISDN line.
  • Page 84 It allows you to use analog devices, such as a telephone or fax machine, on your ISDN line and includes Calling Number Identification for both data and voice calls. EZ-ISDN 1 is also set up to allow supplementary voice services for one analog device on the ISDN line.
  • Page 85 Capability package AB – This package includes the same functionality as EZ-ISDN 3 with the addition of supplementary voice features on both directory numbers. Capability package AC – This package includes the same functionality as EZ-ISDN 3A with the addition of supplementary voice features on both directory numbers.
  • Page 86 Ordering by Switch Type If your phone company does not use National ISDN Ordering Codes, ask the phone company what type of switch you will be using. Then provide the information listed below for your switch type. Note: The parameters listed below support voice and data traffic at speeds of up to 128 Kbps.
  • Page 87 Display Circuit-switched Voice Limit Circuit-switched Data Limit Voice or Data Both Call Appearance Idle Flexible Call Offering DMS 100 Switch To order service for the DMS 100 Switch, supply the following information: Required Ask for: Information: Line Type Standard National ISDN-1 line Line Code 2B1Q...
  • Page 88 AT C OMMANDS AND EGISTERS Using AT Commands AT commands are used to change your ISDN TA’s settings. They are sent using communications software’s terminal mode. If you are using third-party communications software, consult the users manual for information on using terminal mode. If you are using the ControlCenter software that came with your ISDN TA, click the Terminal icon to reach terminal mode.
  • Page 89 Product code Flash CRC RAM test Product name Current settings NVRAM settings Data call statistics Configuration profile n=12 ISDN switch settings n=15 Phone port settings n=16 Data protocol settings n=18 Call logging Information screen menu Return online ATQn Result codes sent No result codes Verbose/Quiet on answer (default) ATVn...
  • Page 90 Xon/Xoff for non-ARQ Mode AT&Rn CTS follows RTS Ignore RTS RTS RX flow contro(default) AT&Sn DSR always on (default) Modem controls DSR Pulse DSR, CTS=CD Pulse DSR DSR=DCD DSR normal, CTS=CD AT&W Store configuration ATZn=s Store phone number s as n ATZn=L Store most recent phone number as n ATZn?
  • Page 91 MultiLink PPP MultiLink PPP with Dynamic Bandwidth Allocation (default) AT*P0=n Area code AT*P1=n Telephone number 1 (DN1) AT*P2=n Telephone number 2 (DN2) AT*PD=n Telephone number for X.25 on D-channel AT*R=n Call routing for data port Disable incoming data calls DN1 and DN2 Any number AT*S=n Disable AutoSPID mode...
  • Page 92 Command: Result: AT#$ Help, # commands AT#A1=n Call Waiting on ADP1 Disable incoming calls Disable Call Waiting Call Waiting enabled (default) AT#A2=n Call Waiting on ADP2 Disable incoming calls Disable Call Waiting Call Waiting enabled (default) AT#B1=n Voice Bearer Capability on ADP1 3.1 KHz audio (default) Speech AT#B2=n...
  • Page 93 Disable all supplementary services Enable any services that are enabled individually (default) AT#S2=n Global control of all supplementary services on ADP2 Disable all supplementary services Enable any services that are enabled individually (default) AT#T1=n Call Transfer on ADP1 Disable n=61 Enabled by default, other number may be assigned by phone company to enable feature AT#T2=n...
  • Page 94 ATS14=n Escape code hang up Result code in originate mode only ATS19=n Inactivity time out in minutes ATS22=n Xon character ATS23=n Xoff character ATS24=n DSR pulse time in 1/50s of a second ATS25=n DTR recognition time in 1/10s of a second ATS38=n Disconnect wait time in seconds ATS67=n...
  • Page 95 ONNECT ESSAGES Your ISDN TA reports the following messages upon connect. AO/DI CONNECT 9600/AODI Asynchronous 128K CONNECT 128000/ASYNC Advanced Asynchronous 128K CONNECT 128000/ADVANCED_ASYNC PPP at 56K B-channel Rate CONNECT 56000 PPP at 64K B-channel Rate CONNECT 64000 V.120 at 56K B-channel Rate CONNECT 56000/ARQ/DIGITAL/V120 V.120 at 64K B-channel Rate CONNECT 64000/ARQ/DIGITAL/V120...
  • Page 96 PECIFICATIONS ISDN Terminal Adapter Specifications Network Interface – Integrated Services Digital Network (ISDN) Basic Rate telephone service provided by the telephone company Physical Interface – U (integrated NT1) Physical Dimensions – Length 8.66 in. (22.0 cm) Width 5.44 in. (13.8 cm) Height 1.56 in.
  • Page 97 Nine-Pin-to-25 Pin Serial Cable Specifications Pin Name DB25 Pin # Pin # Carrier Detect (CD) Receive Data (RD Send Data (SD) Data Terminal Ready (DTR) Signal Ground (GND) Data Set Ready (DSR) Request to Send (RTS) Clear to Send (CTS) Ring Indicator (RI) Shield Macintosh Serial Cable...
  • Page 98 LOSSARY AO/DI Always On/Dynamic ISDN. Takes advantage of your ISDN line’s signaling channel (D-channel) to conduct low-bandwidth operations. Async-Sync PPP Conversion Asynchronous to synchronous PPP conversion. Converts asynchronous PPP into synchronous (HDLC-based) PPP that can be transported in ISDN B-channels to communications servers that have integrated ISDN BRI, PRI, or T1 access lines.

  • Page 99: Directory Numbers

    Communications port (also referred to as a serial port). Your ISDN TA’s communications port allows a maximum rate of 230.4 Kbps. Note that most computers’ COM ports only allow a maximum of 115.2 Kbps. However, accelerator cards can increase that rate to 230.4 Kbps. Compression Reducing the size of data packets without losing any information.
  • Page 100 An ISDN standard to create consistency in ISDN service features across different vendors’ equipment and switches for North America. Network Terminator (NT1) A device that terminates the ISDN line. The NT1 is built into your ISDN TA. Password Authentication Protocol. An authentication protocol that requests information to verify a valid user.
  • Page 101 3Com Corporation 3800 Golf Rd. Rolling Meadows, Illinois 60008 Copyright © 1999, 3Com Corporation. All rights reserved. No part of this documentation may be reproduced in any form or by any means or used to make any derivative work (such as translation, transformation, or adaptation) without written permission from 3Com Corporation. 3Com Corporation reserves the right to revise this documentation and to make changes in content from time to time without obligation on the part of 3Com Corporation to provide notification of such revision or change.
  • Page 102 3800 Golf Road Rolling Meadows, IL 60008 U.S.A. Telephone: 847 262 5000 declares that the product 3COM US Robotics ISDN Terminal Adapter conforms to the FCC’s specifications: Part 15, Subpart B, Class B Operation is subject to the following two conditions:...

  • Page 103: Fax Branding

    company will provide advance notice in order for you to make necessary modifications to maintain uninterrupted service. If trouble is experienced with this device, for repair and warranty information, please refer to the Technical Support insert for repair information and the warranty section of this User Guide for warranty information.
  • Page 104 product or part for ninety (90) days from shipment, or the remainder of the initial warranty period, whichever is longer. YEAR 2000 WARRANTY: In addition to the Warranty stated above, 3COM warrants that each product sold or licensed to Customer on and after January 1, 1998 that is date sensitive will continue performing properly with regard to such date data on and after January 1, 2000, provided that all other products used by Customer in connection or combination with the 3COM product, including hardware, software, and firmware, accurately exchange date data with the 3COM product, with the exception of...
  • Page 105 MAINTENANCE, USE, PERFORMANCE, FAILURE, OR INTERRUPTION OF ITS PRODUCTS, EVEN IF 3COM OR ITS AUTHORIZED RESELLER HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES, AND LIMITS ITS LIABILITY TO REPAIR, REPLACEMENT, OR REFUND OF THE PURCHASE PRICE PAID, AT 3COM’S OPTION. THIS DISCLAIMER OF LIABILITY FOR DAMAGES WILL NOT BE AFFECTED IF ANY REMEDY PROVIDED HEREIN SHALL FAIL OF ITS ESSENTIAL PURPOSE.

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