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® 3C OM I MP A CT IQ E XTERNAL ISDN M ODEM U SER G UIDE Part No. 09-0885-001 Published July 1997.
3Com C orporation ■ 5400 Bayfront Plaza ■ Santa Clara, California ■ 95052-8145 3Com Corporation, 1997. All rights reserved. No part of this documentation may be reproduced in any form or by an y means or used to make any derivativ e work (such as translation, transformation, or adaptation) without permission from 3Com C orporation.
® 5-Y EAR L IMITED W ARRANTY The warranty for the 3ComImpact™ IQ External ISDN Modem is as stated in the Limited Warranty statement found at the back of this User Guide with the exception that the 3C omImpact IQ Ex ternal ISDN modem has a 5-year limited warranty on the hardware in lieu of the standard 1-y ear warranty .
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C ONTENTS A BOUT T HIS G UIDE Introduction 1 How to Use This Guide 1 Con ventions 2 1 I NTRODUCTION 3C882 ISDN Modem F eatures 1-2 3C882 ISDN Modem P ackage Contents 1-4 Before Y ou Install the 3C882 .
Configure Dial-Up Netw orking 3-23 Dial Up Networking for Windows 95 3-23 T o configure Dial-Up Networking manually : 3-23 Running the Internet Set-Up Wizard 3-24 Dial-up Networking for Windows NT 4.0 3-26 Setup for 230Kbps 3-30 Setting up 230K for Windows NT 3.
7 P LACING AND R ECEIVING C ALLS Placing ISDN Data Calls 7-1 Placing Calls A utomatically 7-2 Placing Calls Manually 7-2 Placing Multilink PPP Calls 7-3 Placing a T ollM izer Call 7-4 Receiving ISDN D.
B AT C OMMANDS , S R EGISTERS , AND R ESULT C ODES A T Command Set B-1 S Registers B-4 Result Codes B-9 C S PECIFICATIONS 3C882 ISDN Modem Specifications C-1 RS-232 C OM Port Pin Specifications C-2 .
F IGURES 1-1 Network Access with the 3C882 ISDN Modem 1-1 1-2 ISDN Information Sheet 1-7 2-1 Installation Steps f or the 3C882 ISDN Modem 2-1 2-2 Fr ont Panel LED Indicators 2-2 2-3 Back Panel Connect.
3-21 Phonebook Entr y Screen 3-28 3-22 Ser ver T ype Screen 3-28 4-1 3C882 Configuration Steps f or a Macintosh 4-1 4-2 Installation Message Box 4-2 4-3 Successful Installation Message Box 4-3 4-4 3C.
T ABLES 1 T ext Conv entions 2 2 Notice Icons 2 2-1 Fr ont P anel LED Indicator Definitions 2-2 5-1 Changing Default Settings 5-5 6-1 How to Use Call Waiting 6-2 6-2 How to Use C all Confer ence 6-3 .
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A BOUT T HIS G UIDE Introduction This guide describes how to install, operate , and troubleshoot the 3ComImpact IQ External ISDN Modem, referr ed to throughout this guide as the 3C882 ISDN modem. Be sure to read the README .TXT or readme files on the applicable software utility diskette for the latest pr oduct information.
2 A BOUT T HIS G UIDE C on ven tions T able 1 and T able 2 list text and icon conventions that ar e used throughout this guide. T able 1 T ex t Conventions Convention Description Text represented as s.
1 I NTRODU CTION Th e 3ComImpact IQ External ISDN Modem (referred to as the 3C882 ISDN modem throughout this guide) is an external, stand-alone Integrated Services Digital Network (ISDN) Basic Rate ISDN modem for connection with digital telephone ser vices from local telephone companies in North America.
1-2 C HAPTER 1: I NTRODUCTION the highest reliability and error-free performance possible. With hi/fn compression and a high-speed serial port, the 3C882 ISDN modem allows you to r each transmission speeds of up to 230.4 Kbps. ISDN technology reduces call setup times by more than 50% compared t o V .
3C882 ISDN Modem Features 1-3 High P er formance ■ hi/fn , version 5, compression, for data throughput of up to 230.4 Kbps, which conforms to these IETF RFC’ s: The PPP Compression C ontrol Pr.
1-4 C HAPTER 1: I NTRODUCTION Security ■ P assword A uthentication Prot ocol (P AP) and Challenge Handshake Authentication Pr otocol (CHAP) support on both single-channel and Multilink PPP calls (IE.
Before You Install the 3C882 ISDN Modem 1-5 ■ 3.5-inch installation diskettes for PCs running Windows® 95, Windows NT®, or Windows 3.x ■ 3.5-inch installation diskette for PCs running DOS ■ 3.
1-6 C HAPTER 1: I NTRODUCTION IBM PC or C ompatible Requirements An IBM-compatible PC must have the f ollowing: ■ A 386, 486, or Pentium processor ■ Microsoft Windows 95, Windows NT , or Windows 3.
Before You Install the 3C882 ISDN Modem 1-7 ISDN Information Enter your ISDN telephone number(s) in the inf ormation sheet shown in F igure 1-2. Y ou will need this information during configuration of the 3C882 ISDN modem.
1-8 C HAPTER 1: I NTRODUCTION you ordered one ISDN t elephone number , write 1. If you ordered two ISDN t elephone numbers, write 2. Ordering two ISDN telephone numbers allows you to conduct two simultaneous calls on both analog phone ports. ISDN T elephone Number 1.
2 I NST ALLING THE 3C882 ISDN M ODEM This chapter describes installation of the 3C882 ISDN modem for use with an IBM or IBM-compatible PC or an Apple Macintosh computer . This installation procedure assumes that y ou are familiar with your Apple Macintosh or IBM-compatible computer .
2-2 C HAPTER 2: I NSTALLING THE 3C882 ISDN M ODEM F amiliarizing Y ourself with the 3C882 ISDN M odem Y ou should familiarize yourself with the components of the front panel and back panel of the 3C882 ISDN modem prior to installation.
Installing a Serial Cable 2-3 Installing a Serial Cable Y ou will need the following type of serial cable. ■ F or a Macintosh computer , you will need a 25-pin male to mini DIN 8-pin male serial cable. Refer to the inf ormation enclosed in your 3C882 ISDN modem package to order a free cable.
2-4 C HAPTER 2: I NSTALLING THE 3C882 ISDN M ODEM T o install the 3C882 ISDN modem serial cable: 1 Insert the 25-pin male end of a serial signal cable into the RS-232 serial port on the 3C882 ISDN modem’ s back panel and tighten the connector screws , as shown in Figure 2-4.
Installing the ISDN Cable 2-5 1 Installing the ISDN Cable T o install the ISDN cable: 1 Connect the RJ-45 (8-pin) connector end of the RJ-45/RJ-11 ISDN cable to the RJ-45 ISDN line port labeled ISDN U on the 3C882 ISDN modem ’ s back panel, as shown in Figur e 2-5.
2-6 C HAPTER 2: I NSTALLING THE 3C882 ISDN M ODEM 1 Insert one RJ-11 connec tor to a phone port labeled with a telephone icon on the back of the ISDN modem, as shown in Figur e 2-6. Figure 2-6 Analog Equipment Connection 2 Insert the other RJ-11 end into the appropriate RJ-11 port on the analog device.
Installing the Power Cable 2-7 Specialized telephone equipment such as speaker phones that draw lar ge amounts of power may not work on the 3C882 ISDN modem ’ s Phone por t. Because these devices do not conform to the power specific ation of the 2500 touch-tone telephone standard , their operation is not guaranteed .
2-8 C HAPTER 2: I NSTALLING THE 3C882 ISDN M ODEM This completes the 3C882 ISDN modem installation. Refer to the appr opriate chapter to configure the 3C882 ISDN modem; either Chapter 3, “Configuration for an IBM-Compatible PC Running Windows,”or Chapter 4, “Configuration for an Apple Macintosh C omputer .
3 C ONFIGURATION FOR AN IBM-C OMPATIBLE PC R UNNING W INDOWS This chapter describes the 3C882 ISDN modem configuration for use with the Windows operating system. Main topics are as follows: ■ Configuring the 3C882 ISDN modem ■ Setup using Windows 95 ■ Setup using Windows NT 3.
3-2 C HAPTER 3: C ONFIGURATION FOR AN IBM-C OMPATIBLE PC R UNNING W INDOWS Installing the 3C882 Software T o install the 3C882 ISDN modem software: 1 Insert the 3ComImpact IQ Windows Installation Diagnostic Utilities diskette into an a vailable floppy driv e.
Configuring the 3C882 ISDN Modem for a PC 3-3 4 Click Next to continue the installation. Y ou will then be prompted to choose the director y in which to install the software. 5 If you would like t o designate a directory other than the default directory , click Browse to do so .
3-4 C HAPTER 3: C ONFIGURATION FOR AN IBM-C OMPATIBLE PC R UNNING W INDOWS 1 Double-click the 3ComImpact IQ icon shown in F igure 3-4. Figure 3-4 3ComImpact IQ Globe Icon Y ou will see a star t message, as shown in Figure 3-5.
Configuring the 3C882 ISDN Modem for a PC 3-5 After the switch type is configured , the dialog box for the first telephone number appears, as shown in F igure 3-6. Figure 3-6 First T elephone Number Dialog Box for PC 2 Enter the first telephone number for y our ISDN line.
3-6 C HAPTER 3: C ONFIGURATION FOR AN IBM-C OMPATIBLE PC R UNNING W INDOWS After the SPID is configured , the dialog box shown in F igure 3-7 appears. Figure 3-7 Second T elephone Number Dialog Box for PC 4 If you ha ve a second telephone number f or your ISDN line , enter it, and then click Next .
Configuring the 3C882 ISDN Modem for a PC 3-7 5 Click Finish . The on-line registration dialog bo x appears. Enter your information and then click Register Now . After your inf ormation is received , the Successful Registration dialog box will open. 6 Click OK.
3-8 C HAPTER 3: C ONFIGURATION FOR AN IBM-C OMPATIBLE PC R UNNING W INDOWS A message bar at the bottom of the dialog box pro vides status information about the 3C882 ISDN modem. The Configuration dialog bo x buttons do the follo wing. Help . Click the Help button to access help for the Configuration dialog box.
Configuring the 3C882 ISDN Modem for a PC 3-9 SPID(s) are configured , click ing on the 3ComImpact IQ globe icon will thereafter display the C onfiguration dialog box. If you add a second telephone number to your ISDN line after you run the SPID Wizard, you can use the SPID Wizard to detect the SPID for your second telephone number .
3-10 C HAPTER 3: C ONFIGURATION FOR AN IBM-C OMPATIBLE PC R UNNING W INDOWS Additional configuration may be needed f or Multilink PPP . For details refer t o S registers 82 and 83 in Appendix B, “ A T Commands , S Registers, and Result Codes ”. Note that if you disable Multilink PPP (i.
Configuring the 3C882 ISDN Modem for a PC 3-11 have both a telephone and a fax machine connected to y our 3C882 ISDN modem ’ s analog por ts. Figure 3-10 Voice C all Routing Default Setting Note the phone port check marks for each telephone number .
3-12 C HAPTER 3: C ONFIGURATION FOR AN IBM-C OMPATIBLE PC R UNNING W INDOWS Note that while you are using the fax machine , for example, you cannot use the telephone to place or r eceive calls because your ISDN line has only one telephone number.
Configuring the 3C882 ISDN Modem for a PC 3-13 T o change the voice call routing setting: 1 Specify which Phone port should handle the calls associated with T elephone Number 1 by checking the appropriate Phone P or t box.
3-14 C HAPTER 3: C ONFIGURATION FOR AN IBM-C OMPATIBLE PC R UNNING W INDOWS 2 Click the Update button if you made an y changes to the 3C882 ISDN modem configuration. 3 Click Exit to lea ve the utility . This completes the ISDN modem configuration procedur e.
Setup Using Windows 95 3-15 Setup Using W indow s 95 This section describes how to set up the 3C882 ISDN modem using Windows 95 Plug and Play . T hese instructions assume that Windows 95, Microsoft Plus!, and the 3C882 ISDN modem software have alr eady been installed.
3-16 C HAPTER 3: C ONFIGURATION FOR AN IBM-C OMPATIBLE PC R UNNING W INDOWS The Install F rom Disk dialog box appears , as shown in F igure 3-14. Figure 3-14 Install From Disk Dialog Bo x 4 Insert the 3ComImpact IQ Windows Installation Diagnostic Utilities diskette into an av ailable floppy drive.
Setup Using Windows NT 3.5.1 RAS 3-17 6 Check Show All Devices . 7 Select 3ComImpact IQ for baud rates of up to 115.2Kbps and click Next . The 3C882 ISDN modem allows for tr ansfer rates of up to 230.
3-18 C HAPTER 3: C ONFIGURATION FOR AN IBM-C OMPATIBLE PC R UNNING W INDOWS 2 Copy the 3C882 ISDN modem MODEM.INF file t o the same directory as the MODEM.ORG file. 3 Fr om the main menu, select Control Panel , and then select Network . The Network Settings dialog bo x appears, as shown in F igure 3-16.
Setup Using Windows NT 3.5.1 RAS 3-19 The Remote A ccess Setup dialog box appears, as shown in F igure 3-17. Figure 3-17 Remote Access Setup Dialog Box 5 If a modem is already configured , select it, and then click Remove . 6 Click Add . The Add P or t dialog box appears.
3-20 C HAPTER 3: C ONFIGURATION FOR AN IBM-C OMPATIBLE PC R UNNING W INDOWS 10 Click Continue . 11 Click OK to exit the Network Settings dialog box. The Network Settings Change alert box appears. 12 Click Restart Now . Once your computer has reboot ed , you are ready to use the 3C882 ISDN modem.
Setup for Windows NT 4.0 3-21 Figure 3-18 Install New Modems Dialog Box 4 Check D on ’t detect my modem, I will select it from a list and click Next .
3-22 C HAPTER 3: C ONFIGURATION FOR AN IBM-C OMPATIBLE PC R UNNING W INDOWS The New Modem Manufacture screen will open, as shown in F igure 3-19. Figure 3-19 Modem Manufacturers and Models Dialog Box Y ou will only see a 3Com entry if you have previously installed a 3Com modem.
Configure Dial-Up Networking 3-23 A dialog box indicates successful setup . 9 Click Finish . This completes the setup procedur e for Windows NT 4.0. Refer to “C onfigure Dial-Up Networking ” belo.
3-24 C HAPTER 3: C ONFIGURATION FOR AN IBM-C OMPATIBLE PC R UNNING W INDOWS If you have not alr eady set up the modem for 230K, refer to “Setup for 230Kbps” for assistance. 5 Click Configure . The 3ComImpact IQ P roperties window opens. 6 Select the appropriate C OM por t and maximum speed av ailable for your c omputer .
Configure Dial-Up Networking 3-25 ■ Subnet Mask (if required) ■ Primary and Alternate DNS Ser ver address T o send and receive e-mail through the Int ernet: ■ E-mail address ■ Mail ser ver add.
3-26 C HAPTER 3: C ONFIGURATION FOR AN IBM-C OMPATIBLE PC R UNNING W INDOWS The Service Provider dialog box opens . 9 Enter the name of your ISP and click Next. The Phone number dialog box opens . 10 Enter the area code , telephone number and (if necessar y) the countr y code of the location you are dialing .
Configure Dial-Up Networking 3-27 The New Phonebook Entry screen opens, as shown in F igure 3-20. Figure 3-20 New Phonebook Entr y Wizar d If you have not y et configured a Dial-Up Networking connection, a message will indicate that your phonebook is empty.
3-28 C HAPTER 3: C ONFIGURATION FOR AN IBM-C OMPATIBLE PC R UNNING W INDOWS Figure 3-21 Phonebook Entr y Screen Y ou now have an opportunit y to verify various settings of your Dial-Up Networking connection. 6 Click More , and selec t “Edit entry and modem proper ties” .
Configure Dial-Up Networking 3-29 8 Choose “PPP: Windows NT , Windo ws 95 Plus, Internet ” from the Dial-up server type drop down box. 9 Check TCP/IP if you are dialing int o an ISP for Internet access.
3-30 C HAPTER 3: C ONFIGURATION FOR AN IBM-C OMPATIBLE PC R UNNING W INDOWS Setup for 230Kbps The 3C882 ISDN modem allows f or transfer rates of up to 230.4 Kbps. Note that some computers requir e the installation of additional hardware , such as an accelerated serial por t card , to take advantage of this higher speed.
Setup for 230Kbps 3-31 4 Fr om the Main menu, select Control Panel , then select Network . The Network Settings dialog bo x appears. 5 Click Configure . The Remote A ccess Setup dialog box appears. 6 Click Configure . 7 Select 3ComImpact IQ 230K . 8 Click OK .
3-32 C HAPTER 3: C ONFIGURATION FOR AN IBM-C OMPATIBLE PC R UNNING W INDOWS 3C882 ISDN modem. T his will set the baud rate t o 230.4 Kbps. Once the baud rate is set to a fix ed amount you will no longer be able to access the Configur ation dialog box to make changes.
Setup for 230Kbps 3-33 This completes the procedur e to change the baud rate to 230.4 Kbps for Windows 95 and Windows NT 4.0. Refer to Chapt er 5, “ Advanced Configuration,” to review the default settings and ensure that they reflect your pref erences.
3-34 C HAPTER 3: C ONFIGURATION FOR AN IBM-C OMPATIBLE PC R UNNING W INDOWS.
4 C ONFIGURATION FOR AN A PPLE M ACINTOSH C OMPUTER This chapter describes the configuration f or the 3C882 ISDN modem for use with an Apple Macintosh computer .
4-2 C HAPTER 4: C ONFIGURATION FOR AN A PPLE M ACINTOSH C OMPUTER Installing the 3C882 Software T o install the 3C882 ISDN modem software in an Apple Macintosh computer: 1 Insert the 3ComImpact IQ Installer Diagnostic Utilities software utility diskette into the floppy drive and then double-click the 3ComImpact IQ Installer icon.
Configuring the 3C882 ISDN Modem for a Macintosh Computer 4-3 Figure 4-3 Successful Installation Message Box 6 Click OK . This completes the software installation. Running the SPID Wizard The SPID Wizard automatically detects your telephone company’ s switch type and configures the SPID(s).
4-4 C HAPTER 4: C ONFIGURATION FOR AN A PPLE M ACINTOSH C OMPUTER The Select Modem Port screen appears, as shown in F igure 4-5. Figure 4-5 Selec t Modem Port Screen 2 Select the por t to which the 3C882 ISDN modem is connected and then click OK . The SPID Wizard star t screen appears, as shown in F igure 4-6.
Configuring the 3C882 ISDN Modem for a Macintosh Computer 4-5 the SPID Wizard is the rec ommended method for configuring your SPID values . 3 Click Next .
4-6 C HAPTER 4: C ONFIGURATION FOR AN A PPLE M ACINTOSH C OMPUTER After the SPID Wizard configures the SPID for the first telephone number , Figur e 4-8 appears. Figure 4-8 Second T elephone Screen for Macintosh 5 If you ha ve a second telephone number f or your ISDN line , enter it and click Next .
Configuring the 3C882 ISDN Modem for a Macintosh Computer 4-7 After your inf ormation has been sent, the Configuration dialog box appears , as shown in Figur e 4-9. Figure 4-9 Configuration Dialog Box for Macintosh The Configuration dialog bo x buttons do the follo wing.
4-8 C HAPTER 4: C ONFIGURATION FOR AN A PPLE M ACINTOSH C OMPUTER are dialing must also support Multilink PPP , or you will get a single B channel connection instead of the dual-channel link.
Configuring the 3C882 ISDN Modem for a Macintosh Computer 4-9 C onfiguring V oice Call Routing The 3C882 ISDN modem allows you t o assign a specific telephone number to a specified analog phone port. By default, telephone number 1 is assigned to phone port one, and telephone number 2 is assigned to phone port two, as shown in F igure 4-10.
4-10 C HAPTER 4: C ONFIGURATION FOR AN A PPLE M ACINTOSH C OMPUTER F igure 4-11. Calls to that telephone number will ring both devices, allowing you to answ er a call using either device.
Configuring the 3C882 ISDN Modem for a Macintosh Computer 4-11 Figure 4-12 Configuration to ring both ports simultaneously T o change the voice call routing setting: 1 Specify which Phone port should handle the calls associated with T elephone Number 1.
4-12 C HAPTER 4: C ONFIGURATION FOR AN A PPLE M ACINTOSH C OMPUTER ■ TEI 1: Number from 64 to 126 ■ SPID 2: Init (if required) ■ TEI 2: Number from 64 to 126 (if required) Before closing the C onfiguration dialog box, do the following . 1 Confirm that the C onfiguration dialog box parameters are correc t.
Configuring Internet Access for a Macintosh Computer 4-13 1 Activat e the PPP control panel by choosing the Apple menu, Control P anels and then PPP . T he PPP control panel opens as shown in . Figure 4-13 PPP Control P anel 2 Configure the PPP c ontrol panel as specified by y our ISP .
4-14 C HAPTER 4: C ONFIGURATION FOR AN A PPLE M ACINTOSH C OMPUTER Figure 4-14 OT/PPP Modem C ontrol P anel 4 Choose the port to which your modem is attached from the Connect via pop up menu. Then select the appropriate modem script file from the Modem menu that best matches your dial up criteria.
Configuring Internet Access for a Macintosh Computer 4-15 6 Open the TCP/IP control panel b y choosing T CP/IP from the PPP pull down menu. The TCP/IP contr ol panel opens as shown in F igure 4-15.
4-16 C HAPTER 4: C ONFIGURATION FOR AN A PPLE M ACINTOSH C OMPUTER Set Up Using F reePPP with Open T ranspor t F reePPP is a freeware application f or accessing the Internet available f or use with Apple ’ s Open T ranspor t networking software (version 1.
Configuring Internet Access for a Macintosh Computer 4-17 The Account scr een will open as shown in F igure 4-17. Figure 4-17 FreePPP A ccount Screen 3 Configure the fields as specified b y your Internet service provider . Generally you would enter the name of your ISP as the Server Name.
4-18 C HAPTER 4: C ONFIGURATION FOR AN A PPLE M ACINTOSH C OMPUTER Figure 4-18 FreePPP C onnection Screen 5 Choose the maximum C OM por t rate av ailable for your computer , and then selec t CTS & RTS (DTR) from the pop up menu, as shown in Figur e 4-18.
Configuring Internet Access for a Macintosh Computer 4-19 7 Choose the port to which your 3ComImpact IQ ISDN modem is attached . Under Modem Init String Settings, click Use : and add at&d0 . Click OK to return to the F reePPP Setup screen. NO TE: Y ou may want to set up unique modem configur ations for each dial up Account pr ofile (i.
4-20 C HAPTER 4: C ONFIGURATION FOR AN A PPLE M ACINTOSH C OMPUTER Figure 4-20 FreePPP TCP/IP C ontrol P anel 9 Choose F reePPP from the C onnect via pop up menu. 10 Choose Using PPP Ser ver from the C onfigure menu (or Manually if specified by your ISP).
5 A DVANCED C ONFIGURATION This chapter presents inf ormation to guide you thr ough advanced configuration options av ailable for the 3C882 ISDN modem. Adv anced C onfigura tion P aramet er Default V alues T o change advanced configuration parameter v alues, you will need terminal emulation software which will allow you to use A T commands.
5-2 C HAPTER 5: A DVANCED C ONFIGURATION QuickSelect The QuickSelect feature (S71=0, by default) automatically detects and implements the protocol required f or each digital call, either V .
Advanced Configuration Parameter Default Values 5-3 the incoming call is dropped . The calling par t y will still hear ringing, and must retry their call. If you have a Multilink PPP c all active and y ou receiv e an incoming v oice call, one of the two B channels will not be assigned to the voic e call until you answ er the voic e call.
5-4 C HAPTER 5: A DVANCED C ONFIGURATION Autobaud enabled unless y ou want to set the baud rate to 230.4 Kbps. The command A T $B (baud rate) is used to set a specific baud rate , such as 230.4 Kbps. Refer to Appendix B for a list of acceptable v alues.
Changing the Parameter Settings 5-5 question mark ( ? ) after the particular value. F or example, to read the status of S register 63, you w ould type AT S63? and then press [Enter] or [Return]. After completing its tasks, the 3C882 ISDN modem sends a message to the screen f ollowed by a r esult code.
5-6 C HAPTER 5: A DVANCED C ONFIGURATION.
6 S UPPLEMENTARY V OICE F EATURES Supplementary V oice F eatures This chapter pro vides an overview of the supplementar y voice featur es which are av ailable for the 3C882 ISDN Modem.
6-2 C HAPTER 6: S UPPLEMENTARY V OICE F EATURES telephone company should pro vide the appropriate commands. The 3C882 ISDN modem will announce a forwarded call by producing a short ring on the telephone that is routed to the forwarded number .
Supplementary Voice Features 6-3 The analog method for disabling Call Waiting , t ypically *70, is not available for ISDN. Instead, you must set the appropriate S Register (S76) to activate or deactiv ate the Call Waiting feature. Refer to Appendix B, “ A T Commands, S Registers, and Result Codes” for the appropriate v alues.
6-4 C HAPTER 6: S UPPLEMENTARY V OICE F EATURES Call Drop Call Drop allows y ou to remov e the last caller to a conference . After a conference call has been established , simply press and release the flash hook button t o drop the last caller added.
Supplementary Voice Features 6-5 If you experience difficulty implementing any of the Supplementar y V oice F eatures, confirm that you have these features enabled on your ISDN line , and that the default Call Conferencing , Call Tr ansfer , and Call Drop S register values (S77, S78, and S79) match the values required by y our telephone company .
6-6 C HAPTER 6: S UPPLEMENTARY V OICE F EATURES This completes the procedur e for P acific Bell ISDN users. Refer to Chapt er 5, “Changing the Paramet er Settings” or Appendix B, “ A T Commands, S Registers, and Result Codes ” for further assistance.
7 P LACING AND R ECEIVING C ALLS This chapter illustrates ho w to place and receive a v ariety of calls with your 3C882 ISDN modem. The 3C882 ISDN modem uses A T commands and S registers for call management.
7-2 C HAPTER 7: P LACING AND R ECEIVING C ALLS Placing Calls A utomatically If you are using standard communications software , select the 3ComImpact IQ ISDN modem. If the 3ComImpact IQ ISDN modem is not listed , select a Hayes ® -compatible modem configuration and dial out through the 3C882 ISDN modem.
Placing ISDN Data Calls 7-3 circuit-switched ISDN modem commands with dial strings are: A T D 1 408 654 2703 A TD14086542703 F or a summar y of the A T command set, see Appendix B. 4 Press [Ent er] or [Return]. After completing its tasks, the 3C882 ISDN modem sends a message to the screen.
7-4 C HAPTER 7: P LACING AND R ECEIVING C ALLS ATD <telephone number> An example is as follows: A TD 1 908 555 1212 Some Internet service providers may require y ou to dial two telephone numbers to place a Multilink PPP call. In this case , the ampersand (&) character is used to dial two telephone numbers.
Receiving ISDN Data Calls 7-5 either via the Configuration dialog box or setting S register 61=0. By setting S register 61=1, all outgoing calls will be T ollMizer calls . Alternatively , you can place T ollMizer calls on a call by call basis using the command A TDD <telephone number>.
7-6 C HAPTER 7: P LACING AND R ECEIVING C ALLS If Auto Answer is enabled , the call is automatically answered and a C ONNECT message, indicating the speed of the connection, is delivered to the RS-232 port. When the 3C882 ISDN modem receives a voice call, the B channel LED(s) flash green and then remain lit once the call is answered .
ISDN Call Logging 7-7 T roubleshooting If both por ts are busy , and Call W aiting has been disabled (i.e., S76), the third incoming call generates a busy signal to the far end.
7-8 C HAPTER 7: P LACING AND R ECEIVING C ALLS This information is cleared upon restarting or power cycling the unit. T o clear the Call Logging information manually , use terminal emulation software to enter the command A TN0.
8 T ROUBLESHOOTIN G This chapter explains how to isolat e and solve problems encountered with the 3C882 ISDN modem. P roblems may stem from incorrect option settings or improper installation. Y our ISDN line provisioning may also affect your 3C882 ISDN modem ’ s per formance.
8-2 C HAPTER 8: T ROUBLESHOOTING Checking the Basics Before y ou monitor the LEDs or ref er to the section on symptoms and solutions, check the follo wing: ■ V erify that the cables are not physically damaged . I f damage is apparent, replace the cable.
Monitoring LEDs 8-3 Monitoring the D Channel LED Obser ve the D channel LED . If you are connected to a live digital ISDN line, the D channel LED remains lit for a f ew minutes after the self-test and then begins to flash.
8-4 C HAPTER 8: T ROUBLESHOOTING communicate at incompatible baud rates. Refer t o “Evaluating Symptoms and Solutions ” below. Monitoring the DTR LED When illuminated , the Data T erminal Ready LED indicates that communication between the 3C882 ISDN modem and your computer has been established .
Evaluating Symptoms and Solutions 8-5 Calls cannot be placed from analog equipment If you cannot place a call, there may be a problem with the configuration of your ISDN line. Calls from an analog port may be blocked. Call the telephone company to verify that your line is configured for circuit-switched voice and data service.
8-6 C HAPTER 8: T ROUBLESHOOTING A connection has been established ( B-1 or B-2 green LED remains lit and you receive a CONNECT message ) but data cannot be sent There is an interoperability mismatch between the local and remote applications.
8-7 ISDN Call Waiting does not work. ISDN Call Waiting is disabled. Your ISDN line is not provisioned for ISDN Call Waiting ISDN Call waiting is disabled on Port 2 by default (S76=1). Use terminal emulation software to change S76 to the appropriate value.
8-8 C HAPTER 8: T ROUBLESHOOTING Microke y Error C o des T able 8-2 lists Microkey error codes, possible causes, and possible solutions regarding installation of the Microkey Com P or t Accelerator card f or Windows 3.x. T able 8-2 Microkey Error Codes and Their Meaning Error Code Possible Cause Solution 1001 Cannot find or copy the file s7comm.
Restoring the 3C882 ISDN Modem to Autobaud 8-9 Restoring the 3C882 ISDN Modem to A utobaud The 3C882 ISDN modem autobauds up to 115 Kbps (b y default) to match your comput er ’ s COM port speed.
8-10 C HAPTER 8: T ROUBLESHOOTING Using On-Line Help The follo wing on-line help is available: ■ F or comprehensive inf ormation about the 3C882 ISDN modem, click the 3ComImpact IQ Help icon in the 3ComImpact IQ program group .
A O RDERING ISDN S ERVICE This appendix describes how to or der ISDN ser vice. If you are ordering ISDN for the first time , you may either hav e 3Com order ISDN service for you, free of charge , or you may choose to call your telephone compan y and order ISDN yourself .
A-2 A PPENDIX A: O RDERING ISDN S ERVICE T o order the ISDN service from the telephone company for the 3C882 ISDN modem: 1 Call the telephone compan y and ask for the ISDN representativ e. 2 T ell the representative that y ou would like to plac e an order for ISDN service for a 3C omImpact IQ Ex ternal ISDN modem.
What Do I Need To Support Supplementary Voice Features? A-3 Some telephone companies may choose to refer to the Flexible C alling features by unique terminology .
A-4 A PPENDIX A: O RDERING ISDN S ERVICE Some telephone companies may choose to refer to the Flexible C alling features by unique terminology . ISDN Line P aramet er T ables Some telephone companies do not recognize ISDN Or dering Codes.
ISDN Line Parameter Tables A-5 A T&T 5ESS Switch NI1 T o order ISDN service for the A T&T® 5ESS switch, supply the telephone company with the inf ormation provided in T able A-2.
A-6 A PPENDIX A: O RDERING ISDN S ERVICE A T&T 5ESS Custom S witch T o order ISDN service for the A T&T 5ESS Custom switch, photocopy and fax T able A-3 to the telephone compan y .
ISDN Line Parameter Tables A-7 Nor thernT elecomDMS 100 S witch T o order ISDN service for the Nor thern T elecom® DMS 100 switch, photocopy and fax T able A-4 to the telephone company . Some telephone companies will only provision one analog voic e port on a DMS 100 switch.
A-8 A PPENDIX A: O RDERING ISDN S ERVICE Siemens EWSD Switch T o order ISDN service for the Siemens® EWSD switch, supply photocopy and fax T able A-5 to the telephone compan y . ** Caller ID is necessary.to employ the Call Logging feature. If you would like to have Call Logging, you must order Caller ID.
B AT C OMMANDS , S R EGISTERS , AND R ESUL T C ODES The 3C882 ISDN modem A T commands are summarized in T able B-1, S registers in T able B-2, and result codes in T able B-3. A T C ommand Set T able B-1 summarizes the A T command set for the 3C882 ISDN modem.
B-2 A PPENDIX B: AT C OMMANDS , S R EGISTERS , AND R ESULT C ODES DD (ATDD5551234) Dials an outgoing TollMizer connection. &D DTR control (AT &D0) &D0 causes ISDN modem to ignore DTR from host. &D1 causes ISDN modem to enter command state on detecting on-off transition of DTR.
AT Command Set B-3 Sn= Write configuration register (AT S60=64) Writes to a specific S register. S Read on-line status: command settings (AT S) Reads the status of any parameters that have been modified through AT commands and provides call status information.
B-4 A PPENDIX B: AT C OMMANDS , S R EGISTERS , AND R ESULT C ODES S Registers T able B-2 provides a complete list and descriptions of the S registers supported by the 3C882 ISDN modem.
S Registers B-5 S58 Terminal Initialization State: Indicates the status of the second TEI using SPID 2. This information is provided only if your carrier requires a second directory number.
B-6 A PPENDIX B: AT C OMMANDS , S R EGISTERS , AND R ESULT C ODES S63 * Voice Call Routing 0 — Calls to either analog port are blocked 1 — Phone #1 to Phone port 1 only; Phone #2 calls blocked 2 .
S Registers B-7 S70 * Dynamic Bandwidth Allocation (DBA): 0 — DBA disabled 1 — DBA enabled for outgoing calls only 2 — DBA enabled for incoming calls only 3 — Enabled for both incoming and outgoing calls (default) S71 B Channel Protocol: 0 — QuickSelect (default) 1 — Async-Sync PPP conversion 2 — V.
B-8 A PPENDIX B: AT C OMMANDS , S R EGISTERS , AND R ESULT C ODES S79 Call Drop: 0 — Disabled 62 — (default) S80 * Multilink PPP: 0 — Disabled 1 — Enabled (default) S82 * Multilink PPP Endpoint Discriminator Class: The 3C882 ISDN modem automatically sets the Endpoint Discriminator Class to 5.
Result Codes B-9 Result C odes T able B-3 lists the 3C882 ISDN modem result codes. T able B-3 3C882 ISDN Modem Result Codes Short Form Long Form Meaning 0 OK Indicates that the most recent command or action was successfully completed. 2 RING Indicates that an incoming call is present and no AT Answer command is outstanding.
B-10 A PPENDIX B: AT C OMMANDS , S R EGISTERS , AND R ESULT C ODES.
C S PECIFICATIONS This appendix describes the physical specifications of the 3C882 ISDN modem and provides the pin assignments of the RS-232 C OM por t, PC serial cable, and Macintosh serial cable.
C-2 A PPENDIX C: S PECIFICATIONS RS-232 C OM Port Pin Specifications The asynchronous RS-232-D C OM por t on the 3C882 ISDN modem, labeled RS-232, is a standard DB-25 female connector . T he 3C882 ISDN modem asynchronous port pin assignments, shown in T able C-1, conform to standard definitions for data communications equipment (DCE).
PC Serial Cable Pin Specifications C-3 PC Serial Cable Pin Specifica tions The DB-25 male to DB-9 f emale pin assignments for the PC serial cable are provided in T able C-2. Macintosh Serial C able Pin Specifications The DB-25 male to 8-pin DIN male pin assignments f or the Macintosh serial cable are provided in T able C-3.
C-4 A PPENDIX C: S PECIFICATIONS.
D C ONFIGURATION U SING DOS C onfigura tion Using DOS T o configure the 3C882 ISDN modem for an IBM PC or compatible computer using DOS, follow these steps .
D-2 A PPENDIX D: C ONFIGURATION U SING DOS The configuration program launches and then the P or t Settings screen appears. T o move the cursor around the screen, use the [Up Arrow] and [Down Arrow] keys. T o select a parameter , use the [Space Bar]. 4 Use the [Space Bar] to select the 3C882 ISDN modem ’ s C OM por t.
Configuration Using DOS D-3 11 Specify which Phone port should handle the calls associated with telephone number one . If you plan to use the 3C882 ISDN modem ’ s analog Phone por ts, you will want to configure v oice call routing by assigning telephone numbers to the analog ports.
D-4 A PPENDIX D: C ONFIGURATION U SING DOS.
G LOSSARY Async-Sync PPP C onv ersion Asynchronous to synchronous PPP con version. The 3C882 ISDN modem converts asynchronous PPP into synchronous (HDL C-based) PPP that can be transpor ted in ISDN B channels to communications ser vers that have int egrated ISDN BRI, PRI, or T1 access lines.
2 G LOSSARY CHAP Challenge Handshake Authentication Pr otocol. CHAP is one of two PPP authentication protocols; P AP is the other . An authentication protocol requests inf ormation to verify a v alid user .
G LOSSARY 3 Firmw are F irmware is the code that resides in the 3C882 ISDN modem and controls its behavior . I t differs from software in the form of programs that run on your computer .
4 G LOSSARY National ISDN An ISDN standard that enables consistency in ISDN ser vice features acr oss different v endors’ equipment and switches for Nor th America. Network terminat or (NT1) A device that terminates the ISDN line. The NT1 is built into the 3C882 ISDN modem.
G LOSSARY 5 T ollMizer Allows you to place a data call o ver a voice channel, saving the extra cost of the data channel. Y our telephone company , ISP , and the device into which you are calling must all suppor t this feature . V .120 A rate adaption scheme that conv er ts transmission rates from a range of 300 bps to 115.
6 G LOSSARY.
Numerics 3C882 specifications C-1 A advanced configuration parameters 5-1 analog equipment installation 2-5 analog port placing calls 7-6 receiving calls 7-6 Apple Macintosh requirements 1-6 Async-S.
analog ports for PC using DOS D-3 analog ports for PC using Windo ws 3-13 Call T ransfer 6-4 Call W aiting T roubleshooting 8-7 Caller ID . See ISDN Call Logging Challenge Handshake Authentication Pro.
receiving 7-5 Data Over V oice. See T ollMizer Data T erminal Ready LED 2-3 Dial-Up Networking Windows 95 3-23 Windows NT 4.0 3-26 DTR LED monitoring 8-4 dynamic bandwidth allocation (DBA) 5-2 dynamic.
Windows NT 4.0 setup 3-20 Internet Setup Wizard 3-24 ISDN 1-1 Information Sheet 1-7 ordering service for A T&T 5ESS Custom A-6 for A T&T 5ESS NI1 A-5 for Northern T elecom DMS 100 A-7 for Siem.
O ordering ISDN service for A T&T 5ESS Custom A-6 for A T&T 5ESS NI1 A-5 for Northern T elecom DMS 100 A-7 for Siemens EWSD A-8 P package contents 1-4 parameter settings changing 5-4 P assword.
S S registers B-4 Self-T est/Status LED 2-2 Send Data (SD) LED monitoring 8-3 Send Data LED 2-3 serial cable installation 2-3 serial port 1-3 connection for Macintosh 2-4 connection for PC 2-4 Siemens EWSD switch A-8 specifications C-1 SPID Wizard 4-3 Switch 56 P ermissive.
Windows NT 3.5.1 3-17 Windows NT 4.0 3-20.
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LIMITED W ARR ANT Y HARDW ARE: 3Com warrants its hardware products to be free from defects in workmanship and materials, under normal use and service, for the following lengths of time from the date o.
WARRANTIES EXCLUSIVE: IF A 3COM PRODUCT DOES NOT OPERATE AS WARRANTED ABOVE, CUSTOMER'S SOLE REMEDY FOR BREACH OF THAT WARRANTY SHALL BE REPAIR, REPLACEMENT, OR REFUND OF THE PURCHASE PRICE PAID, AT 3COM'S OPTION.
IMPORT ANT: Read Before Using This Product 3COM END USER SOFTWARE LIC ENSE AGREEMENT YOU SHOULD CAREFULLY READ THE FOLLOWING TERMS AND CONDITIONS BEFORE OPENING OR USING THIS PRODUCT. IT CONTAINS SOFTWARE, THE USE OF WHICH IS LICENSED BY 3COM CORPORATION (“3COM”) TO ITS CUSTOMERS FOR THEIR USE ONLY AS SET FORTH BELOW.
For civilian agencies: Restricted Rights Legend: Use, reproduction or disclosure is subject to restrictions set forth in subparagraph (a) through (d) of the Commercial Computer Software - Restricted Rights clause at 48 C.F.R. 52.227-19 and the limitations set forth in 3Com's standard commercial agreement for the Software.
FCC CLASS B C ERTIFICATION STATEMENT 3Com Corporation Model No: 3C882 FCC ID: DF63C882 Made in U.S.A. This device complies with Part 15 of the FCC Rules.
CANADIAN NOTICE The Industry Canada label identifies certified equipment. This certification means that the equipment meets certain telecommunications network protective, operation, and safety requirements. The Department does not guarantee the equipment will operate to the users’ satisfaction.
Ein wichtiger Punkt beim Kauf des Geräts 3Com ISDN Modem (oder sogar vor seinem Kauf) ist das durchlesen seiner Bedienungsanleitung. Dies sollten wir wegen ein paar einfacher Gründe machen:
Wenn Sie 3Com ISDN Modem noch nicht gekauft haben, ist jetzt ein guter Moment, um sich mit den grundliegenden Daten des Produkts bekannt zu machen. Schauen Sie zuerst die ersten Seiten der Anleitung durch, die Sie oben finden. Dort finden Sie die wichtigsten technischen Daten für 3Com ISDN Modem - auf diese Weise prüfen Sie, ob das Gerät Ihren Wünschen entspricht. Wenn Sie tiefer in die Benutzeranleitung von 3Com ISDN Modem reinschauen, lernen Sie alle zugänglichen Produktfunktionen kennen, sowie erhalten Informationen über die Nutzung. Die Informationen, die Sie über 3Com ISDN Modem erhalten, werden Ihnen bestimmt bei der Kaufentscheidung helfen.
Wenn Sie aber schon 3Com ISDN Modem besitzen, und noch keine Gelegenheit dazu hatten, die Bedienungsanleitung zu lesen, sollten Sie es aufgrund der oben beschriebenen Gründe machen. Sie erfahren dann, ob Sie die zugänglichen Funktionen richtig genutzt haben, aber auch, ob Sie keine Fehler begangen haben, die den Nutzungszeitraum von 3Com ISDN Modem verkürzen könnten.
Jedoch ist die eine der wichtigsten Rollen, die eine Bedienungsanleitung für den Nutzer spielt, die Hilfe bei der Lösung von Problemen mit 3Com ISDN Modem. Sie finden dort fast immer Troubleshooting, also die am häufigsten auftauchenden Störungen und Mängel bei 3Com ISDN Modem gemeinsam mit Hinweisen bezüglich der Arten ihrer Lösung. Sogar wenn es Ihnen nicht gelingen sollte das Problem alleine zu bewältigen, die Anleitung zeigt Ihnen die weitere Vorgehensweise – den Kontakt zur Kundenberatung oder dem naheliegenden Service.
