3Com OfficeConnect 3C892 User Manual
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3Com OfficeConnect 3C892 User Manual

3Com OfficeConnect 3C892 User Manual

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Part No. 984/000023-3
Published February1999
OfficeConnect
ISDN LAN Modem
3C892
User Guide
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Summary of Contents for 3Com OfficeConnect 3C892

  • Page 1 OfficeConnect ISDN LAN Modem ® 3C892 User Guide http://www.3com.com/ Part No. 984/000023-3 Published February1999 ®...
  • Page 2 If there is any software on removable media described in this documentation, it is furnished under a license agreement included with the product as a separate document, or in the hard copy documentation. If you are unable to locate a copy, please contact 3Com and a copy will be provided to you.

  • Page 3: Table Of Contents

    ABLE OF ONTENTS BOUT UIDE How to Use This Guide Conventions Year 2000 Compliance NTRODUCTION Introduction Applications Local Networking with Access to the Internet Local Networking with Access to a Remote Office Local Networking with Access to the Internet and a Remote Office Features Ease of Installation and Use High Performance...
  • Page 4 Understanding Multilink PPP and BACP/BAP Understanding Dynamic Bandwidth Allocation Understanding VPNs and PPTP Package Contents Before You Install the ISDN LAN Modem Front Panel LED Description Installing the ISDN LAN Modem Wall Mounting the ISDN LAN Modem Using Rubber Feet and Stacking Clips TCP/IP Setup Using Windows 98 and Windows 95 TCP/IP Setup Using Windows NT 4.0 TCP/IP Setup Using Mac OS 7.6 or later...
  • Page 5 For Windows 98 and 95 Users For Windows NT 4.0 Users For Macintosh Users For Windows 3.11 Users Configuring the ISDN LAN Modem for the Typical Configuration Configuring a Static IP Address on the ISDN LAN Modem ISDN LAN Modem Main Page Links from the Illustration Links from the Buttons DVANCED...
  • Page 6 Setting Up Your ISDN Line Manually Locking and Unlocking the Configuration Configuring the ISDN LAN Modem from a Remote Location Supplementary Voice Services Call Waiting Caller ID Flexible Calling Call Conference (Three-Way Calling) Message Service/Voice Mail Call Forwarding Placing Calls Placing a Call Automatically Placing a Call Manually Receiving Calls...
  • Page 7 Connect/Disconnect threshold for the second B channel ROUBLESHOOTING AND Checking the Basics Monitoring LEDs Monitoring the ALERT LED Monitoring the ISDN LED Monitoring the B Channel LEDs Monitoring the LAN Port Status LEDs Troubleshooting Problems Indicated by LEDs Evaluating Symptoms and Solutions Finding More Information Contacting Technical Support Downloading Firmware to Your ISDN LAN Modem...
  • Page 8 ISDN LAN M ISDN LAN M Year 2000 Compliance If You Place Your ISDN Order Through 3Com If You Place Your ISDN Order Through the Telephone Company Supplementary Voice Features Included with U, EZ-ISDN-1, V and EZ-ISDN 1A Limitations of ISDN Ordering Codes U, EZ-ISDN 1, V and EZ-ISDN 1A...

  • Page 9: About This Guide

    About This Guide provides an overview of this guide, describes guide conventions, and tells you where to look for specific information. This guide describes how to install and configure the OfficeConnect ISDN LAN Modem and provides descriptions of key applications and networking concepts. This guide is intended for end users with no presumed level of expertise.

  • Page 10: Conventions

    The OfficeConnect ISDN LAN Modem is Year 2000 compliant. Specifically, its system clock is capable of accepting and storing dates including and beyond the year 2000. For information on Year 2000 compliance and 3Com products, visit the 3Com Year 2000 Web page: http://www.3com.com/products/yr2000.html...

  • Page 11: Introduction

    This chapter provides an overview of the OfficeConnect referred to throughout this document as the ISDN LAN Modem. Introduction The ISDN LAN Modem is an easy to install, LAN to WAN modem. For the LAN, it provides four 10BASE-T Ethernet connections— expandable to 25 connections. Refer to Figure 1 for an example showing 10 connections by adding an 8-port 10BASE-T Ethernet hub.

  • Page 12: Local Networking With Access To A Remote Office

    1: I HAPTER NTRODUCTION Local Networking with Users can share access to a remote office LAN while continuing to network locally. Access to a Remote Office Figure 2 Local Networking with Access to a Remote Office Local Networking with Users can share access to a remote office and the Internet while continuing to Access to the Internet network locally.

  • Page 13: Features

    Features Ease of Installation and Use High Performance Connectivity Routing SPID Wizard automatic configuration for telephone company switch and service profile ID (SPID) numbers. Web-based, point-and-click user interface for configuration and online help. Automatic configuration verification with Internet connection through your Internet Service Provider (ISP).

  • Page 14: Bandwidth Management

    1: I HAPTER NTRODUCTION Bandwidth Management Remote Management Voice Features Protocols Automatic call connection (also known as dial-on-demand routing). Automatic disconnection of idle calls after a specified length of time. Bandwidth on Demand using Bandwidth Allocation Control Protocol (BACP)/Bandwidth Allocation Protocol (BAP) based on a specified threshold. Dynamic bandwidth allocation (DBA), which allows you to place or receive a voice or data call while a Multilink PPP call is active.

  • Page 15: Isdn Standards And Interface

    Compatibility with Lucent, Northern Telecom and Siemens switches. Security PAP, CHAP and MS-CHAP support on both single-channel and Multilink PPP calls. Upgradability Flash memory for field firmware updates. Firmware posted on 3Com’s Web site. Diagnostics LED status display. Statistics display. Warranty Lifetime Limited Warranty (refer to the back of this User Guide for details).
  • Page 16 1: I HAPTER NTRODUCTION...

  • Page 17: Isdn Lan Modem

    ISDN LAN M This chapter provides a description of the key functionality of the ISDN LAN Modem. It includes the following topics: For a basic understanding of ISDN and networking, refer to Appendix A. Connection Types The ISDN LAN Modem provides LAN side and WAN side connections. LAN Side Connection On the LAN side, up to four users can connect to the LAN Modem’s built in Ethernet hub, or up to 25 users may connect to the LAN Modem via an external...

  • Page 18: Application Sharing Over The Lan

    2: ISDN LAN M HAPTER ODEM Figure 5 ISDN LAN Modem Single Workstation Connection Example Application Sharing over the LAN Most operating systems such as Windows 98 and 95 and Macintosh provide the capability for users on the LAN to share applications, files and printers among computers.

  • Page 19: One High Speed Connection To A Single Location

    Alternatively, the B channels can be combined using Multilink PPP to form one One High Speed Connection to a Single high-speed connection to a single location. Figure 7 shows a single high-speed Location connection to a remote office LAN. Figure 7 One High-Speed Connection to a Single Location Up to 25 users can share a connection to the same location over the single connection created by Multilink PPP.

  • Page 20: Call Routing Protocol And Ip Address Translation

    2: ISDN LAN M HAPTER ODEM Call Routing Protocol This section describes the call routing protocol used by the ISDN LAN Modem and and IP Address explains how IP addresses are translated. Translation Placing a Call to a To illustrate how the ISDN LAN Modem routes outgoing data calls, let us assume Previously Defined that you have set up the following types of service providers.

  • Page 21: Call Routing While One Call Is Already Connected

    Figure 9 IP Address Translation Call Routing While One Call Is Already Connected If the ISDN LAN Modem has established a call to a remote destination, for instance, to an ISP, and the ISDN LAN Modem receives more packets, then the ISDN LAN Modem looks at the Network ID of the packets for proper routing.

  • Page 22: Multilink Ppp Configuration Options

    2: ISDN LAN M HAPTER ODEM and agrees to use BAP, then the Bandwidth Allocation Protocol (BAP) negotiates the addition and removal of the second B channel with the peer equipment based on a user-defined threshold. A key advantage of BACP/BAP is that it provides a higher probability of establishing a Multilink PPP call during high traffic conditions by providing a specific telephone number for the second B channel to call.

  • Page 23: Understanding Vpns And Pptp

    In order to establish a tunnel, the client side must be able to dial into a PPTP tunnel Setting Up the Server server on the remote private network such as 3Com’s NETBuilder, PathBuilder, and Side of the Tunnel Total Control Hub as well as Microsoft’s Windows NT server version 4.0 or later. If you use Windows NT 4.0, then Service Pack 3 or greater and RAS must be...

  • Page 24: For Windows Dial-Up Networking Users

    Each workstation that wishes to have access to the remote private LAN will need to create its own tunnel. For more information, refer to: http://www.remoteaccess.3com.com/support/docs/lanmodem/ welcome.html For specific instructions on how to configure a VPN adapter in Windows 98, 95 or Windows NT, refer to Microsoft’s Web site at http://www.microsoft.com.

  • Page 25: Hardware Description And Installation

    RJ-45 outlet. If you have not yet ordered ISDN service, refer to Appendix E. A JavaScript-enabled and frames-capable Web browser. A Web browser is provided on the 3Com Companion Programs CD-ROM. (For more information refer to Appendix B.) If you use a different Web browser, make sure that it supports frames such as Netscape 2.1 and later and Internet Explorer 3.0 and...

  • Page 26: Front Panel Led Description

    Flashes when the LAN Modem is receiving data on that port. Off indicates the unit does not detect the Ethernet link integrity signal. The Ethernet cable may not be properly connected or the cable may be the wrong polarity. ISDN LAN Modem 3C892...

  • Page 27: Back Panel Connector Description

    The back panel provides the following components. Back Panel Connector Description Figure 12 ISDN LAN Modem Back Panel From left to right the back panel consists of the following. Installing the ISDN This section describes how to do the following. LAN Modem Before You Begin Before you begin, you will need the following in addition to the ISDN LAN Modem...

  • Page 28: Installing The Isdn Cable

    3: H HAPTER ARDWARE ESCRIPTION AND Installing the ISDN Cable To install the ISDN cable: 1 Connect the RJ-45 (8-pin) connector end of the ISDN cable to the port labeled ISDN on the back panel, as shown in Figure 13. Figure 13 ISDN Cable Connection 2 Connect the RJ-11 (6-pin) connector end of the RJ-45/RJ-11 ISDN cable to the RJ-11 or RJ-45 ISDN wall jack.

  • Page 29: Connecting To Another Ethernet Hub

    CAUTION: You should only have one computer physically connected to the ISDN LAN Modem during configuration. Once you complete the configuration process, connect any other computers you would like to have on the LAN and then power cycle each computer. If the newly-added computers cannot communicate with the ISDN LAN Modem, refer to You can connect to another Ethernet hub to allow up to 25 users to access the Connecting to Another...

  • Page 30: Installing Analog Equipment

    3: H HAPTER ARDWARE ESCRIPTION AND Installing Analog You can connect an analog touch-tone telephone, answering machine, fax Equipment machine, or external analog modem to the ISDN LAN Modem. You will need an RJ-11 to RJ-11 cable that is supplied with the analog device for each analog phone port connection.

  • Page 31: Installing The Power Cable

    To install the power cable: Installing the Power Cable 1 Connect the ISDN LAN Modem power module cable to the 10-18 VDC power connector on the back panel of the ISDN LAN Modem, as shown in Figure 17. Figure 17 Power Cable Connection 2 Plug the other end of the power module into a surge-protected standard 110 VAC wall outlet.

  • Page 32: Using Rubber Feet And Stacking Clips

    3: H HAPTER ARDWARE ESCRIPTION AND WARNING: Only wall mount single units. Do not wall mount stacked OfficeConnect units. Using Rubber Feet and Stacking Clips Attach the feet to the marked areas at each corner of the underside of your ISDN LAN Modem to stabilize your ISDN LAN Modem and prevent sliding.

  • Page 33: Setting U Ptcp/Ip For Windows And Macintosh

    This chapter describes how to set up the Windows and Macintosh operating system (OS) TCP/IP stack. Your computer must have a TCP/IP stack in order to use the ISDN LAN Modem. If you already have TCP/IP installed and set up on your computer, then go on to Chapter 5.
  • Page 34 4: S TCP/IP HAPTER ETTING Figure 20 Select Network Component Type Dialog Box 3 Select Protocol and then click Add. The Select Network Protocol dialog box appears. Figure 21 Select Network Protocol Dialog Box 4 From the Manufacturers list box, select Microsoft, and then from the Network Protocols list box, select TCP/IP.
  • Page 35 Figure 22 Network Dialog Box 8 From the TCP/IP Properties dialog box, select the IP Address tab. Figure 23 TCP/IP Properties Dialog Box 9 Most users need to select Obtain an IP address automatically because most LANs use dynamic IP addresses. If your LAN uses static IP addresses, enter the IP address and subnet mask.

  • Page 36: Tcp/Ip Setup Using Windows Nt

    4: S TCP/IP HAPTER ETTING Figure 24 Advanced Parameters of TCP/IP Properties 11 Click OK to close the TCP/IP Properties dialog box. 12 Click OK to close the Network dialog box. 13 Restart Windows 98 or 95 to let these changes take effect. TCP/IP Setup Using Windows NT 4.0 provides TCP/IP as part of its standard operating system.
  • Page 37 Figure 25 Windows NT Protocols Configuration Window 3 Click Add. The Select Network Protocol dialog box appears as shown in Figure 26. Figure 26 Select Network Protocol Dialog Box 4 Select TCP/IP Protocol and then click OK. The following message appears. Figure 27 DHCP Message Box 5 Select the appropriate response for your network.
  • Page 38 4: S TCP/IP HAPTER ETTING Figure 28 Network Protocols Group Box 8 Click Close. The Microsoft TCP/IP Properties window appears, as shown in Figure 29. Figure 29 Microsoft TCP/IP Properties Window 9 From the Adapter drop down list box, select the Ethernet card that is connected to the ISDN LAN Modem.

  • Page 39: Tcp/Ip Setup Using Mac Os 7.6 Or Later

    TCP/IP Setup Using If you are using Macintosh operating system version 7.6 or later, Open Transport Mac OS 7.6 or later (OT) PPP is provided and installed by default. If you did not install OT PPP when you installed your system software, perform a custom installation of your system software and install OT PPP version 1.1 or later.

  • Page 40: Tcp/Ip Setup Using Windows 3.11

    Setting Up TCP/IP Using To set up MS_TCP, do the following. MS TCP 1 Install MS_TCP, located on the 3Com Companion Programs CD-ROM, onto your hard drive. 2 From the Program Manager, click Network. Figure 31 Program Manager Group Box 3 From the Network group box, click Network Setup.
  • Page 41 Figure 33 Network Setup Dialog Box 9 After the installation is complete, click Close. 10 Click OK. 11 From the MS TCP/IP Configuration dialog box, check the Enable Automatic DHCP Configuration check box and then click OK. 12 Restart your PC to allow the changes to take effect. TCP/IP Setup Using Windows 3.11...
  • Page 42 4: S TCP/IP HAPTER ETTING INDOWS AND ACINTOSH...

  • Page 43: Configuring The Isdn Lan Modem

    This chapter describes how to configure the ISDN LAN Modem for the typical configuration. The typical configuration covers the basic setup and includes what most users need to get up and running. It provides instructions for setting up your ISDN line and connecting to the Internet. If you followed the instructions in the Getting Started Guide, you have already set up the typical configuration.

  • Page 44: You Should Have This Information

    5: C ISDN LAN M HAPTER ONFIGURING THE CAUTION: You should only have one computer physically connected to the ISDN LAN Modem during configuration. Once you complete the configuration process, connect any other computers you would like to have on the LAN and then power cycle each computer.

  • Page 45: Setting Up Your Computer If You Have A Static Ip Address

    If your computer has a static IP address, you must verify and possibly change some Setting Up Your Computer If You Have a settings on your computer before you begin the configuration procedure. The Static IP Address ISDN LAN Modem must be your gateway and one of your DNS servers. Follow the procedure in the appropriate section to make sure that this is the case.

  • Page 46: For Macintosh Users

    5: C ISDN LAN M HAPTER ONFIGURING THE You are asked to restart your computer. 11 Click OK. For Macintosh Users 1 From the Apple menu, open Control Panels. Double-click TCP/IP. 2 Choose Ethernet from the Connect via drop-down list box, if not already chosen. The Configure drop down list box should be set to Manually if you are on a static network.

  • Page 47: Configuring The Isdn Lan Modem For The Typical Configuration

    Configuring the ISDN To configure the ISDN LAN Modem for the typical configuration, do the following. LAN Modem for the If you are using static IP addressing, you may need the IP address which you Typical Configuration recorded previously in the “Setting Up Your Computer If You Have a Static IP Address”section.
  • Page 48 5: C ISDN LAN M HAPTER ONFIGURING THE Figure 36 Set Password Window 3 Enter a password in the Password field and then enter the same password in the Password (repeat) field to confirm it. If you do not wish to enter a password, leave the fields empty.
  • Page 49 Configuring the ISDN LAN Modem for the Typical Configuration If you have not ordered your ISDN line, click Abort and then Click Yes to confirm that you want to abort the SPID Wizard program. The ISDN LAN Modem configuration main page appears. After you have an ISDN line installed, refer to “Setting Up Your ISDN Line Manually”...
  • Page 50 For all the latest, up to date information about your ISDN LAN Modem, visit http://www.remoteaccess.3com.com/support/docs/lanmodem/welcome.html If you cannot access a Web site and your computer has a static IP address, refer to “Configuring a Static IP Address on the ISDN LAN other problems, refer to Chapter 9, “Troubleshooting and Maintenance.”To return...

  • Page 51: Configuring A Static Ip Address On The Isdn Lan Modem

    9 Click Continue to go to the ISDN LAN Modem Web site where you should register the product and view the ReadMe file which contains the latest information. For all the latest, up to date information about your ISDN LAN Modem, visit http://www.remoteaccess.3com.com/support/docs/lanmodem/welcome.html Configuring the ISDN LAN Modem for the Typical Configuration http://3com.oc.lanmodem/ “Editing Service Provider...

  • Page 52: Isdn Lan Modem Main Page

    5: C HAPTER ONFIGURING THE ISDN LAN Modem The ISDN LAN Modem main page is shown in Figure 39. From this page you can Main Page access configuration parameters as well as place and receive calls. Bookmark this page for easy access. Alternatively, if you are using the ISDN LAN Modem Web browser, click Configure Modem from the Links menu bar.

  • Page 53: Links From The Buttons

    Links from the Buttons Context-sensitive help is available in the bottom frame of each configuration screen. To increase the size of the help frame, drag the pane separator up. This chapter covers the typical configuration steps required for a basic understanding of your ISDN LAN Modem functionality.
  • Page 54 5: C ISDN LAN M HAPTER ONFIGURING THE ODEM...

  • Page 55: Advanced Configuration

    Modem Web browser, enter: DVANCED ONFIGURATION Setting up additional service providers Editing service provider profiles Associating service providers with workstations Configuring LAN parameters Changing data call parameters Changing voice call routing Reserving DHCP addresses Changing your password Locking the configuration http://3com.oc.lanmodem...

  • Page 56: Setting Up Additional Service Providers

    6: A HAPTER DVANCED ONFIGURATION Setting Up Additional A service provider is a location outside of your LAN that you would like to access Service Providers from your LAN, such as an ISP for access to the Internet or a private network such as a remote office LAN.

  • Page 57: When To Select Private Network

    When to Select Private Network Select private network when you want to connect directly to a remote, private LAN such as a corporate network, shown in Figure 41. For instance, if you want to dial into your main office from home in order to access the servers at your office for e-mail, printing, and so on, then select private network as the type of service provider you want to configure.
  • Page 58 6: A HAPTER DVANCED ONFIGURATION Figure 42 ISP Service Provider Selection Window 3 Click Select. The Internet Service Provider Parameters window appears. Figure 43 ISP Parameters Window 4 In the Name field, enter a name for this remote destination, such as the name of the ISP.
  • Page 59 6 In the Alternate Number field, you can either enter an alternative number or, if required by your ISP, a second telephone number to establish a Multilink PPP call. To enter a second, alternative telephone number for your ISP that will be automatically dialed (if, for example the first number is busy) select Alternate and then enter the telephone number in the Number field.

  • Page 60: Setting Up A Connection To A Private Network

    6: A HAPTER DVANCED ONFIGURATION are being connected unintentionally as a result of packets generated by your workstations. 15 For Enable Intelligent NAT, leave the default setting, which is Yes, in order for the LAN Modem to better support Internet applications and games. The ISDN LAN Modem delivers all unsolicited TCP/UDP packets to the workstation that is currently communicating with the remote host that has generated these packets.
  • Page 61 Setting Up Additional Service Providers Figure 44 Private Network Service Provider Selection Window 2 Select New Private Network from the drop-down list box and then click Select. The Private Network Parameters window appears. Figure 45 Private Network Parameters Window...
  • Page 62 6: A HAPTER DVANCED ONFIGURATION 3 In the Name field, enter a name for this remote destination, such as the name of the location of the office. You may want to add an additional description if you have more than one account with this private network. 4 In the Telephone Number 1 field, enter the telephone number you must dial in order to reach this remote office.

  • Page 63: Associating Service Providers With Workstations On The Lan

    12 Under Miscellaneous, indicate whether or not you would like to use data compression when transferring data by selecting the appropriate radio button. 13 Under Miscellaneous, leave the default, NAT enabled, unless you are certain you want to disable it. With NAT enabled, the ISDN LAN Modem translates IP addresses between the computers on the LAN and the ISP, allowing all LAN users access to a single ISP.

  • Page 64: Editing Service Provider Profiles

    6: A HAPTER DVANCED ONFIGURATION If you have more than one ISP configured, all calls will be routed to the first ISP listed. To connect to another ISP that you have configured, uncheck the box(es) of the ISP(s) that you do not wish to use at this time. To change the association between service provider connections and a particular computer on the LAN, do the following.

  • Page 65: Restricting Workstations From Accessing Service Provider(S)

    Restricting If you want to restrict a workstation(s) on the LAN from accessing a service Workstations from providers(s), do the following. Accessing Service Provider(s) 1 click Workstation Parameters from the ISDN LAN Modem home page. 2 Select the workstation from which you want to limit access. 3 Clear the check boxes located next to the names of the service provider(s) you want to restrict from accessing that service provider over the LAN.

  • Page 66: Ip Address And Subnet Mask

    6: A HAPTER DVANCED ONFIGURATION IP Address and Subnet Mask The IP address is a unique address which identifies the ISDN LAN Modem on a network. The default address (192.168.1.1) is a private IP address which will be translated automatically by the ISDN LAN Modem for Internet access. You should leave the default unless you are certain that this value must be changed.

  • Page 67: Configuring The Lan Parameters

    To configure LAN parameters, do the following. Configuring the LAN Parameters 1 From the ISDN LAN Modem main page, click the ISDN LAN Modem graphic. 2 In the IP Address field, review the default and enter a different IP address if required.

  • Page 68: Understanding Data Call Parameters

    6: A HAPTER DVANCED ONFIGURATION Understanding Data Call The Data Call Parameters window, shown in Figure 47, contains the following Parameters fields. Figure 47 Data Call Parameters Window Minimum Call Duration The minimum call duration is the minimum length of a call that is measured and must be satisfied before a call is disconnected.

  • Page 69: Connect/Disconnect Threshold For The Second B Channel

    Connect/Disconnect Threshold for the Second B Channel If you specified that you want to use the second B channel only when needed, indicate the percentage of bandwidth utilization on the first B channel which must be reached before the second B channel is allocated, or below which the first B channel must fall before the second B channel is removed.

  • Page 70: Changing Voice Call Routing

    6: A HAPTER DVANCED ONFIGURATION Changing Voice Call This section describes how calls are routed to analog equipment attached to the Routing ISDN LAN Modem’s voice ports and provides instructions for changing the way voice calls are routed. Understanding How By default, incoming voice calls to telephone number 1 are routed to Phone port Calls Are Routed 1, and incoming voice calls to telephone number 2 are routed to Phone port 2.

  • Page 71: Reserving Dhcp Addresses

    2 Specify which Phone port should handle calls associated with Telephone Number 1 by checking the appropriate phone port box. 3 If your ISDN line has two telephone numbers, specify which phone port should handle calls associated with Telephone Number 2. 4 Click Submit.

  • Page 72: Changing Your Password

    6: A HAPTER DVANCED ONFIGURATION Changing Your To change the password you defined as part of the initial setup to restrict access to Password the ISDN LAN Modem, do the following. 1 From the ISDN LAN Modem main page, click the Password button. 2 Enter your new password in the Password field.

  • Page 73: Locking And Unlocking The Configuration

    To set up your ISDN connection, do the following. 1 From the ISDN LAN Modem main page, click ISDN Parameters. The ISDN Parameters window appears. Figure 51 ISDN Parameters Screen 2 From the ISDN Switch Type drop-down list box, select the ISDN Switch Type required by your telephone company.

  • Page 74: Configuring The Isdn Lan Modem From A Remote Location

    6: A HAPTER DVANCED ONFIGURATION To unlock the configuration, do the following. 1 Click Continue. The Enter Password window appears. 2 Enter your password to access the ISDN LAN Modem configuration program. 3 Click Submit. The ISDN LAN Modem main configuration page appears. Configuring the ISDN This section provides instructions for dialing into to your ISDN LAN Modem from a LAN Modem from a...
  • Page 75 Configuring the ISDN LAN Modem from a Remote Location 7 Right click this new icon with your right mouse button and choose Properties. 8 Click the Server Type tab. For Windows 95 users: PPP, Windows 95, Windows NT 3.5, Internet should be chosen in the Type of Dial-Up Server list box.
  • Page 76 6: A HAPTER DVANCED ONFIGURATION...

  • Page 77: Supplementary Voice Call Services

    Supplementary Voice The ISDN LAN Modem supports the following supplementary voice services. Services Before You Begin In order to use these services, they must also be supported on your ISDN line. Refer to Appendix E for ordering codes which support these features and then call your telephone company if you want to have these services added.

  • Page 78: Call Waiting

    To change the default setting, do the following. Waiting 1 Go to the ISDN LAN Modem’s main configuration page http://3com.oc.lanmodem/ 2 Click ISDN Parameters. 3 Locate Call Waiting Enable, and then clear the check box for the port(s) for which you want Call Waiting disabled, or check the box for the port(s) for which you want Call Waiting enabled.

  • Page 79: How To Use Call Waiting

    To use Call Waiting, do the following. How to Use Call Waiting Table 1 How Do I Answer a call using Call Waiting? Switch back to the first call? Toggle back and forth between the two calls? End a call when I hear the Call Waiting tone (instead of putting the call on hold)? Disconnect a call on hold?

  • Page 80: Caller Id

    Caller ID Blocking disabled. For instance, if you check the box labeled Port 1, calls made from the telephone connected to that port will not display the telephone number to the user at the far end. 4 Click Submit. OICE ERVICES http://3com.oc.lanmodem/ http://3com.oc.lanmodem/...

  • Page 81: Flexible Calling

    Call Transfer from telephones connected to either ISDN LAN Modem phone port. To enable or disable Flexible Calling, do the following. 1 Go to the ISDN LAN Modem’s main configuration page http://3com.oc.lanmodem/ 2 Click ISDN Parameters. 3 Next to Flexible Calling Enable, select the telephone number check box(es) for which you would like Flexible Calling enabled.

  • Page 82: Call Conference (Three-Way Calling)

    7: S HAPTER UPPLEMENTARY Call Conference Call Conference (also referred to as Three-Way Calling or TWC) allows you to add (Three-Way Calling) another party to an existing call. This feature can be used whether you have received or have placed the first call. You cannot conference two incoming calls.

  • Page 83: Message Service/Voice Mail

    ISDN LAN Modem. To change the default setting, do the following. 1 Go to the ISDN LAN Modem’s main configuration page http://3com.oc.lanmodem/ 2 Click ISDN Parameters. 3 Locate Message Service Enable, and then select the check box for the telephone number(s) for which you want Message Service enabled, or clear the boxes for the telephone number(s) for which you want Message Service disabled.
  • Page 84 7: S HAPTER UPPLEMENTARY OICE ERVICES...

  • Page 85: Placing , Receiving And Disconnecting Calls

    3Com assumes no liability for phone charges or other expenses incurred in connection with the use of this product. Placing a Call...

  • Page 86: Placing A Call Manually

    8: P HAPTER LACING ECEIVING AND Placing a Call You can also manually place a call to an existing service provider or to a Manually destination that has not been previously defined as long as the remote location provides an IP address dynamically during call setup. Placing a Call Manually To place a call manually to a service provider that is already configured, do the to an Existing Service...

  • Page 87: Participating In A Temporary Call

    9 Specify the B channel rate or select TollMizer. Leave the B channel rate set to 64 Kbps unless your telephone company and the locations you will be connecting to only support 56 Kbps. TollMizer sends a data call over a voice circuit allowing you to save the typical cost difference between a voice and data call.

  • Page 88: Receiving Voice Calls

    By default this feature is disabled. To enable, do the following. 1 Go to the ISDN LAN Modem’s main configuration page: http://3com.oc.lanmodem/ 2 Click ISDN Parameters. 3 Locate Distinctive Ringing and then click the box labeled Enable.

  • Page 89: Disconnecting Calls Automatically Using Timers

    Disconnecting Data Calls There are a number of ways by which you can configure calls to be disconnected Disconnecting Calls Automatically Using automatically. You can set timers and disconnect thresholds from the Data Call Timers Parameters window. Specifically, the parameters you can set are as follows. Minimum Call Duration Enter the minimum length of a call that is measured before the ISDN LAN Modem detects inactivity on the connection and then starts an inactivity timer.
  • Page 90 8: P HAPTER LACING ECEIVING AND ISCONNECTING ALLS...

  • Page 91: Troubleshooting And Maintenance

    This chapter explains how to isolate and solve problems encountered with the ISDN LAN Modem. Problems may stem from incorrect option settings or improper installation. This chapter covers the following main topics. CAUTION: There are no user-serviceable parts inside your ISDN LAN Modem. Unauthorized opening of the unit will void the warranty.

  • Page 92: Monitoring Leds

    9: T HAPTER ROUBLESHOOTING AND Monitoring LEDs If you are experiencing operational inconsistencies, monitor the ALERT, ISDN, B channel and LAN port status LEDs to isolate problems. Refer to Table 5 for instructions to resolve the problem. Monitoring the ALERT Press and release the Reset button and observe the ALERT LED.

  • Page 93: Troubleshooting Problems Indicated By Leds

    **3265# from a telephone connected to a LAN Modem phone port A previous firmware download Download the firmware. Refer to was not completed successfully. http://www.remoteaccess.3com.com/support/ docs/lanmodem/welcome.html download instructions. Firmware download process was Do not remove power plug. Wait until the LEDs stop aborted.

  • Page 94: Evaluating Symptoms And Solutions

    If you are using Netscape, launch your Web browser. From the Options menu, select General Preferences. From Browser Starts With, select Home Page Location and then enter a URL such as http://www.3com.com. Your Web browser may be configured to use a proxy server, instead of the LAN Modem.
  • Page 95 Table 6 Symptoms, Causes, and Solutions Symptom Possible Cause ISDN LAN Modem has assigned all available IP addresses. The LAN Modem seems to be NetBIOS is making DNS requests placing calls inadvertently. causing the LAN Modem to initiate a call. Although multiple service You may not have configured the providers are configured, all...
  • Page 96 9: T HAPTER ROUBLESHOOTING AND Table 6 Symptoms, Causes, and Solutions Symptom Possible Cause Calls from the analog port may be blocked. A computer on the LAN was The ISDN LAN Modem has not replaced with another one and released the IP address for the now the newly added previous computer and therefore computer cannot...
  • Page 97 ISDN LAN Modem and then turn the LAN Modem power off and then on again. Once it is powered up, launch your web browser and go to the LAN Modem's main page at http://3Com.oc.lanmodem/ Add the following command to the Sportster modem init string: AT ~~L0.
  • Page 98 9: T HAPTER ROUBLESHOOTING AND Table 6 Symptoms, Causes, and Solutions Symptom Possible Cause Attempted to place a voice call over a directory number that is already in use for a data call. If this is the case, your ISDN line is configured to allow only one B channel per directory number.
  • Page 99 Table 6 Symptoms, Causes, and Solutions Symptom Possible Cause Sending e-mail is occasionally A limitation of NAT, the SMTP slow when more than one server uses a different port workstation is sending e-mail number than the one requested to the same SMTP server. by the workstations sending e-mail so the LAN Modem does not know which of the 2 (or...

  • Page 100: Finding More Information

    For more information about the ISDN LAN Modem, such as frequently asked Information questions and specific technical notes go to the following URL: http://www.remoteaccess.3com.com/support/docs/lanmodem/welcome.html and then bookmark this site for quick and easy access. If you are using the ISDN LAN Modem custom browser, click Updates from the menu bar.

  • Page 101: Reviewing Statistics

    Current Call Last Call Service Provider Description Displays product identification number such as 3C892. Displays the serial number of the ISDN LAN Modem. Displays the MAC address of the ISDN LAN Modem. Displays the firmware version of the ISDN LAN Modem.

  • Page 102: Understanding Isdn Information

    9: T HAPTER ROUBLESHOOTING AND Understanding ISDN The ISDN statistics provided are as follows. Information Layer 1 status: Indicates whether layer 1, the physical connection, of the ISDN line is up or down. If layer 1 remains down after you attempt to place a call, there may be a problem with your ISDN line.

  • Page 103: Understanding Last Call Information

    Table 10 Current Call Information Description Current Call Information Calling telephone or port number Called telephone number Reason for call coming The last call information for both B channels (that is, call 1 and call 2) is as follows. Understanding Last Call Information Table 11 Understanding Last Call Information Last Call Information...

  • Page 104: Understanding Service Provider Information

    9: T HAPTER ROUBLESHOOTING AND Last Call Information Called telephone number Reason for call going down Reason for call coming Understanding Service The following Service Provider information is provided after a call has ended. Provider Information Table 12 Service Provider Information Description Service Provider Information Number of successful connections...

  • Page 105: A Networking Primer

    ETWORKING RIMER This chapter provides a description of basic networking concepts and terminology to help you better understand the key functionality of the ISDN LAN Modem. What is a network? A network is a set of computers and other devices such as printers, modems, and scanners that are connected together either directly via physical cables or indirectly via dial-up telephone services.

  • Page 106: How Does A Lan Connect To A Wan

    A: N PPENDIX ETWORKING RIMER How does a LAN connect You can connect a LAN to a WAN through a number of devices such as a router or to a WAN? a bridge that can place a call to the remote LAN using a dial-up telephone service such as ISDN.

  • Page 107: How Do Different Devices Communicate With Each Other

    Figure 56 Two Simultaneous Connections The B channels may also be combined using the Multilink PPP feature to allow one higher speed connection to a single location as shown in Figure 57. Figure 57 Using Multilink to Combine B Channels for a Single High-Speed Link How do different Once the computers are physically connected in a network, they must run some devices communicate...

  • Page 108: What Is An Ip Address

    A: N PPENDIX ETWORKING RIMER An IP address is a 32 bit address used by TCP/IP to uniquely identify the location of What is an IP Address? a device on a network. Note that the IP address does not refer to the device itself. If, for example, you relocate a PC to another area of the same network, you may need a new IP address.

  • Page 109: What Is Dhcp

    What is a network? Dynamic Host Configuration Protocol automatically assigns a unique, temporary IP What is DHCP? address to a newly attached computer on an IP network. What is DNS? Domain Name Service translates the common alphabetic name into the numeric IP address.
  • Page 110 A: N PPENDIX ETWORKING RIMER...

  • Page 111: Sing The Custom Web Browser

    An Internet Explorer Web browser tailored for use with your ISDN LAN Modem is provided on the 3Com Companion Programs CD-ROM. You may prefer to use this browser as it has been customized for your ISDN LAN Modem, as shown in Figure 59, making it easier to use.

  • Page 112: Using Favorites

    SING THE USTOM Using Favorites Under the Favorites menu, a subcategory labeled 3Com sites lists several helpful sites already bookmarked for you. These include: Installing the Custom If you already have a version of the Internet Explorer Web browser installed and...
  • Page 113 ISDN LAN M EFAULTS Table 13 LAN Parameters LAN Modem IP Address Subnet Mask DHCP Server NetBIOS filtering Voice Call Routing Calls to Telephone 1 Calls to Telephone 2 Use Data Compression Use NAT Bandwidth on Demand Connect/Disconnect Threshold for 2nd B channel Connect Delay Disconnect Delay...

  • Page 114: Isdn Lan Modem Factory Defaults

    C: ISDN LAN M PPENDIX ODEM ACTORY EFAULTS...

  • Page 115: Isdn Lan Modem Specifications

    ISDN LAN M Refer to Table 14 for the ISDN LAN Modem specifications. Table 14 Network Interface Network (ISDN) Connector Facility Interface Code ISDN Interface Type LAN Interface Physical Dimensions Length Width Height Environmental Operating Range Operating temperature Relative humidity Power Input Output...

  • Page 116: Year 2000 Compliance

    The OfficeConnect ISDN LAN Modem is Year 2000 compliant. Specifically, its system clock is capable of accepting and storing dates including and beyond the year 2000. For information on Year 2000 compliance and 3Com products, visit the 3Com Year 2000 web page: http://www.3Com.com/products/yr2000.html...

  • Page 117: Rdering Isdn Service

    RDERING If you are ordering ISDN for the first time, refer to “If You Place Your ISDN Order Through 3Com” to have 3Com order ISDN service for you, free of charge. To call your telephone company and order ISDN yourself, refer to “If You Place Your ISDN Order Through the Telephone Company.”...

  • Page 118: Placing Your Order

    If your telephone company does not recognize these Bellcore Capability Packages or ISDN Codes, call 1-800-343-3266 and have 3Com order your ISDN line for you. 3 Ask to have the following extra services enabled on your second line if you want support on both telephone numbers for the service indicated (automatic support for these services is provided on your first telephone number only.

  • Page 119: Supplementary Voice Features Included With U, Ez-Isdn-1, V And Ez-Isdn 1A

    Supplementary Voice Package U or EZ-ISDN 1 includes automatic support on telephone number 1 for Features Included with the following supplementary voice features, which are also supported by the ISDN U, EZ-ISDN-1, V and LAN Modem: EZ-ISDN 1A Package V or EZ-ISDN 1A includes automatic support on telephone number 1 for all of the above features, plus Voice Mail.

  • Page 120: Supplementary Voice Services On Telephone Number 1 Only

    E: O ISDN S PPENDIX RDERING ERVICE Supplementary Voice Services on Telephone Number 1 Only There may be a charge for adding these services to your line. Check with your telephone company. If You Must Have If you must have the ability to place a circuit-switched data and voice call Simultaneous Voice and simultaneously on the same telephone number, you can do the following, Data Capability on Both...

  • Page 121: For Nortel Dms-100 ® Switches

    If your telephone company does not allow piecemeal additions to your line provisioning (for example, ACO and FCO are not available on a Lucent 5ESS Custom Switch), 3Com recommends that you change your line to Package U or ® Switches...

  • Page 122: Table Of Isdn Ordering Code Capabilities

    Capability on Both Numbers?” Table of ISDN Table 15 lists the exact supplementary voice services included under Capability Ordering Code Packages U, EZ-ISDN 1, V and EZ-ISDN 1A, 3Com’s recommended ISDN Ordering Capabilities Codes for use with the ISDN LAN Modem. Table 15...
  • Page 123 LOSSARY B channel Bearer channel. In ISDN communications, a B channel transmits data or voice traffic at a rate of up to 64 Kbps. Basic Rate Interface. A BRI line is one of two access methods to the ISDN; PRI is the other.
  • Page 124 ISDN LAN Modem with the U interface. An NT1 is built into the ISDN LAN (NT1) Modem with the U interface (3C892). Password Authentication Protocol. PAP is one of two PPP authentication protocols supported by the ISDN LAN Modem; CHAP is the other. An authentication protocol requests information to verify a valid user.
  • Page 125 Primary Rate Interface. A PRI line is one of two access methods to the ISDN; BRI is the other. In North America, each PRI consists of twenty-three 64 Kbps B channels and one 64 Kbps D channel. router A router is a device that links networks. SPID Service Profile Identifier.
  • Page 126 LOSSARY...
  • Page 127 NDEX analog equipment installation 30 B channel LEDs 92, 93 BACP 21, 123 bandwidth on demand parameters 89 BAP 21, 123 call conference 82 call forwarding 83 call routing analog ports 71 call transfer 82 call waiting 78 configuring 78 using 79 caller ID 80 blocking 80...
  • Page 128 NDEX support for Internet games 15 unlocking the configuration 73 voice call routing changing 70 understanding 70 voice features . See supplementary voice services. voice mail 83 See also message service. 83 warranty 15 year 2000 compliance 116...
  • Page 129 If it appears that any product that is stated to meet this standard does not perform properly with regard to such date data on and after January 1, 2000, and Customer notifies 3Com before the later of April 1, 2000, or ninety (90) days after...
  • Page 130 (48) hours of installation but no later than thirty (30) days after the date of purchase, and this is verified by 3Com, it will be considered dead- or defective-on-arrival (DOA) and a replacement shall be provided by advance replacement.
  • Page 131 If trouble is experienced with this device, for repair and warranty information, please refer to the Technical Support insert. In the event of device malfunction, all repairs should be performed by 3Com or an authorized agent. It is the responsibility of users requiring service to report the need for service to our company or to one of our authorized agents.

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