Appendix G Isdn Reference, Isdn Overview | NETGEAR XM128 ISDN

Appendix G

ISDN Reference

This appendix explains ISDN technical terms. The appendix also provides you with forms to assist you when working with your local telephone company to set up ISDN services to use with your Model XM128 ISDN Digital Modem.

ISDN Overview

ISDN is a global system that provides a variety of high-speed digital communication solutions, while maintaining compatibility with existing analog voice, modem, data, and fax protocols.

ISDN is based on various standards that define communications between switches and the equipment that connects to the switches. These standards allow most types of equipment to communicate across different types of switches in every part of the world. Implementation of network switches by telephone companies differs from country to country.

In North America, a separate ISDN standard called National ISDN (NI-1) is currently being adopted by network providers and equipment manufacturers. When fully implemented, NI-1 will make installation of ISDN equipment much easier. Currently, many different types of custom signaling protocols are used. Therefore, you must configure your Model XM128 modem for the type of signaling that is used by your network.

In the rest of the world, Digital Subscriber Signaling Number 1 (DSS1) is widely deployed with minor differences from country to country. In Germany, there is an old ISDN system called 1TR6, which will be replaced gradually by DSS1.

ISDN Reference

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NETGEAR XM128 ISDN manual Appendix G Isdn Reference, Isdn Overview

Contents

USA NETGEAR, Inc Statement of Conditions TrademarksEN 55 022 Declaration of Conformance Certificate of the Manufacturer/Importer Bestätigung des Herstellers/ImporteursVCCI-2 Statement Customer Support World Wide Web Bulletin Board Service Contents Reference Guide for the Model XM128 Isdn Digital Modem Error Correction and Data Compression with Chapter Advanced Isdn Appendix a Technical Specifications Appendix E Connector Pin Assignments Figures Xii Tables Xiii Tables 10-1 Table F-1 Xvi Tables Purpose Preface Special Message Formats ConventionsUse of Enter, Type, and Press Related Publication Manual contentsOther Conventions DSU Manuals Chapter Introduction Features Reference Guide for the Model XM128 Isdn Digital Modem Interface Options Front PanelInterface options Label Color Activity Description LED descriptionsPWR DSR DTRRTS CTS Rear panel of the Model XM128 modem with S interface Rear Panel Rear panel components PowerLabel Description ON/OFFPage Package Contents Chapter Installation Model XM128 modem connections Installing the Modem Verifying Hardware Installation Page Selecting the Appropriate Windows 95 Driver INF file Setup for Windows 95 and Windows NT Click on Close Configuring Your Isdn Line and Network Chapter ConfigurationConfiguring Your Modem Using a Terminal Program Terminal programs Understanding AT CommandsOperating system Program Unix Supported AT command types Quick Tips for Issuing AT CommandsType of AT command Example Using AT Commands to Verify Modem Response Communication Speed SetupResult codes commands Command Description Switches supported by the Model XM128 modem Switch Type Setup for North America Type ATSPIDO=n and Enter Spid Setup for North America Entering DNs Setup for Europe and the United Kingdom AT commands for setting MSN AT commands for setting protocolsProtocol AT command Multiple subscriber number AT command Chapter Async to Sync PPP Internet and Remote Access PPP and SlipMaking Async to Sync PPP and Slip calls Keeping a Line Connection During Idle Time Model XM128 modem modem responds Answering Async to Sync PPP calls Making a call using Multilink PPPMultilink PPP Endpoint Discriminator Dialing Pre-stored Phone NumbersS85 register values Value Description Call Bumping Dynamic Channel Allocation Page Dialing Out Using Isdn Mode Commands for Outgoing CallsChapter Isdn Overview Manually Switching Communication Modes Dialing Out Using Isdn Mode Optional Speech Bearer ServiceDialing Out for Analog Adapter Port Call placing commands Dialing commandsAT Command Dial string it maps to Placing the Call Digital Data Commands for Incoming Calls Determining the Packet Length Commands for assigning Isdn numbers Answering a Call Using MSN Best-effort Call Answering Data over Speech Channel Best-effort call answering bit commands Ambiguity Resolution Switch for Voice CallsCommand Function Multi Auto-Answering of Data Calls Understanding Isdn Communication Protocols Isdn protocol specificationsParameter 110 120 AT Command Description Configuration commandsIsdn Communications Answering a V.110 Call Selecting V.120 for German National Isdn 1TR6 Selecting V.120 for European Isdn DSS1 Switch Making a V.120 Call Answering a V.120 Call Dialing in V.120 Mode Identifying Your Line Provisioning Kbps Speeds Answering an X.75 Call Isdn Communications EuropeMaking an X.75 Call Making a Bundled Call with Dialing Prestored Phone Numbers Bundle Connection with V.42bis Data Compression Page Call Control for DSS1 Chapter Advanced Isdn Register values and functions Control of Outgoing Service IndicatorS108+n= Function Control of Isdn Phone Numbers and Subaddresses Outgoing low-layer compatibility commandsS108.n= Function Reference Guide for the Model XM128 Isdn Digital Modem Call Control for 1TR6 Old German Isdn Control of EAZ Endgeräteauswahlziffer Command Function Answering a Call for DSS1 Answering a Call Best-effort Call Answering Answering a Call for 1TR6 Multi-Auto-Answering of Data Calls Ambiguity Resolution Switch for Voice Calls Data Call Indication Disable Inbound Call Connection Placing a Call Point-to-Point ConfigurationPlacing a Call for DSS1 Placing a Call for 1TR6 User-To-User Information Page Chapter Analog Call Handling Frequently used AT commands AT Commands for Analog CallsFrequently used AT commands European switches AT Command Description of command Placing a Call from the Analog Adapter Making and Receiving Analog Calls Accepting an Incoming Call Upgrading with Flash Eprom Chapter Modem UpgradeDefinitions for the d modifier Modifier Definition Kernel Mode Upgrade Instructions Power-on Self-test Chapter TroubleshootingTest Sequence Test Description Isdn Loopback test AT&T9 Loopback TestsLoopback with Self-test AT&T10 B1/B2 Loopback with Self-test Diagnostic Command Using The Embedded Protocol Analyzer Modem Reset Capturing the Protocol Data Setting up the Embedded EPA Commands for analyzing captured data EPA CommandsAnalyzing the Captured Data Atct Key Function Description Control key functionsPage General Specifications Appendix a Technical SpecificationsNetwork Protocols and Standards Compatibility Security Physical Specifications Power AdapterEnvironmental Specifications Data Compression Security Types and Levels Appendix B Security Functions Level 2 Security Level 1 SecurityTable B-1 Types of security Type 1 Security Type 2 Security Level 3 Security Setting and Modifying PasswordsTable B-2 Levels of security Level Table B-3 Auto callback commands Nonpassword Auto Callback FunctionAT*GC0 AT*GC1 Operation Mode of the DTE Interface Appendix C AT Command Set ReferenceSimplex Mode Table C-1 Basic AT command set AT Command DescriptionsCommand Options Function and description CE1 CE0CH? CL? CP1 CP0Dtmf USA Model XM128 modem returns result code SPID0 Description of ATI3 OutputSPID1 SPID? Table C-3 Extended AT& command set Table C-2 ATI3 command outputOutput parameter Output value description Result Codes Knn =phone number Table C-4 Extended AT* command set Table C-4 lists the extended AT* command set Appendix D Status Registers and Result Codes Viewing and Setting S-Registers Examples for Setting S-Registers Setting S-Registers Table D-1 Binary conversion table Table D-2 Setting bitBit Binary Decimal Hexadecimal Value Operation Example Decimal Hexadecimal Binary Register Descriptions Command Function and description DefaultTable D-3 Basic S-registers ATSn=x Table D-4 Extended S-registers ATSn=x See also S-register ATX2 ATX3 ATX4 ATX1 S24= Bitmapped register S35= Bitmapped register When Data/Voice is pressed Do not send low-layer compatibility Enables loopback 4 test DCA function is enabled Reference Guide for the Model XM128 Isdn Digital Modem Reference Guide for the Model XM128 Isdn Digital Modem Reference Guide for the Model XM128 Isdn Digital Modem Message handling systems MHS Reference Guide for the Model XM128 Isdn Digital Modem Speed is greater than 19200 bps ATXn Result Code Option Table Table D-5 ATXn command setting options Connect Table D-6. Result code chart Result Code Chart Symbol ReferenceSupported Table D-7 Result code field descriptions Result Code Field DescriptionsField name Possible values Table D-8 Connect strings Connect Strings for Error Corrected ConnectionsPage RJ-45 Plug and Connector Appendix E Connector Pin Assignments RCV + XMT + Pin Assignment Table E-3. RJ-11 connector pin assignments RJ-11 Plug and ConnectorPage Appendix F Serial Port Interface Signal/pin description Signal direction Signal nameRS-232 Serial Interface Table F-1 Serial port interface Table F-2 Asynchronous flow control cable connection Asynchronous Cable ConnectionsTXD RXD RTS CTS DSR CD DCD DTR Isdn Overview Appendix G Isdn Reference Basic Rate Interface Out-of-Band Signaling Isdn Basic Rate Interface Points Terminal Adapter or Digital Modem Spid Setup Ordering Isdn Service Reference Guide for the Model XM128 Isdn Digital Modem Table G-1 Isdn line configuration Order Form for AT&T 5ESS Switch NI-1 Isdn Table G-2 Isdn line configuration Order Form for DMS-100 Switch NI-1 or Custom Isdn Order Form for Ewsd NI-1 Isdn Table G-3 Isdn line configuration Numerics Index Isdn Reference Guide for the Model XM128 Isdn Digital Modem Reference Guide for the Model XM128 Isdn Digital Modem