3Com 3C882 Provided in Table A-4, To order Isdn service for the Northern Telecom DMS, Dynamic

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	Placing the ISDN Order Through Your Telephone Company A-5
Northern	To order ISDN service for the Northern Telecom® DMS 100
Telecom	switch, supply the telephone company with the information
DMS	provided in Table A-4.
100
Switch

Table A-4 Line Conﬁguration for DMS 100

Required Information	Specification

Line Type	Standard (2B+D) National ISDN-1 line
Line Code	2B1Q
Interface Type	U interface with an RJ-45 jack
Directory Numbers	2
Circuit-switched Option	Yes
Bearer Restriction Option	No packet mode data (NOPMD)
Protocol	Functional version 2 (PVC 2)
SPID Suffix	1
Terminal Endpoint Identifier (TEI)	Dynamic
Maximum Keys	64
Ring	No
Key System (EKTS)	No
Voice or Data	Both
Data Option	Lower layer compatibility
Flexible Call Offering (FCO)	Yes*

*FCO (also referred to as Additional Call Offering) allows you to receive an incoming call while a dual-channel Multilink PPP call is active. If you do not want this feature, which may cost extra, FCO is not required.

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Contents 3COMIMPACT IQ External Isdn Modem User Guide 3Com Corporation 5400 Bayfront Plaza Santa Clara, California Year Limited Warranty Contents Placing Isdn Data Calls Conﬁguring Multilink PPPRegisters AT&T 5ESS Custom Switch A-4Support from 3Com E-4 Returning Products for Repair E-4 World Wide Web SiteFigures Main 3C882 Conﬁguration Steps for a Macintosh Pin Descriptions TablesAdvanced configuration Chapter How to Use This GuideAbout this Guide IntroductionConventions Introduction Network Access with the 3C882 Isdn Modem3C882 Isdn Modem Features Easy Installation and Use3C882 Isdn modem provides the following features Protocols High PerformanceIsdn Standards and Interface Ansi V.120 rate adaptionDiagnostics Voice FeaturesWarranty SecurityBefore You Install the 3C882 Isdn Modem 3C882 Isdn Modem Package ContentsApple Macintosh Requirements IBM PC or Compatible RequirementsIsdn Information Isdn Switch TypeIsdn Information Sheet 3ComImpact IQ Isdn ModemBefore You Install the 3C882 Isdn Modem Main hardware installation steps are depicted Installing the 3C882Familiarizing Yourself with the 3C882 Isdn Modem Front Panel LED IndicatorsAs power is supplied to the unit Front Panel LED Indicator DeﬁnitionsColor Description GreenYou will need the following type of serial cable Installing a Serial CableInstalling the Isdn Cable Analog Equipment Connection Installing Analog EquipmentInstalling Analog Equipment Power Cable Connection Installing the Power CableIBM-COMPATIBLE PC Configuration for ANConﬁguring the 3C882 Isdn Modem for a PC Main steps are shown in FigureInstalling the 3C882 Software To install the 3C882 Isdn modem softwareClick OK Running Spid Wizard Double-click the 3ComImpact IQ 3.0 icon shown in FigureYou will see a start message, as shown in Figure First Telephone Number Dialog Box for PC Second Telephone Number Dialog Box for PC Conﬁguration dialog box buttons do the following Click FinishConfiguring the 3C882 Isdn Modem for a PC Appears Click Finish Conﬁguring Multilink PPPConﬁguring Voice Call Routing Conﬁguring the B Channel RateConfiguring the 3C882 Isdn Modem for a PC 11 Conﬁguration for One Telephone Number & Two Devices Verifying the ConﬁgurationConfiguring the 3C882 Isdn Modem for a PC 12 New Hardware Dialog Box Setup Using Windows13 Install From Disk Dialog Box 15 Install New Modems Dialog Box 16 Modem Manufacturers and Models Dialog Box Setup Using Windows NT RAS 18 Remote Access Setup Dialog Box 17 Network Settings Dialog BoxConﬁgure Port dialog box appears Remote Access Setup dialog box appearsConﬁguring the 3C882 Isdn Modem for a Macintosh Computer Configuration for AN Apple Macintosh ComputerClick Continue. -3 appears Message box appearsClick Continue. -4 appears Click OK This completes the software installation procedureSelect Modem Port Screen 3ComImpact IQ Program IconSpid Wizard Start Screen 10 First Telephone Number Screen for Macintosh 11 Second Telephone Screen for Macintosh 12 Successful Conﬁguration Screen Quit. Click Quit to leave the Conﬁguration dialog box Configuring the 3C882 Isdn Modem for a Macintosh Computer 15 Conﬁguration for One Telephone Number per Device Verifying the Conﬁguration Configuring the 3C882 Isdn Modem for a Macintosh Computer Advanced Conﬁguration Parameter Default Values Advanced ConfigurationDBA Baud Rate Auto AnswerSend the command AT $B 230400 to the 3C882 Isdn modem Changing The Parameter SettingsAutobaud Enabled Auto Answer DisabledType AnswerPlacing and Receiving CallsPlacing Isdn Data Calls Placing Calls Manually Placing Calls AutomaticallyPlacing Multilink PPP Calls An example is as follows ATD 1 908 555 1212 & 1 908 555 Placing a 56K TollSaver CallReceiving Isdn Data Calls When the 3C882 Isdn modem receives a voice call,An example is as follows Atdd 1 908 555 Channels ﬂash and then remain litReceiving Voice Calls Using an Analog Phone Port Placing Voice Calls Using an Analog Phone PortChecking the Basics TroubleshootingMonitoring LEDs Monitoring the Test LEDMonitoring the D Channel LED Monitoring the B Channel LEDs Evaluating Symptoms and SolutionsLED remains lit Properly configured You receive a Symptom Possible Cause SolutionCannot be sent Upon power up Previous firmware Do not remain Or application software orFinding More Information Contacting Technical Support Using On-Line HelpDownloading Firmware to Your 3C882 Isdn Modem Following on-line help is availablePlacing the Isdn Order Through 3Com Ordering Isdn ServicePlacing the Isdn Order Through Your Telephone Company Give the representative the 3C882 Isdn modem Isdn codeNumber of Telephone Numbers Package K Package U Table A-1 Isdn Order CodesCircuit-switched Data SwitchTelephone company with the information provided Table A-2Switch Switch, supply the telephone company with the information To order Isdn service for the Northern Telecom DMSProvided in Table A-4 DynamicKey System Ekts Flexible Call Offering FCO Yes † EwsdAT Command Set AT Commands REGISTERS, and Result CodesAnswer mode only Host computer default\Q0 disables flow control Hardware flow control defaultReset AT Z Settings AT \S+++ Enter command state \T0 disables inactivity timer defaultRegisters except S0 are the 3Com extended registers RegistersIsdn Default S65 Isdn Caller ID for Voice Calls for Phone Port S75 Connection Delay Table B-3 lists the 3C882 Isdn modem result codes Result Codes3C882 Isdn Modem Speciﬁcations SpecificationsClear to Send CTS From Isdn modem RS-232 COM Port Pin SpeciﬁcationsPC Serial Cable Pin Speciﬁcations Macintosh Serial Cable Pin SpeciﬁcationsReceive Data RD Send Data SD Configuration Using Conﬁguration Using DOSTo copy the README.TXT ﬁle, at the C\3Com prompt, type Use the Space Bar to select the 3C882 Isdn modem’s COM port Configuration Using DOS On-line Technical Services 3Com Bulletin Board ServiceTechnical Support Call the telephone number nearest you World Wide Web Site3ComForum on CompuServe 3ComFacts Automated Fax ServiceTo use 3ComForum Log on to CompuServe Press Return to see the 3ComForum main menuSupport from Your Network Supplier U.S. and Canada, call 800 876 3266 for customer serviceSupport from 3Com Returning Products for RepairGlossary Async-Sync PPP ConversionChannel COM port Layer Isdn120 Plain old telephone serviceIndex Analog equipment installation 2-6 analog portNumerics Apple macintosh requirements 1-6 Async-Sync PPPRegisters B-4 Serial cable installation Data Using AT commands 6-2 voiceDMS 100 A-5 Result codes B-8Index Limited Warranty Santa Clara, CA 95052-8145 408 3COM END User Software License Agreement For civilian agencies Interference Handbook Canadian Notice  1996, 3Com Corporation