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Nortel Networks CTA 500dm manual Answer Command

Models: CTA 500dm

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Answer Command

46 AT commands

BUSY Appears when the connection was not completed due to detection of a busy indication in the network.

ERROR Appears when the command was issued while in the On- line Command State, if a stored dial string was speciÞed and the dial string was empty, or if the CTA 500dm is out-of-sync and the network is unavailable.

Answer Command

The Answer Command

A

instructs the CTA 500dm to answer an incoming call immediately. Successful completion of this command does not necessarily indicate the establishment of a rate adaptation call using both B- channels, but it refers to the establishment of the channel.

Any additional characters on the command line are ignored.

The Answer Command can be aborted by the reception of a single character if the character is received before the command is complete.

Result Codes

CONNECT rate When the call is answered, the connect indication displays along with the rate of the connection to the network (not the rate of the connection between the CTA 500dm and the attached computer) either 56,000 or 64,000 bit/s.

Immediately after this indication displays, the device enters the data mode.

OK Appears when the command is aborted by the assertion of DTR and if &D is either 1, 2 or 3 (see ÒSerial Interface Control LinesÓ on page 56 for more details).

ERROR Appears when the command is issued while in the On-line Command State, if there is no incoming call, or if the CTA 500dm is out-of-sync with the ICS.

NO CARRIER Appears when connection is not established due to an error or an abort.

CTA 500dm On Line Guide

P0873832 Issue 05

Image 46

Nortel Networks CTA 500dm manual Answer Command

Contents

CTA 500dm The CTA 500dm in the Digital NetworkUsing a CTA 500dm compliant Norstar TAPI Service Provider, the Applications CTA 500dm feature summary About this documentFirst-time setup See Installing CTA 500dm and Norstar TAPI Service Provider softwareP0873832 Issue 6 First-time setupCTA 500 dm On Line Guide Installation and setup Wall mounting the CTA 500dm Compact ICS Setting up the ICSModular ICS Setting up the PC Conﬁguration ¥ Installing CTA 500dm and Norstar TAPI Service Provider software¥ ConÞguring the PC serial port Installing CTA 500dm and Norstar TAPI Service Provider software Conﬁguring the PC serial port8. Click OK Conﬁguring the CTA 500dm if not conﬁgured during installation Conﬁgure CTA 500dm to access PP/MP data calls Adding multiple CTA 500dm conﬁgurations Uninstalling the CTA 500dm Upgrading the CTA 500dm software18 Conﬁguration P0873832 IssueCTA 500dm On Line Guide Installing Norstar TAPI SP Conﬁgure TAPI dialing propertiesInstalling Personal Call Manager Using PCM for the ﬁrst time P0873832 Issue 22 Installing Norstar TAPI SPCTA 500dm On Line Guide ¥ Connecting to Resources on the Dial-Up Server ¥ Installing Dial-Up Server ¥ Allowing access to your PC¥ Connecting to a Windows 95 Dial-Up Server Resource sharingInstalling Dial-Up Server Allowing access to your PCConnecting to a Windows 95 Dial-Up Server Connecting to Resources on the Dial-Up Server Note Windows Explorer displays the new drive letter 7. Click OK CTA 500dm On Line Guide28 Resource sharing P0873832 IssueCTA 500dm On Line Guide ¥ TCM Ports Protocol Selection commands AT commands¥ General commands ¥ S-registers commands ¥ Call Control commands ¥ Serial Interface commands ¥ Serial Interface Control Lines commandsProﬁle commands summary ProﬁleLoad Stored Proﬁle Load Stored Proﬁle on Start-upState Write Active Proﬁle to MemoryState commands summary Return to On-line Data State Enter Download StateGeneral General commands summaryEscape Sequence set echo command 36 AT commandsCommand turn echo on defaultRequest Identiﬁcation View Parameters Set Local EchoSave Dial String Display Saved Dial StringResult Code Suppression Control Verbose ControlCTA 500dm responsesÓ on page S-registers S-register commands summaryCall Monitoring Result Code Selection Set S-Register Query S-RegisterS-register set Dial Command Call Control commands summaryCall Control Press any key before the call is completed to abort the Dial Command Answer Command Outgoing Call Bearer Service Control Hook CommandOutgoing Call Control commands summary Outgoing Call ControlIncoming Call Control Channel Speed ControlIncoming Voice Bearer Call Rate Incoming Call Control commands summarymessages. See ÒBearer CapabilitiesÓ on page 81 for more information Speech Bearer Call Answer Control Audio Bearer Call Answer ControlData Bearer Call Answer Control Ringing IndicationsTCM Ports Protocol Selection TCM Port Protocol Selection CommandRate Adaptation Protocol Selection CTI MUX Mode MP command summaryRate Multiplier Serial Interface Serial Interface commands summarySerial Interface Rate Set Parity Set Data BitsSet Stop Bits Serial Interface Control LinesThe Flow Control Command Serial Interface Control Lines commands summaryFlow Control sets the method of ßow control on the interface between theOK Appears when the value is supported DCD Operation DTR OperationCTS Operation DSR Operation Calling Line IDRI Operation Result Codes Calling Line ID commands summaryCalling Line ID Delivery Control Calling Line ID QueryCaller ID Security Add Number Caller ID security commands summaryCaller ID Security Mode Selection select CLID security modeView List Delete NumberClear List See ÒView ParametersÓ on page 38 for more informationSummary of AT commands AT commands data bearer service 68 AT commandsCommand defaultAT commands P0873832 Issue 70 AT commandsCommand DescriptionPower problem? TroubleshootingLED problem? AT command problem? ¥ See ÒSet Local EchoÓ on page 38 for more informationData call problem? ¥ Check that you are subscribing to an MP capable service Canadian & US Safety Installation Instructions Please Read Carefully AppendixImportant Safety Instructions 1. Read and understand all instructionsCANADIAN AND US REGULATIONS 15. Save these instructionsFor Class A Host equipment EMI/EMCFor Class B Host equipment Address for warranty and repairs in the United States WARRANTY INFORMATIONAddress for warranty and repairs in Canada Rate adaptation protocol speciﬁcations ¥ Point-to-Point Protocol ¥ Multilink PPPBearer Capabilities CTA 500dm LED Numeric CTA 500dm responses Initialization stringsDB-25 and DB-9 signal summary DB-25 connectionAcronyms used in this document LEDÑLight Emitting Diode