Multi Tech Equipment MTA128ST manual Hanging Up, Answering Manually, Answering Automatically

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AT Command, S-Registers, and Result Codes

Answering Manually

If your communication program is in terminal mode when the RING result code appears on your monitor, you can manually answer the call by typing ATA <cr>.

Answering Automatically

To cause the MTA128ST/NT to automatically answer a call:

1.Enable autoanswer by setting register S0to the ring on which you want the TAto answer (e.g., in terminal mode, type S0=4 to make the TA answer on the fourth ring). You also can use either of the configuration utilities to the turn on autoanswer and set the number of rings.

2.Make sure that the TA is offline.

The TA answers the call after the number of rings specified by S0.To disable autoanswer, use a configuration utility or the command S0=0.

Note: If the user wants to accept calls while DTR is low, the TA must be configured to ignore DTR. To do this, enter AT&D0<cr>. With this configuration, the TA can accept calls while DTR is low. If this configuration setting is not made, the TA rejects incoming calls until DTR is high while calls comes in.

Hanging Up

To hang up a call, escape to online command mode (+++AT<cr>), then enter the H command

(ATH<cr>). The escape sequence and hang up command can be combined into one command string:

+++ATH<cr>.

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Contents Page Revision Date Description Model MTA128ST/NT S000305C Rev. CTrademarks Contents Product Description Introduction and DescriptionNT1 Connection FeaturesSpid Service Profile ID Isdn BRI LineInterlace Pin TE SignalPin LED Indicators LED P1 LED P2 LED Connectors Switch CompatibiltiyLED Indicators Command InterfaceSafety Warnings Hardware InstallationConnecting your TA Connect the TA to Your PC RS-232 Connection Before You Start Configuration UtilitiesNetwork Configuration IntroductionVoice TEI Call Control ConfigurationDialing Numbers COM Port SettingsDCD Drop Time Configuring your TA Page Page Page Page Page Page Page Page AT Commands MTA128S T/NT Commands and S-RegistersAT Commands by Function Register Summary Digital Data Call Commands aAnalog Pots Call Commands RegistersAT Commands, S-Registers, and Result Codes Result Codes Using AT Commands to Operate the MTA128ST/NTAnswering a Call Making a CallAnswering Manually Hanging UpAnswering Automatically Introduction Troubleshooting the TASpecific Troubleshooting Situations Troubleshoot ingDebugging/Logging/Troubleshooting Command Summary AT Debugging/Logging/Troubleshooting CommandsDebugging/Logging/Troubleshooting S-Registers None of the LEDs light when the MTA128ST/NTis onMTA128ST/NT does not respond to commands You can place data calls but not voice calls or vice versa MTA128ST/NT dials but cannot make a connectionFile transfer appears slower than it should be MTA128ST/NT cannot connect when answeringYou cannot place two simultaneous data calls MTA128ST/NT disconnects while onlineApple Macintosh Compatibility Dynamic Bandwidth Allocation DBA Bonding Using the &, I and + CharactersMaking PPP/MLPPP Connections Software Applications that can Format PPP DataDBA Data Protocols DBA Features Bandwidth-on-Demand BOD-S60, S61, S62, and S63PPP/MLPPP Warranty Warranty, Service, and Tech SupportRepair Procedures for U.S. and Canadian Customers Repair Procedures for International Distributors Replacement PartsQuick Setup Factory Profiles AppendixAConfiguration ProfilesQuick Setup Example Appendix B Ordering Your Isdn Li ne Bearer ServiceLoop Qualification Using Isdn Ordering Codes IOCs Capability S previously Generic Data M J3 previously Generic Data J-1DNM5 previously Generic Data M-1DN Ordering Isdn Without IOCs Appendices Appendices FCC AppendixC FCCand Canadian RegulationCanadian Limitations Notice Using AT Commands to Configure the MTA128ST/NT AppendixD Configuration MethodsFirmware-based Configuration Utility Configuration via AT CommandsGlossary SymbolGlossary IETFInternet Engineering Task Force PPPMultilink Protocol or MP-is an Internet Glossary TA-Seeterminal adapter Information pages from a central resource. See also Isdn Canadian Regulation 56 Appendix IndexUart