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Chapter 5 – AT Commands, S-Registers, and Result Codes
Multi-Tech Systems, Inc. SocketModem MT5600SMI Developer’s Guide 68
Table 5-10. errorControl Active from 3.5.2/V.58
Value Description
0 Disable/none
1 V.42 LAPM
2 V.42 Alternative protocol (MNP™)
80 MNP10™
Table 5-11. compressionActive from 3.2.2/V.58
Value Description
0 None
1 V.42bis and V.44
80 MNP5™
Table 5-12. callCleared codes from 3.6.4/V.58-1994
Value Description Notes
0 CauseUnidentified Call setup issues
1 No Previous call Not in V.58
2 Call is still in progress Not in V.58
3 Call Waiting signal detected Not in V.58, only if modem can detect it
4 Delayed Same as value 2A, CallAttemptsLimitExceeded
19 InactivityTimerExpired
1F cct108isOffInhibitsDial DTR low
20 cct108turnedOff DTR drop
29 BlacklistedNumber
2A CallAttemptsLimitExceeded Same as “Delayed”, see ETS 300 001
2B ExtensionPhoneOff-hook If extension detection supported
2C CallSetupFailTimerExpired e.g., S7 timeout
2D IncomingCallDetected If incoming call while sending dial command.
2E LoopCurrentInterrupted
2F NoDial tone
31 ReorderTone Fast busy
33 EngagedTone Busy
34 LongSpaceDisconnect And if modem program to abort on long space
3C CarrierLost Signal Converter
3D TrainingFailed
3E NoModulationinCommon
3F RetrainFailed
40 RetrainAttemptCountExceeded
41 GstnCleardownReceived
42 FaxDetected If this was not a fax call attempt
46 InTestMode Test
50 AnyKeyAbort Call Control
51 DteHangupCommand If ATH was used to terminate the previous call.
52 DteResetCommand If ATZ was used to terminate the previous call.
5A FrameReject Error Control
5B NoErrorControlEstablished Error control was required
5C ProtocolViolation
5D n400exceeded LAPM retransmission Count Timer
5E NegotiationFailed
5F DisconnectFrameReceived
60 SabmeFrameReceived
64 LossOfSynchronization Data Compression