Black Box MD1641A, MD1640A manual 25bis Responses Result Codes, 25bis AT Commands

SERIES II INTELLIGENT DATA/FAX MODEMS

V.25bis Responses (Result Codes)

When in V.25bis mode (the AT$V1 command executed), your modem provides you with several responses which can help you follow the progress of V.25bis operations. These are similar to the Result Codes associated with AT Command mode operation. The V.25bis responses are in the form of three-character mnemonics as listed below:

INC	Incoming Call (same as RING indicator)
VAL	A valid V.25bis command has been attempted
DLCt	Call delayed for t minutes (number on Delayed list)
CFlrr	Call failure indicator where rr equals:
		et - Engaged tone (same as BUSY)
		nt - Call Answered but No Answer Tone
		ab - Call Not Answered
		fc - Number on Forbidden List
		ns - Number not stored in memory
		ua - User Abort
		nd - No Dialtone
		ff - Forbidden List full
LSNmm;dd...dd		Phone number in V.25bis memory
LSDmm;dd...dd		Phone number on the Delay list
LSFmm;dd...dd		Phone number on the forbidden list
CON ssss		Connection at ssss speed (if X1 in effect)

V.25bis AT Commands

The AT commands associated with V.25bis mode are described as follows. Note that one command enables and disables V.25bis mode and the rest are only operable in the V.25bis mode.

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