Multi-tech-systems BL-Series Manual do Utilizador Página 149

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149
Appendix H - V.25bis Operation
V.25bis Mode AT Commands
The following commands will either alter standard V.25bis behavior (so you must be careful in their
use) or they are not allowed, as indicated. All other commands can be used in V.25bis operation.
A Not Allowed
A/ Not Allowed
A: Not Allowed
D Not Allowed
D...N Not Allowed
$D Alters Operation ($D1 in V25bis is direct call mode)
E Alters Operation
&F Alters Operation (removes modem from asynchronous V.42bis mode)
N Not Allowed
N...N Not Allowed
O Not Allowed
P Not Allowed
T Not Allowed
U Not Allowed
W Not Allowed
X Alters Operation (X0 no connect message, X1 connect message)
, Not Allowed
; Not Allowed
! Not Allowed
@ Not Allowed
+++AT<CR> Not Allowed
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)
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