Westermo IDW-90 AT - Manual (Page 14)

14 6620-3200
<orig_fbk> Decimal number which specifies the acceptable fallback mode of
operation when the modem is operating as the originator.
0 LAPM, MNP, or Normal Mode error control optional. (default)
1 Not supported.
2 LAPM or MNP error control required; disconnect if error control
is not established.
3 LAPM error control required; disconnect if error control is not
established.
4 MNP error control required; disconnect if error control is not
established.
<ans_fbk> Decimal number which specifies the acceptable fallback mode of
operation when the modem is operating as the answerer or specifies
V.80 Synchronous Access Mode.
0 Not supported.
1 Error control disabled, use Normal Mode.
2 LAPM, MNP, or Normal Mode error control optional. (default)
3 LAPM, MNP, or Direct Mode error control optional.
4 LAPM or MNP error control required; disconnect if error control
is not established.
5 LAPM error control required; disconnect if error control is not
established.
6 MNP error control required; disconnect if error control is not
established.
8 Not supported.
9 Not supported.
Example:
AT! +ES=3 Enable V.42 with Detection Phase originator.
Disable V.80 Synchronous Access Mode originator.
AT!+ES=,,2 Allow LAPM, MNP, or Normal Mode connection answerer.
Disable V.80 Synchronous Access Mode answerer.
AT!+ES=3,,2 Enable V.42 with Detection Phase originator, allow LAPM, MNP,
or Normal Mode connection answer.
Disable Synchronous Access Mode originator and answerer.
Reporting Current or Selected Values
Command: AT!+ES?
Response: +ES: <orig_rqst>,<orig_fbk>,<ans_fbk>
Example: +ES: 3, 0, 2 For default settings.
Reporting Supported Range of Parameter Values
Command: AT!+ES=?
Response: +ES: (<orig_rqst> range),(<orig_fbk>range),(<ans_fbk>range)
Example: +ES: (0-4, 6, 7), (0-4), (0-6, 8, 9)