Error Control Commands; Es - Error Control And Synchronous Mode Selection - Conexant H08-15355F Reference Manual

3.2.5 Error Control Commands

This section describes parameters used to select and operate the modem in V.42 LAPM or MNP error control mode, Normal
(Buffered) Mode, or V.80 Synchronous Access Mode.

3.2.5.1 +ES - Error Control and Synchronous Mode Selection

This extended-format command specifies the initial requested mode of operation when the modem is operating as the
originator, optionally specifies the acceptable fallback mode of operation when the modem is operating as the originator, and
optionally specifies the acceptable fallback mode of operation when the modem is operating as the answerer. It accepts three
numeric subparameters:
Syntax
+ES=[<orig_rqst>[,<orig_fbk>[,<ans_fbk>]]]
Defined Values
<orig_rqst> Decimal number which specifies the initial requested mode of operation when the modem is
operating as the originator. The options are:
<orig_fbk> Decimal number which specifies the acceptable fallback mode of operation when the modem is
operating as the originator.
<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.
1118
Command Reference Manual
0 Initiate call with Direct Mode.
1 Initiate call with Normal Mode (also referred to as Buffered Mode or Direct Mode) only.
2 Initiate V.42 without Detection Phase. If V.8 is in use, disable V.42 Detection Phase.
3 Initiate V.42 with Detection Phase. (Default.)
4 Initiate MNP.
6 Initiate V.80 Synchronous Access Mode when connection is completed, and Data State
is entered. (See +ESA and +ITF commands.)
0 LAPM, MNP, or Normal Mode error control optional. (Default.)
1 LAPM, MNP, or Direct Mode error control optional.
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.
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 Initiate V.80 Synchronous Access Mode when connection is completed, and Data State
is entered (see +ESA and +ITF commands).
Conexant
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