V.80 At Command Set; V.80 At Commands - Compaq 244100-005 - Deskpro 2000 - 16 MB RAM White Paper

Compaq V.90 Integrated Modem Commands

V.80 AT Command Set

The chip set supports the Synchronous Access Mode and most of the commands specified in V.80
standards. The commands are either AT commands issued in the command mode, or in-band
commands transmitted in the data stream. These in-band commands are delimited by the
hexadecimal characters EM (or numerically, 19h.)

V.80 AT Commands

Command
+ES=[<orig_rqst>
[,,<ans_fbk>]]
+ES?
+ES=?
ECG021/1298
Sub- Values
parameters
Orig_rqst <6> Initiate Synchronous Access
Mode when the data state is
entered.
ans_fbk
<8>Initiate Synchronous Access
Mode when connection is
completed and Data State is
entered.
Description
Controls operation of the V.42 protocol in the DCE
Reads syntax command to query current values of
the +ES sub-parameters.
The DCE transmits this string of information text to
the DTE: +ES:<orig_rqst>, ,<ans_fbk>.
Tests syntax command to obtain all defined values
of the +ES sub-parameters.
The DCE transmits this string of information text to
the DTE: +ES:( list of supported <orig_rqst>
values), ,(list of supported <ans_fbk> values).
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