V.80 At Commands - Lucent Technologies Host-Based Controller Modem AT Data Addendum

Host-Based Controller Modem
AT Command Set
1998

V.80 AT Commands

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.)
A) Synchronous Access Mode AT commands
Table 9. V.80 AT Commands
Command
+ES=[<orig_rqst>[,,<ans_fbk
>]]
+ES?
+ES=?
59
Sub-
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.
Version 1.0
Values
Control the manner of
operation of the V.42 protocol
in the DCE
Read Syntax command to
query the current values of the
+ES sub-parameters. The
DCE shall transmit a string of
information text to the DTE
consisting of
+ES:<orig_rqst>, ,<ans_fbk>.
Test Syntax command to
obtain all defined values of the
+ES sub-parameters. The
DCE shall transmit a string of
information text to the DTE
consisting of
+ES:( list of supported
<orig_rqst> values), ,(list of
supported <ans_fbk> values).
Lucent Technologies Inc.
Data Addendum
June 15,
Description