Lucent Technologies Host-Based Controller Modem AT specifications AT Commands, +Es?, +Es=?

Host-Based Controller Modem	Data Addendum
AT Command Set	June 15,
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	Sub-		Values	Description
	parameters
+ES=[<orig_rqst>[,,<ans_fbk	Orig_rqst	6	Initiate	Control the manner of
>]]		Synchronous Access Mode		operation of the V.42 protocol
		when the data state is		in the DCE
	ans_fbk	entered.
		8	Initiate
		Synchronous Access Mode
		when connection is
		completed and Data State
		is entered.
+ES?				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>.
+ES=?				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).

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