Multi-Tech Systems MT5634ZBA-DID manual Enable Synchronous Buffered Mode

MultiModemDID User Guide	Chapter 4 - AT Commands, S-Registers, Result Codes
Subparameters
direction	Specifies the DTE direction of the data compression.
0	No compression.
3	Compression in both directions (default).
max_codewords_tx	Specifies the maximum number of code words to be negotiated
	in the transmit direction.
1024	Default.
256–2048	Maximum number of code words in transmit direction.
max_codewords_rx	Specifies the maximum number of code words to be negotiated
	in the receive direction.
1024	Default.
256–2048	Maximum number of code words in receive direction.
max_string_tx	Specifies the maximum string length to be negotiated in the
	transmit direction.
255	Default.
31–255 Maximum string length in transmit direction.
max_string_rx	Specifies the maximum string length to be negotiated in the
	receive direction.
255	Default.
31–255 Maximum string length in receive direction.
max_history_tx	Specifies the maximum length of the history buffer to be
	negotiated in the transmit direction.
5120	Default.
512–11008	History buffer size in transmit direction.
max_history_rx	Specifies the maximum length of the history buffer to be
	negotiated in the receive direction.
4096	Default.
512–11008	History buffer size in receive direction.
Command: +ES=n	Enable Synchronous Buffered Mode
Values:	n = 6
Default:	None
Description:	Allows an H.324 video application direct access to the
	synchronous data channel. On underflow, the modem sends
	HDLC flag idle (0x7E) to the remote modem. This special error
	control mode is overridden by any of the following commands:
	&F, &M, &Q, or \N.
+ES=6	Enables direct access to the synchronous data channel.
+ES=? Displays the allowed values.
+ES?	Displays the current value.

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