Multi-Tech Systems MT5600SMI-32 manual Error Control Reporting, Call Termination Buffer Management

				Chapter 5 – AT Commands, S-Registers, and Result Codes
Command:	+ER	Error Control Reporting
Description:		This extended-format numeric parameter controls whether or not the
		intermediate result code is transmitted from the modem to the DTE.
		S95 bit 3 is reset to 0 for +ER=0 and is set to a 1 for +ER=1. The more
		recent setting of +ER or S95 bit 3, and the W command setting, determines
		the actual error control result code reporting (see S95 Parameter and W).
Default:		0
Defined Values:		+ER0	Error control reporting disabled (no +ER intermediate result
			code transmitted).
		+ER1	Error control reporting enabled (+ER intermediate result code
			transmitted).
Report Commands:		+ER?	Reports Current or Selected Values
			Response: +ER: <current value>
			Example: +ER: 0 for the default setting
		+ER=?	Reporting Supported Range of Parameter Values.
			Response: +ER: (<value> range)
			Example: +ER: (0,1)
Command:	+ER: <type> Report the Current Error Control
Description:		The +ER: <type> reported represents the current (negotiated or
		renegotiated) modem-modem error control type. If enabled, the
		intermediate result code is transmitted during error control negotiation
		(handshaking) at which time the modem has determined the error control
		protocol will be used (if any), before the final result code (e.g.,
		CONNECT) is transmitted. The +ER intermediate result code, if enabled,
		is issued after the Modulation report (+MCR and +MRR) and before the
		Data Compression Report (+DR).
Defined Values:		NONE	Error control is not in use.
		LAPM	V.42 LAPM protocol is in use.
		ALT	MNP is in use.
		Example: +ER: LAPM
Command:	+ETBM	Call Termination Buffer Management
Description:		This extended-format compound parameter controls the handling of data
		remaining in modem buffers upon call termination. It accepts three numeric
		subparameters:
Default:		None
Defined Values:		<pending_TD>		Decimal number 0 specifies disconnect will occur
				immediately and all buffered transmit data will be
				discarded when the local DTE requests call
				disconnection.
		<pending_RD>		Decimal number 0 specifying that disconnect will occur
				immediately and all buffered receive data will be
				discarded when the local DTE requests call
				disconnection.
		<timer>		Decimal number 0 specifying that the modem will not
				attempt to deliver the buffered data before abandoning
				the attempt and discarding remaining data.
Report Commands:		+ETBM?		Reports Current or Selected Values.
				Response:
				+ETBM: <pending_TD>,<pending_RD>,<timer>
				Example: +ETBM: 0,0,0
		+ETBM=?		Reports Supported Range of Parameter Values.
				Response:
				+ETBM: (<pending_TD> range),(<pending_RD> range),

(<timer> range)

Example: +ETBM: (0),(0),(0)

Multi-Tech Systems, Inc. SocketModem MT5600SMI Developer’s Guide 57