Service Class 1 Commands

	Chapter 2 – Fax Class 1 and 1.0 Commands

Service Class 1 Commands
Command: +FAR	Adaptive Reception Control
Description:	If Adaptive Reception is enabled, the modem adaptively detects the selected
	message carrier or V.21 control messages. If the expected carrier is detected,
	the modem operates as specified in the respective +FRM=<mod or
	+FRH=<mod commands. If V.21 flag preamble is detected instead, the
	modem issues a +FRH:3 intermediate result code, and then executes an
	implied +FRH=3 command.
Defined Values:	<value> Decimal number corresponding to the selected option.
	0 Disable Adaptive Reception. (Default.)
	1 Enable Adaptive Reception.

Reporting Current or Selected Values:

Command: +FAR?

Response: +FAR: <value

Example: +FAR: 0 For the default setting.

Reporting Supported Range of Parameter Values:

Command: +FAR=?

Response: +FAR: (<value> range )

Example: +FAR: (0,1)

Command: +FCL	Carrier Loss Timeout
Description:	This parameter allows the DTE to select the modem’s loss-of-carrier delay
	between initial loss-of-carrier and qualified loss-of-carrier, when the modem
	will give up and exit a receive mode. Intermediate (less than FCL timeout)
	loss-of-carrier should be indicated by insertion of the SQ-BAD signal quality
	indicator in the received data stream.
	In unframed receive modes, if the modem detects RTC as described in
	Recommendation T.30 prior to initial loss of the high speed carrier, or if the
	modem detects V.21 carrier after initial loss of high speed carrier, then the
	modem immediately accepts the loss-of-carrier as qualified, without waiting for
	the FCL timer to expire.
	In HDLC receive modes, if the modem detects HDLC abort prior to initial loss
	of the high speed carrier, or if the modem detects V.21 carrier after initial loss
	of high speed carrier, then the modem l immediately accepts the loss-of-
	carrier as qualified, without waiting for the FCL timer to expire.
Defined Values:	<value> Decimal number representing the loss-of-carrier delay time in units of
	100 ms. The range is 0 - 255.

Reporting Current or Selected Values:

Command: +FCL?

Response: +FCL: <time

Example: +FCS: 0 For the default setting.

Reporting Supported Range of Parameter Values:

Command: +FCL=?

Response: +FCL: (time range)

Example: +FCL: (0-255)

Multi-Tech Systems, Inc. SocketModem MT5634SMIxx Reference Guide (S000263C)

MT5634SMI V.34, MT5634SMI V.92 specifications

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Multi-Tech Systems MT5634SMI V.34 Service Class 1 Commands, Command +FCL Carrier Loss Timeout

Models: MT5634SMI V.34 MT5634SMI V.92

Command: +FAR

Adaptive Reception Control

Command: +FCL

Carrier Loss Timeout

MT5634SMI V.34, MT5634SMI V.92 specifications