Multi-Tech Systems MT5600SMI-XL34, MT5600SMI-P92, MT5600SMI-PL92, MT5600SMI-92 Transmit Facsimile

				Chapter 6 – Fax Class 1 and Class 1.0 Commands
Command:		+FRS	Receive Silence
Description:			This command causes the modem to listen and report an OK result code
			when silence has been detected on the line for the specified period of time.
			This command will terminate when the required period of silence is detected
			or when the DTE sends the modem another character other than XON or
			XOFF, which is discarded. In either event, the OK result code is returned.
			This command is aborted if any character is received from the DTE after
			receipt of the command but before the time delay elapses. In this case, the
			modem discards the aborting character and issues an OK result code.
Defined Values:			<time> Decimal number from 0 (default) to 255 which specifies the length of
			time in 10-ms intervals to delay before responding with the OK result code
			after detecting silence on the line.
Result Codes:			OK Reported when silence has been present on the line for the specified
			amount of time or when the DTE sends the modem a character other than
			XON or XOFF.
			ERROR <value> is invalid or this command is issued while the modem is on-
			hook.
Reporting Supported Range of Parameter Values:
			Command: +FRS=?
			Response: +FRS: <time> range
			Example: +FRS: 0-255
Command:		+FTM	Transmit Facsimile
Description:			This command causes the modem to transmit data using the modulation
			defined below. When a valid <mod> value is entered, the modem transmits
			the proper training sequence in the selected mode, followed by constant 1 bits
			until data is received from the DTE. The modem also returns the CONNECT
			result code at the beginning of the training sequence.
Defined Values:			<mod> Decimal number corresponding to the selected modulation mode and
			data rates shown in Table 6-2.
	Table 6-2. Fax Class 1 and Fax Class 1.0 Modulation Modes and Rates
	<mod>		Modulation	Training	Modulation Mode and Rate
		3	V.21		300 bps
		24	V.27 ter		2400 bps
		48	V.27 ter		4800 bps
		72	V.29		7200 bps
		73	V.17	Long	7200 bps long
		74	V.17	Short	7200 bps short
		96	V.29		9600 bps
		97	V.17	Long	9600 bps long
		98	V.17	Short	9600 bps short
		121	V.17	Long	12000 bps long
		122	V.17	Short	12000 bps short
		145	V.17	Long	14400 bps long
		146	V.17	Short	14400 bps short
Result Codes:			CONNECT Reported when the modems begins the training sequence after
			receipt of a valid <mod> value.
			ERROR If the modem’s transmit buffer becomes empty and the last
			transmitted character is NUL (00), the modem continues to transmit NULs
			until the DTE sends more data or five seconds elapses. After five seconds

elapse with an empty transmit buffer, the modem will turn off the transmit carrier, return to the command state, and report the ERROR result code. OK If the modem’s transmit buffer becomes empty and the last transmitted character is not NUL, the modem will turn off the transmit carrier, return to the command state, and report the OK result code.

Multi-Tech Systems, Inc. SocketModem MT5600SMI Developer’s Guide 91