Multi-Tech Systems MT5634MSV manual

MessageSaver User Guide

S-Registers

Certain modem values, or parameters, are stored in memory locations called S-registers. Use the S command to read or to alter the contents of S-registers (see previous section).

Register	Unit	Range	Default	Description
S0	1 ring	0, 1–255	1	Sets the number of rings until the modem
				answers. ATS0=0 disables autoanswer
				completely.
S1	1 ring	0–255	0	Counts the rings that have occurred.
S2	decimal	0–127	43 (+)	Sets ASCII code for the escape sequence char-
		128–255		acter. Values greater than 127 disable escape.
S3	decimal	0–127	13 (^M)	Sets the ASCII code for the carriage return
				character.
S4	decimal	0–127	10 (^J)	Sets the ASCII code for the line feed
				character.
S5	decimal	0–32	8 (^H)	Sets the ASCII code for the backspace char-
		33–127		acter. Values over 32 disable backspace.
S6	seconds	2–65*	2*	Sets the time the modem waits after it goes
				off-hook before it begins to dial the telephone
				number.
S7	seconds	1–255*	50*	Sets the time the modem waits for a carrier
				signal before aborting a call. Also sets the
				wait for silence time for the @ dial modifier.
S8	seconds	0–65	2	Sets the length of a pause caused by a
				comma character in a dialing command.
S9	decimal	0, 1–127	37 (%)	Sets ASCII code for remote configuration
				escape character. S9=0 disables remote
				configuration.
S10	100 ms	1–254	20	Sets how long a carrier signal must be lost
				before the modem disconnects.
S11	1 ms	50–150*	95*	Sets spacing and duration of dialing tones.
S28	decimal	0, 1–255	1	0 disables, 1–255 enables V.34 modulation.
S30	1 minute	0, 1–255	0	Sets the length of time that the modem waits
				before disconnecting when no data is sent or
				received. A value of zero disables the timer.
				See also the \T command
S35	decimal	0–1	0	0 disables, 1 enables the V.25 data calling
				tone, which allows remote data/fax/voice
				discrimination.
S36	decimal	0–7	7	Specifies the action to take in the event of a
				negotiation failure when error control is
				selected. (See S48.)

* These values may be different outside North America.

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