Multi-Tech Systems MT5634ZPX-PCI AT Commands, Result Codes, and S-Registers, Carrier Control, Atd

3 AT Commands, Result Codes, and S-Registers

Command:	Bn	Communication Standard Setting
Values:		n = 0–3, 15, 16
Default:		1 and 16
Description:	B0	Select ITU-T V.22 mode when modem is at 1200 bps.
	B1	Select Bell 212A when modem is at 1200 bps.
	B2	Deselect V.23 reverse channel (same as B3).
	B3	Deselect V.23 reverse channel (same as B2).
	B15	Select V.21 when the modem is at 300 bps.
	B16	Select Bell 103J when the modem is at 300 bps.

Command:	Cn	Carrier Control
Values:		n = 1
Default:		1
Description:	C0	Transmit carrier always off. (Not supported.)
	C1	Normal transmit carrier switching (included for backward
		compatibility with some software).

Command:	Ds	Dial
Values:		s = dial string (phone number and dial modifiers)
Default:		none
Description:		Dial telephone number s, where s may up to 40 characters
		long and include the 0–9, *, #, A, B, C, and D characters,
		and the L, P, T, V, W, S, comma (,), semicolon (;), !, @, ^
		and $ dial string modifiers.
		Dial string modifiers:
		L Redial last number. (Must be placed immediately after
			ATD.)
		P	Pulse-dial following numbers in command .
		T	Tone-dial following numbers in command (default).
		V Switch to speakerphone mode and dial the following
			number. Use ATH command to hang up.
		W Wait for a new dial tone before continuing to dial. (X2,
			X4, X5, X6, or X7 must be selected.)
		S	Dial a telephone number previously stored using the
			&Zn=x command (see &Zn=x command for further
			information). The range of n is 0-3.
		,	Pause during dialing for time set in register S8.
		;	Return to command mode after dialing. (Place at end of
			dial string.)
		!	Hook flash. Causes the modem to go on-hook for one-
			half second, then off-hook again.

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