Motorola SM56 manual +Vrid, +Vrx, +Vsd

Table 4: AT+ (Plus) Commands

Command	Option	Description
		If, after detecting ringback, no further ringbacks are
		detected after n/10 seconds, operate as if the remote
		device answered the call.
	+VRA=n	If no ringback is received, after n/10 seconds,
		assume that the remote device has answered the call;
		n = 0-255
		Ringback Never Occurred
	+VRN=n	After n/10 seconds, operate as if ringback never
		occurred; n = 0-255
+VRID		Repeat Caller ID
		This command instructs the modem to send all avail-
		able call information on the last incoming call to the
		DTE.
		Note: “AT+VRID” is identical to “AT+VRID=0”
	+VRID or	Display Caller ID information in formatted form
	+VRID=0
	+VRID=1	Display Caller ID information in unformatted form
	+VRID=?	Display Repeat Caller ID Status
+VRX		Voice Receive Mode
		Data/Fax/Speakerphone modem only
		Determines whether the modem generates a periodic
		beep, audible to both parties on the speakerphone,
		indicating that the call is being recorded.
			Note
			The speakerphone state does not have to be reset
			after recording to the line or playing a message
			to the line. The baud rate is not set before the
			StartPlay and StartRecord commands. The baud
			rate is not reset after the StopPlay and
			StopRecord commands.
	+VRX or	Produce Periodic DCE Tone While Recording
	+VRX=0
	+VRX=1	Disable Periodic DCE Tone Production During
		Recording
+VSD		Remote Silence-Detection Properties
		Data/Fax/Speakerphone modem only
	+VSD=m,n	Used in answering-machine mode. Specifies the vol-
		ume and duration thresholds that determine whether
		the remote device has hung up.
	m options:	Specifies the silence-detection level

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