#VRN - Ringback Never Came Timer (Originate)

This command can be used when originating a voice call (#CLS=8) to set the "Ringback Never Came" timer value, i.e., an amount of time (in units of 100 ms) measured from completion of dialing. If ringback is not detected within this period, the modem assumes the remote has picked up the line and switches to Online Voice Command Mode.

Parameters:
n = 0 - 255 (0 - 2.55 seconds)

Default:
100

Result Codes:
OK - If n = 0 - 255

ERROR - Otherwise

Command Options:
#VRN? - Returns the current setting of the #VRN command as an ASCII decimal value in result code format.

#VRN=? - Returns the message: 0 - 255

#VRN=0 - Turns off the ringback never came timer. After dialing, the modem sends VCON and immediately enters Online Voice Command Mode.

#VRN=n - Where n defines the period without ringback after dialing in 100 ms units.

Click here to return to the Contents page.