Half Duplex/Full Duplex Audio; Voice Messaging - Diamond SupraExpress 56e Manual

AT
Notes
Command
#VLS=9 Record/Playback from handset through sound chip.
#VRN Ringback Never Came Timer
The #VRN command is used when originating a voice/audio call (AT#CLS=8) to set the
"Ringback Never Came" timer value, i.e., an amount of time (in units of 100 ms) measured
from the 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.
The format for #VRN is: AT#VRN=n
AT Command
#VRN?
#VRN=Ø
#VRN=n
H D
ALF UPLEX
You can use your modem as a speakerphone if you have speakerphone support, and you have
installed speakers and a microphone. This allows you to conduct hands free two-way dialing and
speaking. Using your headset, you can dial and converse without taking your hands from the
keyboard. Using speakerphone, you can place a call and listen to its progress without lifting the
telephone handset and holding it to your ear -- useful for those long waits on Hold.
To determine if you have speakerphone support, issue ATi10 from terminal mode. Hands Free
Phone support is Feature #176. Hands Free Phone support provides speakerphone functions in half
duplex audio. Most speakerphone circuits are half duplex. They are designed to transmit in only
one direction at a time, so the person talking gets the line.
If you have Feature #177, your modem supports a Full Duplex Speakerphone. Full duplex
speakerphone circuits allow for simultaneous two-way communications, which provide more
natural communication without broken audio.
V M
OICE ESSAGING
You can use your modem as an answering machine after you install the voice software that was
shipped with your modem. Depending upon your modem model, you can record and play back
Notes
Returns the current setting of the #VRN command as an
ASCII decimal value in result code format.
Turns off the Ringback Never Came Timer. After dialing,
the modem sends VCON and immediately enters Online
Voice Command Mode.
Where n defines the time period without ringback after
dialing in 100 ms units.
/F D
ULL UPLEX
A
UDIO
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