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Packet Sampling Time (G.729A)
Specifies
the time interval between measurements (samples) of sound data during a conversation. The smaller
this number, the higher the quality of the transmitted sound.
Value Range
10 ms, 20 ms, 30 ms, 40 ms, 50 ms, 60 ms
Voice Activity Detection for G.711
Enables the use of the Voice Activity Detection feature for the G.711 CODEC. This feature conserves
bandwidth by detecting silent periods during a call and suppressing the packets of silence from being sent to
the network.
Value Range
Disable, Enable
FAX Sending Method
Specifies the method of transporting the fax signal.
Value Range
G.711 Inband, T.38
Maximum Bit Rate
Specifies the maximum bit rate of the fax signal.
Value Range
No Speed Limit, 2400 bps, 4800 bps, 7200 bps, 9600 bps, 12000 bps, 14400 bps
FAX Detection Ability
Enables the use of the FAX Detection Ability feature. This feature enables end-to-end fax signal relay when
the other party prefers a CODEC other than G.711. This feature functions only if the other party supports G.
711.
Value Range
Disable, Enable
DTMF
Specifies the method to transport DTMF tones.
Value Range
Inband, Outband (RFC2833)
Payload Type
Specifies the payload type of RFC2833 for DTMF tones.
30 Programming Manual for Virtual SIP Trunk Card
3.1.8 Voice/FAX