Advanced > VOIP > Telephony
The VoIP Terminal Adapter can be configured to handle voice signals over the Internet Protocol (Voice Over IP − VOIP).
DTMF Method | band | Dual Tone | Dual | Tone | |
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| tones that your telephone makes when you push its buttons. It is | ||||
| recommended that you use the same mode that your VoIP service | ||||
| provider uses. Select Enabled (RFC 2833) to send the DTMF tones | ||||
| in RTP packets. Select Disabled (G.711) to include the DTMF tones | ||||
| in the voice date stream. This method works best when you are using | ||||
| a codec that does not use compression (like G.711). |
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Payload Type | The payload type (PT) field identifies the format of the RTP payload | ||||
| and determines its interpretation by the receiving application |
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VAD | Voice | Activity | Detection (VAD) – Detects whether or | not | speech |
| is present. This lets the VoIP Terminal Adapter reduce the | ||||
| bandwidth that a call uses by not transmitting “silent Packets” when | ||||
| you are not speaking. |
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