Advanced Voip Telephony, Dtmf Method, Payload Type

Advanced > VOIP > Telephony

The VoIP Terminal Adapter can be configured to handle voice signals over the Internet Protocol (Voice Over IP − VOIP).

DTMF Method	Out-of	band	Dual Tone Multi-frequency – The	Dual	Tone
	Multi-frequency (DTMF) mode sets how the router will handle the
	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).
Payload Type	The payload type (PT) field identifies the format of the RTP payload
	and determines its interpretation by the receiving application
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.