Dtmf Tone Generation - Polycom SoundPoint IP 600 SIP Administrator's Manual

Administrator Guide - SoundPoint

3.3.5 DTMF Tone Generation

SoundPoint
SoundPoint
telephone can encode the DTMF tones using the active voice codec or using
RFC 2833 compatible encoding. The coding format decision is based on the capabili-
ties of the remote endpoint.
Central
(boot
server)
Local
3.3.6 DTMF Event RTP Payload
SoundPoint
phony Tones, and Telephony Signals. RFC 2833 describes a standard RTP-compatible
technique for conveying DTMF dialing and other telephony events over an RTP media
stream. SoundPoint
erate, nor otherwise use, DTMF events received from the remote end of the call.
Central
(boot
server)
Local
3.3.7 Acoustic Echo Cancellation (AEC)
SoundPoint
tion. Both linear and non-linear techniques are employed to aggressively reduce echo
yet provide for natural full-duplex communication patterns.
®
IP
®
IP generates DTMF tones in response to user dialing on the dial pad.
®
IP transmits the DTMF tones in the RTP streams of connected calls. The
Configuration file:
ipmid.cfg
Web Server
(if enabled)
Local Phone User
Interface
® IP is compatible with RFC 2833 - RTP Payload for DTMF Digits, Tele-
®
IP generates RFC 2833 (DTMF only) events but does not regen-
Configuration file:
ipmid.cfg
Web Server
(if enabled)
Local Phone User
Interface
®
IP employs advanced acoustic echo cancellation for hands-free opera-
Copyright © 2004 Polycom, Inc.
Set the DTMF tone levels, autodialing on and off times, and
other parameters.
• For more information, see 4.6.1.3.1 Dual Tone Multi-
Frequency <DTMF/> on page 60.
None.
None.
Enable or disable RFC 2833 support in SDP offers and spec-
ify the payload value to use in SDP offers.
• For more information, see 4.6.1.3.1 Dual Tone Multi-
Frequency <DTMF/> on page 60.
None.
None.
Features
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