4.5.3.5 DTMF

DTMF Type

Description Selects the method for transmitting DTMF (Dual Tone Multi-Frequency)
tones.
Value Range Inband
RTP Event (2833)
None
Note
If you select RTP Event (2833), DTMF tones will be sent via
2833 event.
Default Value RTP Event (2833)
Configuration File Reference DTMF_MODE (Page 287)

DTMF Relay

Description Specifies whether DTMF relay is enabled or disabled.
Value Range Yes
No
Note
When set to "Yes", DTMF tones will be sent through SDP
regardless of the DTMF Type setting.
Default Value No

Telephone-event Payload Type

Description Specifies the RFC 2833 payload type for DTMF tones.
Value Range 96–127
Default Value 101
Configuration File Reference TELEVENT_PAYLOAD (Page 287)
4.5.3.6 Call Hold

Supports RFC 2543 (c=0.0.0.0)

Description Selects whether to enable the RFC 2543 Call Hold feature on this line.
Document Version 2014-05 Administrator Guide 123
4.5.3 VoIP Settings [Line 1]–[Line n]