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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
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