Yealink VC400 Administrator's Manual page 149

Parameter
SIP account or SIP IP call separately.
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Default: RFC2833.
Configures the DTMF info type when
DTMF type is set to SIP INFO or
RFC2833+SIP INFO. You can
configure it for the Cloud platform,
SIP account or SIP IP call separately
DTMF Info Type
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Default: DTMF-Relay.
Configures the value of DTMF
payload. You can configure it for the
DTMF Payload
Cloud platform, SIP account or SIP IP
Type（96~127）
call separately.
Default: 101
To configure DTMF type for Cloud platform via web user interface:
Click on Account->Cloud.
1.
Select the desired value from the pull-down list of DTMF Type.
2.
If SIP INFO or RFC2833+ SIP INFO is selected, select the desired value from the
3.
pull-down list of DTMF Info Type.
Description
INBAND—DTMF digits are
transmitted in the voice band.
RFC2833—DTMF digits are
transmitted by RTP Events
compliant to RFC2833.
SIP INFO—DTMF digits are
transmitted by the SIP INFO
messages.
RFC2833+ SIP INFO—DTMF
digits are transmitted by RTP
Events compliant to RFC 2833
and the SIP INFO messages.
DTMF-Relay
DTMF
Telephone-Event
Configuring Call Preferences
Configuration Method
Web User Interface
Remote Control
Web User Interface
Web User Interface
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