Dialogic® Vision™ CX Video Gateway Administration ManualFine tuning the CX Video Gateway configuration
DTMF settings
The following table describes the DTMF parameters that you can change if the
defaults do not correctly describe your configuration:
Parameter
Description
acceptInboundDTMFInSIPINFO
Indicates whether the CX Video Gateway can accept an incoming SIP
INFO message with DTMF content.
Valid values:
•
TRUE: Gateway can accept an incoming SIP INFO message with
DTMF content when RFC 2833 is not negotiated.
•
FALSE: Gateway cannot accept an incoming SIP INFO message
with DTMF content. It rejects the message by issuing a 415
Media not supported response.
Default: FALSE
detectInbandDtmfInVideoCalls Determines whether the CX Video Gateway detects in-band DTMF in
mobile video calls.
Valid values:
•
0: Gateway does not detect in-band DTMF in mobile video calls.
•
1: Gateway detects in-band DTMF when audio transcoding is
required.
•
2: Gateway always detects in-band DTMF. This forces audio
transcoding, even if the audio codecs on both call legs are the
same.
Default: 1
This setting is useful for supporting handsets that do not support User
Input Indication (UII).
Note:
Detecting in-band DTMF uses additional DS0 resources
because each transcoded channel requires two DS0 resources.
dtmfEventDuration
Duration of an RFC 2833 DTMF event, in milliseconds. The CX Video
Gateway generates a DTMF event after it receives an H.245 User
Input Indication message containing a DTMF from a 3G network.
Default: 80 for audio setup;
300 for video setup
dtmfEventNotification
Indicates whether to notify the CCXML engine that a DTMF was
received on a call leg.
Valid values:
•
TRUE: Notify the CCXML engine.
•
FALSE: Do not notify the CCXML engine.
Default: FALSE
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