Overview of the CX Video Gateway
Dialogic® Vision™ CX Video Gateway Administration Manual
Models with Video Transcoders
The CX Video Gateway includes options for video transcoders. A video transcoder can
be deployed in several configurations based on application need as described in the
following topics.
•
Video Transcoder interconnect
•
Video model with a single Video Transcoder
•
Video model with multiple Video Transcoders
•
Video model with gateways sharing Video Transcoders
•
Video model with co-located Video Transcoder
For more information on video transcoders, see
Managing video transcoder resources
on page 94.
Video Transcoder interconnect
The CX Video Gateway controls the video transcoder resources and inserts the
transcoder in the video media path between the gateway and the target IP endpoint.
The communication interface to the IP endpoint is SIP. The interworking of the
gateway has proprietary control of the video transcoder. Video traffic is routed to
and from the video transcoder via RTP. Audio traffic flows separately from the
gateway to the IP endpoint via RTP.
PSTN
Network
IP
Network
CX Video
Gateway
Video
Transcoder
ISUP
PSTN
Network
PSTN
network
IP
Network
IP
network
CX Video
Gateway
CX Video
Gateway
Video
Transcoder
Video
Transcoder
E1
RTP
RTP
RTP
SIP
Video model with a single Video Transcoder
In the simplest case, a video transcoder is mated with the CX Video Gateway. The
gateway is configured with this single video transcoder system which is used to
complete gateway routes for the negotiated video codecs.
CX Video
Gateway
PSTN
network
IP
network
Video
Transcoder
20
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