Models with Video Transcoders

The 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.

For more information on video transcoders, see Managing video transcoder resources.

Video Transcoder interconnect

The 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.



Video model with a single Video Transcoder

In a simple case, a video transcoder is mated with the Video Gateway. The gateway is configured with this single video transcoder system which is used to complete gateway routes for the negotiated video codecs.




Video model with multiple Video Transcoders

For scalability in transcoding requirements, multiple video transcoder systems may be required to satisfy the needs of the application or the connectivity requirements of the target IP endpoints. For this reason, the Video Gateway may be configured to use multiple video transcoders.




Video model with gateways sharing Video Transcoders

For flexibility in deployments and scalability of a gateway solution, multiple Video Gateways may be configured to share multiple video transcoder systems. In this configuration, the solution provider can view the composite of these servers as a single node or scalable gateway.




Video model with co-located Video Transcoder

The video transcoder may be a subsystem deployed on the same physical server as the Video Gateway. Logically these are separate servers and are configured similarly to the Video model with a single Video Transcoder.