Tandberg | Video on Frame Relay |
2. Background on transmission of video over frame relay
The successful transmission of digitised voice over public frame relay data services the past few years has drawn attention to the question of whether video services can be transmitted over the same link.
Voice, data & video over frame relay
Digitised Video is not new. It has been used for several years by a myriad of users on ISDN or leased line connections. The common international standard for the compression of video and accompanying voice is H.320. Frame relay is not new either. It has been in existence for several years, and is now one of the most widely deployed data transmission means in the world. What is new, and revolutionary, is the ability to take a standard H.320 video stream, "packetise it", and route it over a frame relay network.
Historically, frame relay has been developed and sold primarily as a data transport technology and service solution. This should be viewed primarily as a marketing and positioning technique, not a fundamental technical limitation. All of the technical challenges of using frame relay to transport video have been met. The marketing challenge is to expand the perceived scope of frame relay beyond a "data only" image.
D11624 rev.01 | 4 |
