Providing services in a telecommunications network
First Claim
1. An open services communications network architecture for inter-working narrow band services with broad band services in an asynchronous transfer mode (ATM) network so as to deliver multimedia services to users served by the communications network, the network architecture comprising an ATM core network, a multimedia call server, one or more multimedia servers, and a plurality of adaptive virtual junctors at the edge of the core network, said adaptive virtual junctors being interconnected by a mesh of permanent virtual connections each capable of supporting a plurality of narrow band channels and each having an adjustable capacity, wherein each adaptive virtual junctor is arranged to set up a multimedia session for a user via a signalling message relayed to the call server so as to establish first and second narrow band communication channels between that user and said one or two multimedia servers, each said communication channel being established within a said permanent virtual connection wherein said first communications channel is a text and graphics channel, and said second communications channel is speech and video channel.
12 Assignments
0 Petitions
Accused Products
Abstract
An open Services architecture for inter working narrow band services with equivalent broad band services delivers services on both the existing narrow band network and a future broad band network based on flexible signalling connections. The architecture incorporates an adaptive grooming router providing a fully interconnected backbone network function providing connectivity between a plurality of multimedia access routers and a narrow band network. The multimedia access routers provide hub points where access units terminating ISDN basic access and primary rate access lines used for multimedia services are terminated.
-
Citations
12 Claims
- 1. An open services communications network architecture for inter-working narrow band services with broad band services in an asynchronous transfer mode (ATM) network so as to deliver multimedia services to users served by the communications network, the network architecture comprising an ATM core network, a multimedia call server, one or more multimedia servers, and a plurality of adaptive virtual junctors at the edge of the core network, said adaptive virtual junctors being interconnected by a mesh of permanent virtual connections each capable of supporting a plurality of narrow band channels and each having an adjustable capacity, wherein each adaptive virtual junctor is arranged to set up a multimedia session for a user via a signalling message relayed to the call server so as to establish first and second narrow band communication channels between that user and said one or two multimedia servers, each said communication channel being established within a said permanent virtual connection wherein said first communications channel is a text and graphics channel, and said second communications channel is speech and video channel.
-
8. A method of inter-working narrow band services with broad band services in an open services communications network architecture incorporating an asynchronous transfer mode (ATM) network so as to deliver multimedia services from one or more multimedia servers to users served by the communications network, the network architecture comprising an ATM core network, a multimedia call server, one or more multimedia servers, and a plurality of adaptive virtual junctors at the edge of the core network, said adaptive virtual junctors being interconnected by a mesh of permanent virtual connections each capable of supporting a plurality of narrow band channels and each having an adjustable capacity, wherein the method comprises;
- sending a signalling message to the call server indicating a multimedia server to be accessed, establishing a first narrow band communications channel within a permanent virtual connection between the multimedia server and a user, and establishing a second narrow band communications channel within a permanent virtual connection between the multimedia server and the user so as to set up a multimedia session for that user wherein said first communications channel is a text and graphics channel, and said second communications channel is a speech and video channel.
- View Dependent Claims (9, 10, 11, 12)
Specification