Stacy Robinson Scott

US Patent:

20020131429, Sep 19, 2002

Filed:

Dec 6, 2001

Appl. No.:

10/010832

Inventors:

Stacy Scott - Allen TX, US
Jan Lindquist - Plano TX, US
Herbie Francis - Brighton, GB

International Classification:

H04L012/28
H04L012/56
H04J003/16
H04J003/22

US Classification:

370/401000, 370/410000, 370/465000

Abstract:

The combination of narrowband applications with broadband transport may be enabled with a tri-level nodal communications architecture including multiple call control nodes, multiple connection control nodes and one or more intermediates node for interworking between the call control nodes and connection control nodes, in which the intermediate node(s) are controlled by all of the call control nodes. In certain embodiment(s), the identity of the call control node is transmitted to the intermediate node with each message to differentiate between the multiple call control nodes. In addition, each resource (e.g., port) managed by the intermediate node has a call control node identity associated therewith. In further embodiments, a logical port is used to support connections between call control nodes sharing the same intermediate node. The logical port represents a logical E1 path between the two call control nodes.

US Patent:

20030099192, May 29, 2003

Filed:

Nov 28, 2001

Appl. No.:

09/996488

Inventors:

Stacy Scott - Allen TX, US
Gert Oster - Jorfolla, SE
Jan Lindquist - Plano TX, US
Stefan Petersson - Frisco TX, US
Anders Kawe - Alvsjo, SE
Johan Appelbom - Alvsjo, SE
Kurt Schoppe - Allen TX, US

International Classification:

H04J001/16
H04J003/14

US Classification:

370/229000, 370/410000, 370/236000

Abstract:

According to the present invention, a method and system for communicating via a switched virtual circuit (SVC) is provided wherein transmission traffic is monitored between two ATM switches. When call traffic between the two switches increases above a predetermined level, at least one SVC can be established. At least one, and typically more than one, idle SVC is established and maintained by a media gateway controller utilizing a virtual termination in each switch that is connected to each end of the SVC. This allows end users to be connected to and disconnected from the SVC, without the need to establish or break down the SVC. The SVC remains connected between the switches as long as a predetermined threshold value of packet data transmissions is exceeded. The SVC is torn down when the level of transmissions goes below a predetermined level.