05042062 is referenced by 102 patents and cites 5 patents.

Broadband terminals, such as video terminals and a video conferencing system, are directly connected to broadband digital access crossconnect systems and connections between the terminals are established via the crossconnects and DS1 or DS3 interconnecting links under control of telephone exchanges associated with the different crossconnects. A broadband terminal is connected to an associated exchange, as well as, a crossconnect and a connection from one terminal to another may be requested by transmitting a special code to the exchange together with a directory number assigned to the desired broadband terminal. The central office, on the basis of the directory number, area code and exchange code, selects a broadband interconnecting link from the crossconnect to which the originating terminal is connected to the crossconnect to which the terminating terminal is connected. Furthermore, the originating exchange transmits the identity of the selected link and the directory number via a common channel signaling system to the exchange associated with the requested terminal. Both the originating and terminating exchanges transmit connect messages to their associated crossconnects to establish a broadband path between the two terminals.

Title
Method and apparatus for providing real-time switching of high bandwidth transmission channels
Application Number
7/425644
Publication Number
5042062
Application Date
October 23, 1989
Publication Date
August 20, 1991
Inventor
Donald E Smith
Colts Neck
NJ, US
Gerard P O Reilly
Manalapan
NJ, US
James M Leighton
Marlboro
NJ, US
Robert C Lee
Glen Ellyn
IL, US
Agent
P Visserman
R T Watland
Assignee
AT&T Bell Laboratories
NJ, US
IPC
H04M 11/00
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