Call collision sidestep system for two-way simultaneous calls in an ISDN network

U.S. Patent Number: 5381415

Abstract: A method of controlling a network including first and second terminals connected to the network. The method responds to a call collision state in which the first terminal transmits a corresponding connect request to the network for connection to the second terminal and, simultaneously, the second terminal transmits a corresponding connect request to the network for connection to the first terminal. The method includes the steps of withdrawing from the network the corresponding connect request from one of the first terminal and the second terminal while maintaining the corresponding connect request from the other of the first and second terminals; transmitting a relayed connect request from the network to the one of the first terminal and the second terminal for which the connect request was withdrawn; transmitting a connect allowance signal from the network to the one of the first and second terminals for which the connect request was maintained; and connecting the first terminal and the second terminal together through the network.

Inventors: Mizutani; Yasunao (Kawasaki, JP)

Assignee: Fujitsu Limited (Kawasaki, JP)

Application Number: 08/087,351

Issued: 1995-01-10

Expired: 2007-01-10

Classes: 370/447 ; 370/522; 379/350

Field of search: 379/251,257,258,350,352

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