Transmission path selection circuit in a telecommunication netwo

Details Transmission path selection circuit in a telecommunication netwo Transmission path selection circuit in a telecommunication netwo

1986-03-03

1988-04-26

Dwyer, James L.

Telephonic communications

Plural exchange network or interconnection

Connection call model

H04M 700

Patent

active

047410272

ABSTRACT:
In military telecommunication networks a functional dialling number diagram is used independent from the network configuration. As the network structure in a military telecommunication network constantly changes and the subscriber can move to a different address at any moment, it is necessary to switch-through all the possible connection paths in the telecommunication network during the search for the called subscriber. So as to enable the connection set-up to be rapidly effected, connection set-up messages are transmitted outgoing from the exchange of the calling subscriber to all the exchanges connected to this exchange (parallel target search method).
To reduce the traffic load in the exchanges and to shorten the connection set-up times, a timing member is started in all the exchanges when a connection set-up message arrives. After the time delay has ended, the stored connection set-up message is cancelled again. Now the connection set-up message arriving first is used in the exchange of the called subscriber for establishing a connection to the calling subscriber station. During the time delay of the timimg member further connection set-up messges arriving in the exchange are not stored.

REFERENCES:
patent: 3705523 (1972-12-01), Alouisa

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