Method of telephone signalling via data link

Details Method of telephone signalling via data link Method of telephone signalling via data link

1994-10-28

1996-07-23

Hofsass, Jeffery

Telephonic communications

Plural exchange network or interconnection

Interexchange signalling

379207, 379230, 379258, H04M 700

Patent

active

055398162

ABSTRACT:
A method of processing calls in a telephone switching system which is comprised of voice trunks and a message signalling link for carrying signalling data relating to calls on the voice trunks, and a processor for controlling the switching system. The method comprises the steps of receiving an incoming signalling message on the signalling link, converting the message into signalling messages of a type recognizable by the processor as received from a voice trunk, and including a signalling trunk identification address, looking up in a table a correspondence between the signalling trunk identification address and a voice trunk identification address, passing the messages with the voice trunk identification address replacing the signalling trunk identification address to the processor, and processing the call in the switching system as if the messages had come from the voice trunk.

REFERENCES:
patent: 3597544 (1971-08-01), Kennedy
patent: 4277649 (1981-07-01), Sheinbein
patent: 4499336 (1985-02-01), Krikor et al.
patent: 4615028 (1986-09-01), Lewis et al.
patent: 4616360 (1986-10-01), Lewis
patent: 5259026 (1993-11-01), Johnson

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