Method of telephone signalling via data link
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United States of America Patent
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-
Jul 23, 1996
Grant Date -
N/A
app pub date -
Oct 28, 1994
filing date -
Dec 3, 1993
priority date (Note) -
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status (Latency Note)
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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.
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