Arrangement for sharing a telephone office code

Details Arrangement for sharing a telephone office code Arrangement for sharing a telephone office code

1993-11-23

1995-09-26

Dwyer, James L.

Telephonic communications

Plural exchange network or interconnection

Interexchange signalling

379220, 379272, H04M 700, H04M 300

Patent

active

054540348

ABSTRACT:
An end office of the PSTN, which employs independent switching networks which share one or more office codes, is served by a single assigned node on the CCS network. The signaling processor which serves the assigned node, screens all incoming call messages (IAM)'s; directs messages which include an appropriate Channel Identification Code (CIC) to the switching network that serves that CIC; rejects messages that include an improper CIC; and requests that the calling office assign a different CIC to the incoming call.

REFERENCES:
patent: 5048081 (1991-09-01), Gavaras et al.
patent: 5237604 (1993-08-01), Ryan
patent: 5255315 (1993-10-01), Bushnell
A. S. Philip, "The System X digital switching subsystem (DSS)", Sep. 1979, pp. 5-19, Systems Technology.

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