Common channel interoffice signaling system

Details Common channel interoffice signaling system Common channel interoffice signaling system

1982-10-29

1985-02-12

Brown, Thomas W.

179 18EE, H04M 706, H04Q 354

Patent

active

044993366

ABSTRACT:
A modular Common Channel Interoffice Signaling (CCIS) system is described for use with an electronic switching office. This system provides for minimal impact to the program instructions of the switching office. Virtually all modifiable CCIS program instructions are contained within the CCIS system. Therefore, any feature changes or additions to the CCIS system affect only the CCIS system and not the switching office. In addition, the central processing arrangement of the present CCIS system operates a large number of analog and/or digital transmission devices for CCIS data transfer.

REFERENCES:
patent: 4371754 (1983-02-01), De et al.
patent: 4466062 (1984-08-01), Krikor
GTD-5 EAX Hardware Description, Jinboand Magnusson, 1980 Int'l Conf. on Communications, Jun. 1980, pp. 18.3.1-7.

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