Telephonic communications – Centralized switching system – Switching controlled in response to called station...
Patent
1985-02-07
1987-09-15
Brown, Thomas W.
Telephonic communications
Centralized switching system
Switching controlled in response to called station...
379274, H04Q 342
Patent
active
046944877
ABSTRACT:
A distributed control switching system where the system control units cooperatively perform the terminating port determination function. Multi-port hunt groups having members that span a number of switching modules each having an associated control entity, are controlled in an efficient manner by assigning, for each multi-port hunt group, one of the switching modules as the group controller for that multi-port group. All calls to a given group necessarily require a control communication with the group controller which maintains the dynamic busy/idle data for the group and performs the hunting function to assign idle group members to calls.
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Chang Shih-Jeh
Emery Richard T.
Hakim Shafik J.
Sand Douglas S.
American Telephone and Telegraph Company AT&T Bell Laboratories
Brown Thomas W.
Watland Ross T.
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