Telephonic communications – Plural exchange network or interconnection – Tandem switching center
Patent
1988-09-19
1989-06-06
Dwyer, James L.
Telephonic communications
Plural exchange network or interconnection
Tandem switching center
379269, 379207, 379266, H04M 300
Patent
active
048377996
ABSTRACT:
The present invention is a telecommunications control system for accepting a plurality of multi-purpose stations for use as attendant stations in an attendant service complex to service calls directed to the system from originating stations. This system comprises a first plurality of connection controllers. Each connection controller in this first plurality of connection controllers provides for cooperating with a respective one of a plurality of multi-purpose stations in defining opposite ends of a call connection path. Each of these connection controllers has controllable switching means for opening the call connection path and releasing the respective multi-purpose station. The system provides for security against use of any of the multi-purpose stations within the attendant service complex by an unauthorized person. This system further includes a second plurality of connection controllers. Each connection controller is this second plurality of connection controllers provides for cooperating with a respective one of a pluraity of originating stations in defining opposite ends of a call connection path. This system further includes controllable inter-connection arranged between the first and second plurality of connection controllers, and includes a system for controlling the inter-connection system such that incoming calls from originating stations are extended to multi-purpose stations that have been accepted as attendant stations.
REFERENCES:
patent: 3859473 (1975-01-01), Brown et al.
patent: 3881060 (1975-04-01), Connell et al.
patent: 4400587 (1983-08-01), Taylor et al.
patent: 4737983 (1988-04-01), Frauenthal et al.
Akins Charles G.
Efthyvoulos Nicholas
Prohs John R.
Sandilands Phillip E.
Scheid Michael R.
Ambassador College
Dwyer James L.
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