Telephonic communications – Centralized switching system – Switching controlled in response to called station...
Patent
1994-02-15
1995-06-06
Dwyer, James L.
Telephonic communications
Centralized switching system
Switching controlled in response to called station...
379262, 379267, 379265, 379266, H04M 356
Patent
active
054229448
ABSTRACT:
A centrex with an attendant console sharing system wherein there is no restriction in an extension line numbering plan so that an attendant console can accept a call to any business group and will connect the call only to the extension line station of the business group for which the call is destined. Means for connecting 12 of the centrex links attendant console 2 to business group attendant console data corresponding to the business group for which an incoming call is destined in accordance with pilot number-to-attendant console conversion table 3 when the call arrives at attendant console 2 from a public network subscriber and in accordance with business group number-to-attendant console conversion table 4 when the call arrives from an extension line station of the business group.
REFERENCES:
patent: 3859473 (1975-01-01), Brown et al.
patent: 4951310 (1990-08-01), Honda et al.
Dwyer James L.
NEC Corporation
Wolinsky Scott
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