Multiplex communications – Pathfinding or routing – Through a circuit switch
Patent
1996-06-25
2000-12-05
Nguyen, Chau
Multiplex communications
Pathfinding or routing
Through a circuit switch
370496, 370526, 379212, H04J 312
Patent
active
061576409
ABSTRACT:
Whenever a subscriber associated with a plurality of subscriber features receives or originates a call, an application module associated with the serving local exchange links into the established call. The application module thereinafter intercepts all incoming calls towards that subscriber and transmits control data over the existing call connection to the subscriber terminal informing it of the new incoming call. The control data are transmitted over the existing call connection using out-of-band voice frequencies or during silent portions of the speech connection. Over the same existing call connection, the application module receives an instruction from the subscriber terminal for providing a particular terminating call treatment for this incoming call. The application module then provides the instructed terminating call treatment as instructed by the subscriber. Such a treatment may include call forwarding to a third subscriber, the enablement of call waiting, forwarding of the call to a voice mail, and similar subscriber services.
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Ericsson Inc
Hyun Soon-Dong
Nguyen Chau
LandOfFree
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