Third party call control

Details Third party call control Third party call control

1996-08-05

1999-07-20

Hong, Harry S.

Telephonic communications

Plural exchange network or interconnection

Connection call model

379127, 379230, 379265, 379309, H04M 700, H04M 1500, H04M 300, H04Q 364

Patent

active

059265353

ABSTRACT:
A subscriber call routing system is used for routing a call initiated in a carrier public switched telephone network to any one of a plurality of different subscriber resources for a subscriber number. The routing system includes a call manager for receiving a connection request from the PSTN for any call placed to the subscriber number, the connection request including call identification information including indicia relating to the call, and developing a routing request. A routing processing system is operatively associated with the call manager and in response to a routing request uses a stored routing algorithm for selecting one of the subscriber resources to receive the call. The routing processing system transmits a request to the selected subscriber resource for acceptance of the call. A telephone interface application is operatively associated with each of the subscriber resources for receiving a request from the routing processing system for acceptance of the call and returns an acceptance command to the routing processing system to accept the call or returns a rejection command to the routing processing system to reject the call. The call manager sends a response to the PSTN designating the selected subscriber resource to receive the call responsive to receiving the acceptance command or developing a routing request to the routing processing system responsive to receiving the rejection command. The telephone interface application can also transfer a routing request to the routing processing system to re-route a call previously received by its associated subscriber resource.

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