Patent ID: 6885741
Filing Date: 2005-04-26
Classification: H04M

Abstract:
1. A system for call back of a first telephone station when placed on hold by a second telephone station, comprising: a service switching point in communication with the first telephone station; said service switching point adapted to receive requests to perform on-hold call back; a service node communicating with the service switching point, said service node adapted to connect the second telephone station with the first telephone station when the second telephone station becomes available; and a service control point communicating with said service switching point, and containing a database identifying said service node as adapted to connect the second telephone station with the first telephone station; wherein said service switching point upon receipt of a request from the first telephone station to implement call back from the second telephone station, queries said service control point to identify said service node as adapted to connect the second telephone station with the first telephone station, and communicates to said service node to execute a call back from said second telephone station to said first telephone station, and wherein said service node, upon receipt of a request from said service switching point, communicates a message to hang up to the first telephone station, communicates a message to said second telephone station that the first telephone station wishes to be contacted, receives a signal indicating the second telephone station is available, communicates to the first telephone station that the second telephone station is available, and connects the second telephone station and first telephone station.