Patent ID: 6816583
Filing Date: 2004-11-09
Classification: H04M,H04W

Abstract:
A method for call transferring in a communication system, comprising:establishing a first call connection between a mobile station and a first telephonic device, the mobile station operable to communicate with a first client in a packet-switched network, the first telephonic device operable to communicate with a second client in the packet-switched network, the first client operable to communicate with the second client; placing the first telephonic device on hold; establishing an alerting call connection between the mobile station and a second telephonic device, the second telephonic device operable to communicate with a third client in the packet-switched network, the third client operable to communicate with the first and second clients; instructing the first client to produce ring back tone for the mobile station; and transferring a call from the first telephonic device to the second telephonic device.