Patent ID: 9363370
Filing Date: 2016-06-07
CPC Classification: H04M,H04Q,H04W

Claim Text:
1. In a telecommunications system comprising a cellular system and a voice over Internet Protocol (“VoIP”) system, a method for handling a call placed by a dual-mode phone capable of operating in a cellular mode and in a VoIP mode, the method comprising: the cellular system receiving the call placed by the dual-mode phone registered with the cellular system, wherein the call is associated with a destination number identifying a destination for the call, and wherein the dual-mode phone is configured to communicate with the cellular system via a cellular connection between the dual-mode phone and the cellular system and to communicate with the VoIP system via an Internet Protocol (“IP”) connection, separate from the cellular system, between the dual-mode phone and the VoIP system; the cellular system obtaining a forwarding telephone number of the VoIP system; the cellular system storing the destination number; forwarding the call to the VoIP system at the forwarding telephone number to establish a connection between the cellular system and the VoIP system, such that the VoIP system can be used to connect the call with the destination without connecting through the cellular connection between the dual-mode phone and the cellular system; receiving, from the VoIP system, a query request for the destination number; providing, to the VoIP system, the destination number, wherein the VoIP system connects the call to the destination over the IP connection; disconnecting, via the VoIP system, the connection between the cellular system and the VoIP system; and disconnecting, via the cellular system and in response to disconnecting from the VoIP system, the cellular connection to the dual-mode phone.