Patent ID: 9668175
Date: 2017-05-30
CPC Classifications: H04L,H04M,H04W

Claim:
1. A method for handling a call involving a dual-mode handset capable of operating in a cellular mode and in a voice over Internet Protocol (“VoIP”) mode, the method comprising: a dual-mode handset participating in a first call with an other party, the first call being carried on a VoIP connection with a VoIP system; determining that a signal quality for the VoIP connection has fallen below a first threshold; originating a second call between the VoIP system and the dual-mode handset, wherein the second call is carried by a cellular system; answering the second call; bridging the first call and the second call; the dual-mode handset transitioning a microphone function and a speaker function from the first call to the second call, such that the dual-mode handset is in communication with the other party via the second call; and disconnecting the first call.