Patent ID: 9179482
Filing Date: 2015-11-03
Classification: H04L,H04W

Abstract:
1. A method performed by one or more processors of an IP telephony system for setting up a telephony communication, the method comprising: setting up a first cellular-based communication path via a mobile telephony service provider to a telephony device that is capable of simultaneously conducting an Internet protocol (IP) communication via a data network and a cellular-based communication via a mobile telephony service provider, and commencing a telephony communication with the telephony device over the first communication path; sending a communication to the telephony device that causes an IP software application on the telephony device to register with the IP telephony system via a data network; setting up a second IP-based communication path to the telephony device via the data network; and transitioning the telephony communication from the first communication path to the second communication path, wherein the transitioning comprises: conferencing together the first cellular-based communication path and the second IP-based communication path; and terminating the first cellular-based communication path such that the telephony communication continues over only the second IP-based communication path.