Patent ID: 9497230
Filing Date: 2016-11-15
CPC Classification: H04L,H04M,H04W

Claim Text:
1. A method of establishing a packetized telephony communications session between at least two nodes of a packet data network, over a packet switched data network, comprising: receiving, by a packet network telephony call processing device, over said packet switched data network, a packetized request message requesting a telephony service from a first node to communicate with a second node; and interfacing said packet network telephony call processing device with an application program over said packet switched data network using packetized messages to exchange session information and to provide control to enable said requested telephony service, said application program being located separately from one of said at least two nodes, wherein said at least two nodes comprise at least two packet telephony network end points, wherein said requested telephony service comprises a request to establish a packetized telephone call over said packet switched data network between said at least two packet telephony network end points, and wherein said packetized messages exchanged between said packet network telephony call processing device and said application program indicate said packetized telephone call to be established and enable said call between said end points.