Patent ID: 7106722
Filing Date: 2006-09-12
Classification: H04M,H04Q

Abstract:
1. A method for establishing a packet communications link within a packet based communication network having a first call control server communicating with a first media gateway and a second call control server communicating with a second media gateway wherein said first media gateway provides a communication link to a calling party terminal and said second media gateway provides communication link to a called party terminal, in response to a circuit switched call setup message, comprising the steps of: providing a controlling signal from said first call control server to said first media gateway for establishing a first termination point for connecting said first media gateway with said calling party terminal wherein said first media gateway further connecting said calling party terminal communicating circuit switched data to said packet based communications network; generating a circuit switched call setup message from said first call control server to said second call control server associated with said called party terminal, said call setup message further including identification data associated with said first media gateway; providing a controlling signal from said second call control server to said second media gateway for establishing a second termination point for connecting said second media gateway with said called party terminal wherein said second media gateway further connecting said called party terminal communicating circuit switched data to said packet based communications network wherein said controlling signal from said second call control server further includes the identification data associated with said first media gateway; and establishing a third termination point on said first media gateway and a fourth termination point on said second media gateway for establishing a direct call specific packet communication link from said second media gateway to said first media gateway using said identification data associated with said first media gateway for communicating data between said party terminal and said called party terminal.