System for media gateway to media gateway address information exchange
First Claim
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.
1 Assignment
0 Petitions
Accused Products
Abstract
A method and protocol for providing direct, per-call address information exchange (216, 218) between two distinct IP media gateways, including establishment of a first termination point (128) in an originating media gateway (120), transferring address information for the first termination point (204, 206, 214) to a receiving media gateway (124), establishing (220) of a second termination point (130) in the receiving media gateway, and using the address information to establish direct communication between the first and second termination points.
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Citations
20 Claims
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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:
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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. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A packet based communication network including a first media gateway for communicating with a first party terminal, a first call control server for controlling said first media gateway and a second media gateway for communicating with a second party terminal, and a second media gateway for controlling said second media gateway, said packet based communication network comprises:
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means within said first call control server for instructing said media gateway to establish a first termination point for communicating with said first party terminal wherein said first media gateway receiving circuit switched data from said first party terminal and for establishing a second termination point for communicating packet data, including circuit switched data received from said first party terminal, with said second media gateway over said packet based communication network in response to receiving a call setup request from said first party terminal towards said second party terminal; means within said first call control server for generating a circuit switched based call setup message towards said second call control server wherein said call setup message includes identification data associated with said second termination point; and means within said second call control server for providing a controlling signal to said second media gateway for establishing a third termination point for communication with said second party terminal and a fourth termination point 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. - View Dependent Claims (13, 14, 15)
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16. A method for establishing a communications link between a first party terminal and a second party terminal 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 media gateway provides a communication link to said first party terminal and said second media gateway provides communication link to said second party terminal, in response to a call setup message, said method comprises the steps of:
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receiving a circuit switched based call setup message at a first call control server for establishing a communication link from said first party terminal to said second party terminal; instructing said first media gateway from said first call control server to establish a first termination point for communicating with said first party terminal and a second terminal point for communicating with said second party terminal wherein said first media gateway further communicating packet data including circuit switched data received from said first party terminal over said packet based communication network; and transmitting by said first call control server a circuit switched call setup message towards said second call control server serving said second party terminal wherein said call setup message includes data identifying said second party terminal and said second termination point enabling said second call control server to instruct said second media gateway to establish a direct call specific packet communication link between a third termination point within said first media gateway using said identification data. - View Dependent Claims (17, 18, 19, 20)
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Specification