Call flow system and method use in VoIP telecommunication system
First Claim
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1. A method for processing a Voice over Internet Protocol call in a communication network, comprising:
- receiving, by a private branch exchange situated in an enterprise network, a call origination request of a call destined to a member having a mobile station and a deskphone within the enterprise network;
delivering, by the private branch exchange, a first call invite message to an enterprise gateway server situated in the enterprise network;
delivering, by the private branch exchange, a second call invite message to the deskphone;
allocating, by the enterprise gateway server, a media port for insertion into a call path allocated for the call;
forwarding, by the enterprise gateway server, the first call invite message to a carrier gateway server situated in a mobile carrier network;
establishing a secure tunnel between the enterprise gateway server and the carrier gateway server; and
sending secure encrypted data via the established secure tunnel.
1 Assignment
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Accused Products
Abstract
A method of establishing a communication link between a mobile terminal of a wireless network and a subscriber of a network, such as an enterprise network, and/or a residential network.
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Citations
24 Claims
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1. A method for processing a Voice over Internet Protocol call in a communication network, comprising:
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receiving, by a private branch exchange situated in an enterprise network, a call origination request of a call destined to a member having a mobile station and a deskphone within the enterprise network; delivering, by the private branch exchange, a first call invite message to an enterprise gateway server situated in the enterprise network; delivering, by the private branch exchange, a second call invite message to the deskphone; allocating, by the enterprise gateway server, a media port for insertion into a call path allocated for the call; forwarding, by the enterprise gateway server, the first call invite message to a carrier gateway server situated in a mobile carrier network; establishing a secure tunnel between the enterprise gateway server and the carrier gateway server; and sending secure encrypted data via the established secure tunnel. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A system for processing a Voice over Internet Protocol call in a communication network, the system comprising:
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an enterprise network including an enterprise gateway server and a private branch exchange coupled with the enterprise gateway server; a cellular network including a carrier gateway server coupled with the enterprise gateway server, wherein the private branch exchange receives a call origination request of a call destined to a member associated with the enterprise network, wherein the member is assigned a deskphone and a mobile station, wherein the private branch exchange delivers a first call invite message to the enterprise gateway server delivers a second call invite message to the deskphone, and wherein the enterprise gateway server allocates a media port for insertion into a call path allocated for the call, the enterprise gateway server forwards the first call invite message to the carrier gateway server; a secure tunnel establishes between the enterprise gateway server and the carrier gateway server; and a secure encrypted data sent via the established secure tunnel. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24)
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Specification