07-11-2013 дата публикации
Номер: US20130294386A1
Принадлежит:
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. 1. A method , comprising:receiving, by a private branch exchange, a call origination request of a call destined to a member having a mobile station and a phone within an enterprise network;transmitting, by the private branch exchange, a first call invite message to an enterprise gateway server;transmitting, by the private branch exchange, a second call invite message to the phone; andallocating, by the enterprise gateway server, a media port for insertion into a call path allocated for the call.2. The method of claim 1 , further comprising:forwarding, by the enterprise gateway server, the first call invite message to a carrier gateway server; andestablishing a secure tunnel between the enterprise gateway server and the carrier gateway server.3. The method of claim 2 , further comprising:performing, by the carrier gateway server, a location request.4. The method of claim 3 , further comprising:receiving, by the enterprise gateway server, a temporary routing number required to deliver the call to the mobile station.5. The method of claim 4 , further comprising:forwarding, by the carrier gateway server, the temporary routing number to the enterprise gateway server.6. The method of claim 5 , further comprising:routing, by the enterprise gateway server, the call to the temporary routing number.7. The method of claim 5 , further comprising:receiving, by the enterprise gateway server, an indication that the mobile station is ringing.8. The method of claim 7 , further comprising:notifying, by the enterprise gateway server, the private branch exchange that the mobile station is ringing.9. The method of claim 8 , further comprising:receiving, by the enterprise gateway server, an indication that the call has been answered at the mobile station; andnotifying, by the enterprise gateway server, ...
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