Patent ID: 9380506
Filing Date: 2016-06-28
CPC Classification: H04W

Claim Text:
1. A method, comprising: locating, by a user equipment registered in a first network, a second network, wherein one of the first network and the second network comprises a circuit switched network and another of the first network and the second network comprises a packet switched network; transmitting, by the user equipment, a request for a handover to the second network, the request being received by at least one of an enterprise gateway server of the packet switched network and a carrier gateway server of the circuit switched network; and determining, by a voice call continuity service, whether to allow the handover by an enterprise network node and a carrier network node, wherein whether to allow the handover comprises at least one of dual approval by both the enterprise network node and the carrier network node and single approval by one of the enterprise network node and the carrier network node which is designated as an override authority, wherein the enterprise network node is controlled by an enterprise network and the carrier network node is controlled by a carrier network.