Call flow system and method for use in a legacy telecommunication system

摘要

A method of operating a network server, such as a mobile application gateway, connect devices on a cellular or carrier network with individual networks, such as enterprise voice and data networks or residential networks. The effects of the present invention are far reaching in terms of transferring effective call control from the cellular network into the control of the individual network, such as the enterprise, and enabling new business models for the purchase of cellular service from a public cellular carrier by an enterprise.

主权项

1. A method, comprising:
receiving, from a mobile switching network, by a carrier gateway server deployed in a cellular network, an origination request for a session destined for a mobile station associated with an enterprise network; providing, by an enterprise gateway server, a first routing information to the carrier gateway server, the first routing information comprising at least one routing instruction based on at least one policy; wherein the at least one policy comprises enterprise session routing criteria for at least one of a restriction on times the session may be routed and restrictions on destinations where the session may be routed enacting the at least one policy and the session routing criteria responsive to an enterprise user account access operation; transmitting from the carrier gateway server to the mobile switching network; a second routing information, the second routing information comprising at least one of destination information and session path information for routing the session to a destination; and routing, by the mobile switching network, the session to the destination.