Patent ID: 8787353
Filing Date: 2014-07-22
Classification: H04L,H04Q,H04W

Abstract:
1. A method for directed call establishment to anchor selected cellular calls from a public land mobile network in a Voice over Internet Protocol (VoIP) or an IP Multi-Media Subsystem (IMS) network, comprising: intercepting, using a mobile handset, a call dialed at the mobile handset on the public land mobile network; sending a directed call establishment (DCE) request message, over a data network using a packet network protocol, including the dialed number to request a DCE dial number (DCE/DN) from a converged services node (CSN), the packet network protocol being distinct from a cellular network protocol used in the public land mobile network; receiving the DCE request message at the CSN; extracting location information, handset identification and called number from the DCE request message; selecting the DCE/DN; storing the extracted handset identification and the called number indexed by a copy of the selected DCE/DN; preparing a DCE response message containing the DCE/DN; receiving at the mobile handset the DCE/DN from the CSN in response to the DCE response message; automatically launching a cellular call over the public land mobile network from the mobile handset to the DCE/DN; completing a call to the called number after the CSN receives a call setup request message containing the DCE/DN; wherein completing the call to the called number comprises: anchoring the call in the CSN, the CSN exercising control over the call after the call has been established.