CENTRALIZED ROUTING IN HYBRID NETWORKS

摘要

A mobile device utilizes a two-stage dialing solution when roaming on a visited mobile operator (MO) network to implement centralized routing so that a home network portion of a hybrid network is inserted into the path of outbound calls. A remote centralized routing (CR) service interoperates with a CR client on the mobile device. When a call is initiated to a remote party, the CR client calls into an arbitrary roaming routing number that is terminated in the home network. Once the call is connected between the mobile device and home network, the CR client sends a dialing string that includes a destination number of the remote party. The CR service calls the destination number and then bridges the calls to the mobile device and remote party to establish an end-to-end call path between the local and far ends of the call that traverses the home network.

主权项

1. A method performed by a mobile device having telephony capabilities, comprising:
receiving an input that indicates a destination number for an outbound call to a remote party; placing a make-call request to a home network; receiving a roaming routing number (RRN) from the home network in response to the make-call request; calling into the roaming routing number (RRN) over a mobile operator (MO) network, the roaming routing number being terminated within a home network that is a portion of a hybrid network, the hybrid network having loosely coupled network portions including one or more MO networks and the home network; and sending a dialing string to the home network that includes the destination number, the home network responsively placing a call to the destination number and bridging the call from the mobile device and the call to the destination number to create an end-to-end call path between the mobile device and remote party to thereby anchor media, signaling, and context associated with the call in the home network.