Patent ID: 6888803

Claim:
A method of providing end office wireline telephony services to wireless telephony subscribers using a packet data network, the method comprising: mapping a subscriber's wireless telephony protocol to a packet data network protocol; managing a subscriber's wireless mobility services for a wireless call, the managing comprising sending call origination messages to a first control node on the packet data network; and mapping packet data network protocol information pertaining to the wireless call to an end office access protocol, such that the wireless call can utilize all of the end office wireline telephony services associated with an end office telephony switching network, wherein managing the subscriber's wireless mobility services includes call delivery managing, the call delivery managing comprising: mapping termination messages from the end office access protocol used by an end office telephony switch to a call control protocol used by the packet data network; sending the termination messages to a second control node on the packet data network; determining a serving wireless base station controller; sending a routing request message to a serving switch if the serving wireless base station controller is not on the packet data network; providing a directory number to be used to deliver the wireless call to the serving switch through a public switching telephone network (PSTN); formulating, in a third call control node of the packet data network, a re-directing call control message to a gateway associated with the end office telephony switch the initiated termination; formulating, in the gateway associated with the end office telephony switch that initiated termination, a second re-directing call control message using the end office access protocol; and re-directing the wireless call through the public switching telephone network (PSTN) using the directory number supplied by the gateway.