Patent ID: 7944896

Claim:
A call processing method, for set-up of a voice over packet communication via a radio access network between a mobile station and one of a plurality of client devices, at least some of the client devices having a plurality of different communication capabilities, the method comprising steps of: receiving registration information from the one client device; receiving and forwarding encoded voice packet information between the mobile station and the one client device, which has been communicated through the radio access network in a manner that is compatible with a default communication capability; in response to the received registration information, identifying a communication capability of the one client device from among the different communication capabilities; communicating information as to the identified communication capability of the one client device, to the mobile station, through the radio access network, wherein the communication of the information as to the communication capability of the one client device to the mobile station follows completion of the receiving and forwarding of voice packet information communicated in the manner compatible with the default communication capability; receiving encoded voice packet information from the mobile station, wherein the voice packet information has been communicated through the radio access network in one manner that is compatible with the communication capability of the client device selected from among a plurality of manners compatible with the plurality of different communication capabilities of the client devices; forwarding the encoded voice packet information to the one client device; and wherein the receiving and forwarding of the encoded voice packet information supports a push-to-talk service offered through the radio access network to the mobile station and the one client device.