Patent ID: 8059665

Claim:
A method for obtaining a location of a communication station in a first domain by a communication station located in a second domain, comprising the acts of: generating, by the communication station in the second domain, a message and a request for the geographical location of the communication station in the first domain; embedding, by the communication station in the second domain, the request in the message; addressing the message with the embedded request to a proxy server in the second domain; transmitting, by the communication station in the second domain, the message with the embedded request to the proxy server in the second domain via a communication server in the second domain; and receiving, by the communication station in the second domain, a response including the geographical location of the communication station in the first domain determined by the communication station in the first domain, wherein the request is formatted according to a first communication protocol, and the message and response are formatted according to a second communication protocol, and wherein the second communication protocol is session initiation protocol (SIP).