System and method for processing callback requests included in web-based procedure calls through a firewall

A method of processing callback requests included in web procedure calls through a firewall is discussed. A requesting device contacts a receiving device and requests the performance of a procedure. The procedure call includes a callback request that includes a destination address and port on the requesting device, as well as the address of a broker device. The receiving device parses the procedure call and identifies the requested service and the callback request and then terminates the connection with the requesting device. The receiving device executes the procedure and then requests a new connection to the broker device once the results of the requested service are obtained. The broker verifies the identity of the device and establishes a connection with the receiving device. The receiving device then transmits the results of the requested procedure to the broker which then forwards the results to the requesting device.