Reliable related billing ID information method for call delivery

摘要

A system and method for communicating accounting and billing operations information between a gateway mobile switching center (G-MSC) and a visiting mobile switching center (V-MSC) to which a call is being directed to a mobile station within a cellular telecommunications network. The method comprises the steps of: generating in the serving MSC first billing identification data for the call; transmitting the first billing identification data to the destination MSC; generating second billing identification data in the destination MSC corresponding to a call transaction that has occurred in the destination MSC; and returning the second billing identification data as related billing identification data to the serving MSC after an outcome for the call has been determined in the destination MSC. The outcome of the call is determined when a page response has been received in the V-MSC from the mobile station or alternatively, a call has been delivered by seizing a trunk from the serving MSC to the destination MSC. The method has application in a data message handler communication protocol system for communicating accounting and billing operations within the cellular telecommunications network.