CALL PROCESSING METHOD ACCORDING TO NUMBER PORTABILITY AND COMMUNICATION SYSTEM THEREOF

摘要

PURPOSE: A call processing method is provided to reduce the line and the signal link of a switch usage rate. CONSTITUTION: A GMSC(Gateway Mobile Switching Center) determines a 3G routing number by analyzing a routing number(335). A final receival network HLR(Home Location Register) extracts call receiving information from a location query message. The final receival network HLR transmits a PRN(Providing Roaming Number) to a final receival network exchanger through the extracted reception information(350). The final receival network HLR transmits a location query response message to the exchanger(360). The final receival network HLR transmits the response message to the exchanger(370).