GSM OPTIMAL ROUTING ADDRESS RESOLUTION SCHEME
Original Publication Date: 1999-Jan-01
Included in the Prior Art Database: 2002-Jul-29
GSM Networks process originating calls at a Gateway MSC. Currently, this network element must determine whether the number dialed is a mobile number on the same network, or a PSTN number. A routing table is maintained within the MSC which analyzes the number dialed, and deter- mines (usually from the prefix) the type of number. Mobile calls on the same network are then routed to the appropriate HLR, usually from the GMSC directly but sometimes by an STP function.