Patent ID: 8224358

Claim:
A method for implementing one card multiple numbers service, a subscriber card of a called terminal being bound with a plurality of numbers, comprising: receiving a call carrying a called number of a called terminal; determining subscriber card information of the called terminal, a current activated number of the called terminal and a serving Mobile Switching Center (MSC_S) that provides services for the activated number according to the called number; obtaining routing information of the MSC_S and connecting the call to the MSC_S according to the routing information of the MSC_S; and implementing subsequent connecting of the call according to the subscriber card information of the called terminal; wherein the determining subscriber card information of the called terminal, the current activated number of the called terminal and the serving Mobile Switching Center (MSC_S) that provides services for the activated number according to the called number comprises: receiving, by a secondary Home Location Register (HLR) to which the called number is homed, a location request carrying the called number; sending, by the secondary HLR, a route request carrying the called number information to a primary HLR where respective registered numbers of a called user are stored; and determining, by the primary HLR, the subscriber card information of the called terminal, the current activated number of the called terminal and the MSC_S that provides services for the activated number according to the called number.