Patent ID: 7349693
Filing Date: 2008-03-25
Classification: H04W

Abstract:
1. A method for implementing a call connection between a non-local calling subscriber and a local called subscriber who is an intelligent network subscriber, comprising: a non-local Gateway Mobile Switching Center (GMSC) initiating a Send Routing Information (SRI) operation to a local Home Location Register (HLR) to request a roaming number of the called subscriber; the HLR returning a virtual roaming number allocated by the HLR to the non-local GMSC, the virtual roaming number being allocated according to the address of a Service Switch mci Point (SSP) of an intelligent platform; the non-local GMSC connecting the call to the SSP with the virtual roaming number; the SSP initiating a SRI operation to the HLR with the virtual roaming number; after finding a number contained in the SRI operation is a virtual roaming number allocated before, the HLR returning the actual subscriber number (MSISDN) of the called subscriber corresponding to the virtual roaming number and CAMEL Subscription Information (CSI) data of the called subscriber to said SSP; and the SSP triggering service logic based on said CSI data.