Telecommunications – Radiotelephone system – Zoned or cellular telephone system
Reexamination Certificate
2002-03-29
2008-03-25
Eng, George (Department: 2617)
Telecommunications
Radiotelephone system
Zoned or cellular telephone system
C455S445000, C455S433000, C455S428000, C455S403000
Reexamination Certificate
active
07349693
ABSTRACT:
The present invention discloses a method for implementing a call connection between a non-local calling subscriber and a local called subscriber who is an intelligent network subscriber. The method comprises the following steps: a. a non-local Gateway Mobile Switching Center (GMSC) initiating a Send Routing Information (SRI) operation to a Home Location Register (HLR) to request the roaming number of the called subscriber; b. the HLR returning a virtual roaming number to the non-local GMSC, and the non-local GMSC connecting the call to a Service Switching Point (SSP) of an intelligent platform according to the virtual roaming number; c. the SSP initiating a SRI operation to the HLR with the virtual roaming number in an Initialize Address Information (IAI) message; d. after finding the number in the SRI operation is a virtual roaming number allocated before, the HLR returning the actual subscriber number corresponding to the roaming number and CAMEL Subscription Information (CSI) data of the intelligent network subscriber corresponding to the actual subscriber number to said SSP; and e. the SSP triggering service logic based on said CSI data, and connecting the call to a Visited Mobile Switching Center (VMSC) corresponding to the called subscriber. With this method, the billing system of mobile intelligent network can be improved.
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Eng George
Huawei Technologies Co. Ltd.
Phan Huy Q.
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