| 摘要 |
A communication control system connects a call using a local service number valid within a local service area within which a user equipment is positioned, and forwards data via an internet protocol network, including a local number converter and a session controller group. The local number converter is located in each local service area, in response to a query specifying a local service number, accesses a database of correspondence between a local service number valid within the local service area and a global routable number, and determines a global routable number corresponding to the specified local service number. The session controller group accepts a call request including the local service number from the user equipment, queries the local number converter in the local service area to convert the local service number into a global routable number, and routes the internet protocol network using the global routable number.
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