| 摘要 |
The present invention relates to a mobile communication system comprising: at least one subscriber database (HLR) containing subscriber data, and exchanges (GMSC, MSC) connected to each other by communication paths (L1, L2), at least one of said exhanges (GMSC) comprising means for transmitting a request (2.2) to said subscriber database (HLR), said request including at least a B-subscriber number of a terminating call. To provide a system which is capable of selecting the optimum communication path for a terminating call said subscriber database (HLR) comprises means for retrieving and transmitting to said exchange (GMSC) a basic service code that corresponds to the B-subscriber number included in the request (2.2), and said exchange (GMSC) comprises means (1) for routing said terminating call to the B-subscriber number by using communication paths (L1) that fulfill the property requirements of the call type indicated by said basic service code.
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