| 摘要 |
The present invention discloses a communications network system including more than one type of communications network and a centralized subscriber database connected with the more than one type of communications network. The centralized subscriber database is able to process calls accessed via a communications network based on the subscriber data and send back the processing result of the calls to the communications network, which will re-route the calls based on the processing result thereof. Based on the above communications network system, this invention also discloses methods for flexible number plan, various simple services, smooth transfer of PHS subscribers to a 3G network, and short message communications based on flexible number plan.
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