| 摘要 |
A One Number Link You ONLY number is assigned to each subscriber, which identifies the subscriber exclusively. The said subscriber can be an IP subscriber or an ordinary PSTN subscriber. An ONLY Service Server and an ONLY User Server are configured, any ONLY service call initiated by a PSTN subscriber or an IP network subscriber is transmitted to the ONLY Server, and through cooperation between the Service ONLY Server and the ONLY User Server, the call connection control is carried out according to the call control strategy customized by the subscriber in advance, to implement communication between PSTN and IP network subscribers. If the call fails, a new call can be initiated automatically according to the call control strategy list customized by the subscriber in advance. Problems in number, charging, mapping of numbers and subscriber displacement in communication between the PC subscribers and the common phone subscribers can be easily solved.
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