| 摘要 |
A communication system is described which allows users to be reachable at multiple endpoints wherever they are around the globe and to use very efficient routing to enable cost savings. The system also allows the user to initiate communication from different devices and locations under one universal identity. This system enables a person to call another person irrelevant of where the called person is present at which location or endpoint. A communication method is described which uses a universal identification number (UIN) known to a client and server, to identify customers; and uses the UIN to access routing services on said server. Corresponding devices, clients and systems are also described.
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