| 摘要 |
The present disclosure provides methods of establishing communication between endpoints located in different gatekeeper zones. An electronic message comprising (i) an alias for a first endpoint and (ii) an address of a first gatekeeper associated with the first endpoint is delivered from a first computer associated with the first endpoint to a second computer associated with a second endpoint. Alternatively, the deliverance of the message can occur within the same computer. Upon receiving the message, a second endpoint is instructed to replace its original gatekeeper address with the gatekeeper address listed in the message. Subsequently, the second endpoint uses the alias of the first endpoint to establish communication with the first endpoint.
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