Redirect Server

The Redirect servers are used by SIP to redirect clients to the user agent they are attempting to contact. If a user agent makes a request, the Redirect server can respond with the IP address of the user agent being contacted.This is different from a Proxy server, which forwards the request on your behalf, as the Redirect server essentially tells you to contact them yourself.The Redirect server also has the ability to “fork” a call, by splitting the call to several locations. If a call was made to a particular user, it could be split to a number of different locations, so that it rang at all of them at the same time.The first of these locations to answer the call would receive it, and the other locations would stop ringing.

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