[SIPForum-discussion] who can help me? thx!

[polarismg at hotmail.com]

cai youyuan,您好！

	The Record-Route heade at r field is inserted by proxies in a request to
   force future requests in the dialog to be routed through the proxy.

   The Route header field is used to force routing for a request through
   the listed set of proxies.

	So Route header includes a list of proxy, any proxy in the route has to comply the list.

	Record-Route header is used by the proxy that force all future requests thoughtout itself.( if there is no Record-Route, the requests outside currect transaction may forget it)

======= 2005-07-21 14:10:57 您在来信中写道：=======

>how to understand Record-Route and Route header field in sip, which 
>difference between them?
>expect your answer, any letter is welcome.
>
>caiyouyuan
>
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　　　　　　　　polaris at ustc.edu
　　　　　　　　　　2005-07-21