sip packet

[acoe]

i am confussed, cisco docs say that a proxy sever change only the request URL in the sip packet when it passes through the proxy. But, another doc says that the proxy can change the "To" filed when the packet passes through the proxy.

any good docs anyone knows about.

thanks

[carenas123]

You can find a lot of useful documents on SIP here

http://www.cisco.com/cgi-bin/Support/browse/psp_view.pl?p=Internetworking:SIP&viewall=true