[Serusers] Is RTPproxy needed even when there is a Cisco PIX?
klaus.mailinglists at pernau.at
Thu Jul 13 13:01:25 CEST 2006
Ricardo Carvalho wrote:
> I'm deploying a VoIP server using SER and I would like to know if I need
> to install RTPproxy (or Mediaproxy), because the network where the
> server will be placed already has a Cisco PIX 515E which has this
> feature that analyses headers of SIP messages and I suppose that
> rewrites them to avoid NAT problems.
The Cisco PIx helps you in rewriting SIP messages if your SIP proxy is
behind NAT - that means if your Cisco-PIX network uses NAT, the Cisco
PIX provide means to solve this NAT issue.
But I do not know if it is capable of "far end NAT traversal".
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