[Serusers] Outbound proxy

Klaus Darilion darilion at ict.tuwien.ac.at
Fri Oct 31 15:31:28 CET 2003


Hi Peter!

Not every SIP proxy can deal with clients behind a firewall/NAT box.
Therefore it is useful to us an outbound proxy which is known to be
capable of NATed clients. This proxy will send keep alive messages to
your client to keep the pinhole in your firewall open and rewrites the
IP addresses in the SIP messages of the client behind the FW (or NAT
box).

yes. ser can be an outbound proxy. every proxy can be a outbound proxy.
An outbound proxy is not a special proxy type. Outbound proxy just means
that the SIP UA client always sends the SIP messages to this proxy
instead of contacting the other participant directly.

regards,
klaus


> -----Original Message-----
> From: Peter Hudec [mailto:phudec at postel.sk] 
> Sent: Saturday, November 01, 2003 12:21 AM
> To: serusers at lists.iptel.org
> Subject: [Serusers] Outbound proxy
> 
> 
> hello,
> 
> this is maybe a bit silly question, but.
> 
> Outbound proxy is needed, when UA is behind FW.
> What is the function of this proxy (how can this help the UA to make 
> calls) and what kind of software can do this.
> 
> Can SER be also outbound proxy, or I have to use something else ?
> 
> 	hudecof
> 
> -- 
> mail: [phudec at postel.sk]     www: [http://www.postel.sk]
> cellular: [+421 02 50203166]     icq: [99518783]
> gpg: [http://hudecof.net/data/hudecof.gpg]
> 
> 
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