Tricky. Do you mean "other SIP domain that you have no control over whatsoever"??

If so, you're probably stuck doing some basic src_ip matching if (src_ip==ip.address.of.other.domain) { rewritehostport("ip.address.that.i.want.it.to.go.to"); if (!t_relay()) { blah; blah; blah; }; };

if, you do have some relation with that domain, then you can just add a proxy_authorize. i.e.

if (src_ip==ip.address.of.other.domain) { rewritehostport("ip.address.that.i.want.it.to.go.to"); if (!(proxy_athorize("my.domain", "subscriber")) { if (method!="ACK" & method!="BYE") { proxy_challenge("aptela.com", "0"); break; }; }; if (!t_relay()) { blah; blah; blah; }; };

Java Rockx wrote:

Hi All.

Can someone please show me an example ser.cfg snippet which allows __incoming__ INVITE messages from other SIP domains without becoming an open relay?

Right now I www_challenge() when a REGISTER message comes in.

I know I need to proxy_authorize() somewhere, but I'm not sure how to

Many Thanks! Paul

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