[Serusers] Error 483 response to ACK and BYE

[Andres]

SIP wrote:

>    setflag(3);    if (!t_relay())    {       sl_reply_error();    };
>}
>
>But for some reason, it sends it to itself... and moments later, I end up with something like:
>U 63.64.65.66:5060 -> 63.64.65.66:5060ACK sip:201 at 63.64.65.66:5060 SIP/2.0.Record-Route: 
>
Your ACK is going to the wrong port.  If you say SEMS is on 5090 then 
the remote end is not sending the ACK to the correct port.  You will 
need to take a look at the whole SIP message exchange to see if its your 
fault or the other providers fault. 

>So what do you think? Any ideas on what might cause different routing behaviour for locally-registered and non-locally-registered UAs? Would taking the approach of tossing all the rewrites into a separate routing block and calling it from the ACK, CANCEL, BYE, and INVITE blocks be just heading down the wrong path?
>
>  
>
Yes, and again a complete comparison of SIP messages in both test cases 
will reveal why.  Look at the contact header throughout all messages to 
see what happens.  The non-locally-registered UAs are sending the ACK to 
the wrong port.

Andres
http://www.telesip.net