[OpenSIPS-Users] t_relay() not relaying payload

[Thamer Alharbash]

We currently have opensips setup to route through another carrier for  
certain calls. All signaling and media works well except for reinvites.

         if (has_totag()) {

                 # sequential request within a dialog should
                 # take the path determined by record-routing

                 if (loose_route()) {
                         if (is_method("BYE")) {
                                 setflag(1); # do accounting ...
                                 setflag(3); # ... even if the  
transaction fails
                         } else if (is_method("INVITE")) {
                                 # even if in most of the cases is  
useless, do RR for
                                 # re-INVITEs alos, as some buggy  
clients do change route set
                                 # during the dialog.
                                 record_route_preset("<hidden>");
                         }
			fix_nated_contact();
                         t_relay();
...

The first reinvite passes through fine with the nated contact fixed  
for the contact field. The second reinvite does not get relayed  
correctly. Instead a udp packet with no SIP payload at all is sent to  
the UA. We can't find any particular error in the debug log.

Does anyone have thoughts on this?

-- 
Thamer