[Serusers] t_relay won't give up

[Brett's Asterisk Account]

Hey All,
I'm having a problem. I'm attempting a:
if (!t_relay()) {
    route(2);
    break
}

When the destination ignores the request (perhaps the domain portion of the RURI points to a server that is down?), I see the INVITE processed like 10 times. Here is the trace..
 11.066729 192.168.20.10 -> 192.168.50.100 SIP/SDP Request: INVITE sip:2015551212;rn=2015550099;npdi=yes at 192.168.50.100;dtg=HSTNSIPORIG02;user=phone, with session description
 4(24793) ******** INCOMMING CALL FROM TRUSTED IP ADDRESS
 4(24793) INFO Checking ANI from Trusted IP
 4(24793) INFO: ANI Verification successful for trusted IP
 4(24793) ****** INCOMING CALL PASSED SECURITY CHECKS
 4(24793) INFO: Begining attempt 1 DID route for trusted ip customer
 4(24793) ****** FOUND DID TABLE ROUTE
 11.318093 192.168.50.100 -> 192.168.20.10 SIP Status: 100 trying -- your call is important to us
 11.318223 192.168.50.100 -> 10.1.2.3     SIP/SDP Request: INVITE sip:2015551212 at 10.1.2.3, with session description
 11.425865 192.168.50.100 -> 10.1.2.3     SIP/SDP Request: INVITE sip:2015551212 at 10.1.2.3, with session description
 13.429423 192.168.50.100 -> 10.1.2.3     SIP/SDP Request: INVITE sip:2015551212 at 10.1.2.3, with session description
 17.436544 192.168.50.100 -> 10.1.2.3     SIP/SDP Request: INVITE sip:2015551212 at 10.1.2.3, with session description
 21.443657 192.168.50.100 -> 10.1.2.3     SIP/SDP Request: INVITE sip:2015551212 at 10.1.2.3, with session description
 23.328599 192.168.20.10 -> 192.168.50.100 SIP Request: CANCEL sip:2015551212;rn=2015550099;npdi=yes at 192.168.50.100;dtg=UTEXHSTNSIPORIG02;user=phone
 3(24790) ******** INCOMMING CALL FROM TRUSTED IP ADDRESS
 3(24790) INFO Checking ANI from Trusted IP
 3(24790) INFO: ANI Verification successful for trusted IP
 3(24790) ****** INCOMING CALL PASSED SECURITY CHECKS
 3(24790) INFO: Begining attempt 1 DID route for trusted ip customer
 3(24790) ****** FOUND DID TABLE ROUTE
 23.581023 192.168.50.100 -> 192.168.20.10 SIP Status: 200 ok -- no more pending branches
 25.451776 192.168.50.100 -> 10.1.2.3     SIP/SDP Request: INVITE sip:2015551212 at 10.1.2.3, with session description
 29.458898 192.168.50.100 -> 10.1.2.3     SIP/SDP Request: INVITE sip:2015551212 at 10.1.2.3, with session description
 33.466012 192.168.50.100 -> 10.1.2.3     SIP/SDP Request: INVITE sip:2015551212 at 10.1.2.3, with session description
 37.473130 192.168.50.100 -> 10.1.2.3     SIP/SDP Request: INVITE sip:2015551212 at 10.1.2.3, with session description
 40.479489 192.168.50.100 -> 192.168.20.10 SIP Status: 408 Request Timeout
 40.487743 192.168.20.10 -> 192.168.50.100 SIP Request: ACK sip:2015551212;rn=2015550099;npdi=yes at 192.168.50.100;dtg=HSTNSIPORIG02;user=phone

10.1.2.3 is not a real node.. but it really does attempt to send a call there.. I'd like for it to attempt, die, and process the next route.


I've considered using t_on_failure, but it's not really what I want.. I want this failure to occur for any status >500 (ie: 5xx and 6xx) AND for dead SIP (ie, no SIP reply at all). t_on_failure will catch too much. Also, it takes too long to timeout. 

I could have sworn I had this working with t_relay the other day. Am I doing something wrong? What is making it retry over and over?

Thanks,
Brett