Hello everybody! I am verifying "On-Reply processing" with a simple script: ... t_on_failure("1"); if (!t_relay()) { sl_reply_error(); break; ... failure_route[1] { append_branch ("sip:wnb@sip.fehome"); t_relay();} When the first dialog is not answered (still in "180 ringing" status) within 20 secs (I have reduced the "fr_inv_timer" accordingly) the first branch gets cancelled and an INVITE is sent for the new branch. That's ok. But in parallel I get the following Error: ERROR: t_should_relay: status rewrite by UAS: stored: 408, received: 487 How to interpret this?