Hey @miconda,
Yes, calling it in CANCEL block. More complete script would be like this:
```
if (is_method("CANCEL")) {
if($hdr(Reason)=="SIP;cause=487;text=ORIGINATOR_CANCEL")
t_set_no_e2e_cancel_reason(1);
if (t_check_trans()) route(RELAY);
exit;
}
```
Putting a xlog there shows that the CANCEL matches properly there but no change in reason
(cannot be deactivated).
Ta,
DanB
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