Hi,
i am trying to create an event once incoming call is canceled by the CALLER (for example waiting a long time), then a script will run(for example sending mail for missed call)
i have tried the DIAL command and to obtain the CANCEL event - but once it is tested - no action is taken (The dial is done to external number - Call FWD)
(Noting was seen in the logs)
Anyone can advise in related?
from the logs once it was canceled:
== Spawn extension (CALLED_ID, start, 2) exited non-zero on ‘SIP/CT_1-0000055e’
from the file:
same => n,Dial(SIP/CT_1/0${Called},59)
same => n,GotoIf(["{DIALSTATUS}" = “CANCEL”]?lbl_X:)
same => n(lbl_X),System(/var/lib/asterisk/agi-bin/MailSenderVer)
Our asterisk version is 
Asterisk 15.3.0