as Schiesa suggested:
go to
/etc/asterisk/extensions_additional.conf
and change [sub-record-cancel]
from:
[sub-record-cancel]
include => sub-record-cancel-custom
exten => s,1,Set(REC_POLICY_MODE=${REC_POLICY_MODE_SAVE})
exten => s,n,ExecIf($["${REC_STATUS}"!="RECORDING"]?Return())
exten => s,n,StopMixMonitor()
exten => s,n,Set(REC_STATUS=)
exten => s,n,Set(MON_BASE=${IF($[${LEN(${MIXMON_DIR})}]?${MIXMON_DIR}:${ASTSPOOLDIR}/monitor/)}${YEAR}/${MONTH}/${DAY}/)
exten => s,n,Set(MON_FMT=${IF($[${LEN(${MIXMON_FORMAT})}]?${IF($["${MIXMON_FORMAT}"="wav49"]?WAV:${MIXMON_FORMAT})}:wav)})
exten => s,n,ExecIf($[${LEN(${CALLFILENAME})} & ${STAT(f,${MON_BASE}${CALLFILENAME}.${MON_FMT})}]?System(rm -f ${MON_BASE}${CALLFILENAME}.${MON_FMT}))
exten => s,n,Set(CALLFILENAME=)
exten => s,n,Set(CDR(recordingfile)=)
exten => s,n,Return()
;--== end of [sub-record-cancel] ==--;
to:
[sub-record-cancel]
;--== end of [sub-record-cancel] ==--;