No ringing when dialing

[SOUISSI]

Hi,

We are using goautodial 3.3 update from 3.0 ISO installation, agent needs to hear ringing tones while dialing manuel number

Asterisk version: Asterisk 1.8.23.0-1_centos5.go RPM

Dial plan:
exten = _9X.,1,AGI
exten = _9X.,2,Dial(${IAXTRUNK}/${EXTEN:1},,tTor)
exten = _9X.,3,Hangup

No additional hardware

I tested exten = _9X.,2,Dial(${IAXTRUNK}/${EXTEN:1},,tToR) but no change
Thanks