Extensions.ael: (DOESN'T WORK)

...
Monitor(wav,${UNIQUEID},mb);
Dial(SIP/${EXTEN}|30|TtWw);
...

Extensions.conf: (WORK !!!!) 

...
exten => s,1,Monitor(wav,${UNIQUEID},mb)
exten => s,2,Dial(SIP/${EXTEN}|30|TtWw)
...