Dial Command timeout problem

Hello everyone, I am using asterisk 13 and I am presenting a small
problem. What I am looking for is that after 15 seconds if the call has
not gone through to play the announcement, but it is hanging up the call
after 15 seconds.

exten => _011.,1(lbl_vdp-outbound_4),Dial(DAHDI/g0/${EXTEN:5},15)
exten => _011.,n,(lbl_vdp-outbound_5)Playback(announcement1)
exten => _011.,n(lbl_vdp-outbound_5),Hangup()

Please post logs of the failed call.