Vte 15.05 Asterisk 11 integration

Hi at all

I've just install vte in my customer's network, and in the same subnet is there Asterisk 11 with Freepbx.
I would like to integrate them, but there is something wrong, and no way to make/receive call from vte.

I configure PBX module in vte with asterisk IP and port (5038)
For username/pass i used default user in /ect/asterisk/manager.conf(admin)

When i try to use "click-to-call" a Popup appear but no action in my SIP client(extention configured right in my profile)

Plese help me!
;-)

Thank Enzo