Asterisk 1.6 H323 Fake Answer Supervisory

i’m new in this forum
i have develop a CTI that use Asterisk 1.6 and Alcatel OXO, over H323.
when i make a simple call to mobile over Alcatel Trunk
exten => 110,n,Dial(H323/3334809025@{alctaleoxoip},50,t)
i receive an Answer, but this is a “fake answer”, as the phone number I called, still is not ringing. But Asterisk have a audio channel already open! Instead I need Alcatel opens the audio channel when the call was answered.
Pls it’s very urgent for me, have you some suggestion pls

pls can you give me some suggestion or tips, i have no idea how to fix it.
Thanks in advance devis