asterisk users - Oct 2012 - Anyone help: call leg do not exist err

Dear Sir,

I use asterisk 1.8.11 (192.168.100.202)to connect lync server .I use tls port
5068 to connect to this lync server .
The tls is ok to establish and I make call from softphone 3200 (register to
Asterisk) and
dial 9XXXXXXX (9+85225082162) , this prefix will dial to trunk lync_trunk and
pass to lync server(192.168.100.14) using tls .
But the lync client in opposite side ringing and they recevie the call , but
when they answer the call , the call drop and hang up immediately .In sip trace
I see there is "call leg not exits" error ..... what is wrong ...Below
is the related setting and trace ...
I attach the trace and config setting in attach file .

Regard/Chui king man
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