my configure in public.xml like:

<extension name="asteirsk">

        <condition field="destination_number" expression="(\d+)$" require-nested="true">

            <condition field="network_addr" expression="^192\.168\.1\.123$"  break="never">

                <action application="set" data="hangup_after_bridge=true"/>

                <action application="export" data="sip_h_X-ROUTE=LOOKUP"/>

                <action application="set" data="bypass_media=true"/>

                <action application="bridge" data="user/${destination_number}@${domain_name}"/>

                <anti-action application="set" data="hangup_after_bridge=true"/>

                <anti-action application="export" data="sip_h_X-ROUTE=LOOKUP"/>

                <anti-action application="set" data="bypass_media=true"/>

                <anti-action application="bridge" data="sofia/internal/${destination_number}@192.168.1.123"/>

            </condition>

        </condition>

    </extension>

Call is process ok, But I see that when I answer call in destination, asterisk server alway send 200OK to my FS, FS return ACk, but asterisk resend 200OK.

if any one can help, thank all alot. I am getting this stage to long and cant find any solution here.

Thanks, 

ThanhTruong