<action application="bind_meta_app" data="1 b s execute_extension::ax XML callsdirect"/>
<extension name="bind_receiver">
<condition field="destination_number" expression="^ax$">
<action application="answer"/>
<action application="read" data="10 10 'tone_stream://%(10000,0,350,440)' attxfer_callthis 30000 *"/>
<action application="execute_extension" data="attended_xfer XML callsdirect"/>
</condition>
</extension>
<extension name="attended_xfer">
<condition field="destination_number" expression="^attended_xfer$"/>
<condition field="${attxfer_callthis}" expression="^(\d+)$">
<action application="set" data="continue_on_fail=true"/>
<action application="set" data="origination_cancel_key=#"/>
<action application="att_xfer" data="sofia/gateway/onesource/${attxfer_callthis}"/>
<anti-action application="eval" data="cancel transfer"/>
</condition>
</extension>