I want to reject an incoming call from a mobile number in the public context and callback to it
<include>
<extension name="public_did">
<condition field="destination_number" expression="^(88888888)$">
<action application="set" data="domain_name=$${domain}"/>
<action application="log" data="INFO domain is $${domain}"/>
<action application="set" data="callerID = $${caller_id_number}"/>
<action application="log" data="INFO src number is $${callerID}"/>
<action application="respond" data="503"/>
<action application="bridge" data="{sip_auth_username=1003,sip_auth_password=R@D~o$121$@IIITD}sofia/external/
1003@52.38.67.78 9769658019"/>
<!--<action application="respond" data="reponse_info" data="407"/> -->
<!--<action application="transfer" data="5000 XML default"/> -->
</condition>
</extension>
</include>