freeswitch/conf/rayo/vars.xml

<include>
  <X-PRE-PROCESS cmd="set" data="sound_prefix=$${sounds_dir}/en/us/callie"/>

  <!--
      This setting is what sets the default domain FreeSWITCH will use if all else fails.
      
      FreeSWICH will default to $${local_ip_v4} unless changed.  Changing this setting does 
      affect the sip authentication.  Please review conf/directory/default.xml for more
      information on this topic.
  -->
  <X-PRE-PROCESS cmd="set" data="domain=$${local_ip_v4}"/>
  <X-PRE-PROCESS cmd="set" data="domain_name=$${domain}"/>
  <X-PRE-PROCESS cmd="set" data="hold_music=local_stream://moh"/>
  <X-PRE-PROCESS cmd="set" data="use_profile=external"/>

  <!--
      Enable ZRTP globally you can override this on a per channel basis
      
      http://wiki.freeswitch.org/wiki/ZRTP (on how to enable zrtp)
  -->
  <X-PRE-PROCESS cmd="set" data="zrtp_secure_media=true"/>

  <X-PRE-PROCESS cmd="set" data="global_codec_prefs=PCMU,PCMA"/>
  <X-PRE-PROCESS cmd="set" data="outbound_codec_prefs=PCMU,PCMA"/>

  <!-- 
       THIS IS ONLY USED FOR DINGALING

       bind_server_ip

       Can be an ip address, a dns name, or "auto". 
       This determines an ip address available on this host to bind.
       If you are separating RTP and SIP traffic, you will want to have
       use different addresses where this variable appears.
       Used by: dingaling.conf.xml
  -->
  <X-PRE-PROCESS cmd="set" data="bind_server_ip=auto"/>

  <!-- unroll-loops
       Used to turn on sip loopback unrolling.
  --> 
  <X-PRE-PROCESS cmd="set" data="unroll_loops=true"/>

  <X-PRE-PROCESS cmd="set" data="outbound_caller_name=FreeSWITCH"/>
  <X-PRE-PROCESS cmd="set" data="outbound_caller_id=0000000000"/>

  <!-- various debug and defaults -->
  <X-PRE-PROCESS cmd="set" data="call_debug=false"/>
  <X-PRE-PROCESS cmd="set" data="console_loglevel=info"/>
  <X-PRE-PROCESS cmd="set" data="default_areacode=617"/>
  <X-PRE-PROCESS cmd="set" data="default_country=US"/>

  <!-- if false or undefined, the destination number is included in presence NOTIFY dm:note.
       if true, the destination number is not included -->
  <X-PRE-PROCESS cmd="set" data="presence_privacy=false"/>

  <!--
      SIP and TLS settings. http://wiki.freeswitch.org/wiki/Tls
  -->
  <X-PRE-PROCESS cmd="set" data="sip_tls_version=tlsv1"/>

  <!-- Rayo -->
  <X-PRE-PROCESS cmd="set" data="rayo_ip=$${local_ip_v4}"/>
  <X-PRE-PROCESS cmd="set" data="rayo_domain_name=$${rayo_ip}"/>

  <!-- External SIP Profile -->
  <X-PRE-PROCESS cmd="set" data="external_rtp_ip=$${local_ip_v4}"/>
  <X-PRE-PROCESS cmd="set" data="external_sip_ip=$${local_ip_v4}"/>
  <X-PRE-PROCESS cmd="set" data="external_sip_port=5060"/>
  <X-PRE-PROCESS cmd="set" data="external_tls_port=5061"/>
  <X-PRE-PROCESS cmd="set" data="external_tls_enable=false"/>
  <X-PRE-PROCESS cmd="set" data="external_tls_dir=$${base_dir}/conf/ssl"/>
  <X-PRE-PROCESS cmd="set" data="external_auth_calls=false"/>
</include>