<!-- Preprocessor Variables

       These are introduced when configuration strings must be consistent across modules. 

   -->

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

  <!--<Z-PRE-PROCESS cmd="set" data="sound_prefix=$${base_dir}/sounds/en/us/allison"/>-->

  <!--

      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="internal_ip_v4=192.168.86.254"/>

  <X-PRE-PROCESS cmd="set" data="external_ip_v4=$${local_ip_v4}"/>

  <X-PRE-PROCESS cmd="set" data="domain=$${domain}"/>

  <X-PRE-PROCESS cmd="set" data="hold_music=local_stream://moh"/>

  <!-- xmpp_client_profile and xmpp_server_profile

       xmpp_client_profile can be any string. 

       xmpp_server_profile is appended to "dingaling_" to form the database name

       containing the "subscriptions" table.

       used by: dingaling.conf.xml enum.conf.xml 

  --> 

  <!-- 

       Examples of codec options: (module must be compiled and loaded)

       codecname[@8000h|16000h|32000h[@XXi]]

       XX is the frame size must be multples allowed for the codec

       FreeSWITCH can support 10-120ms on some codecs. 

       We do not support exceeding the MTU of the RTP packet.

​

​

       iLBC@30i         - iLBC using mode=30 which will win in all cases.

       DVI4@8000h@20i   - IMA ADPCM 8kHz using 20ms ptime. (multiples of 10)

       DVI4@16000h@40i  - IMA ADPCM 16kHz using 40ms ptime. (multiples of 10)

       speex@8000h@20i  - Speex 8kHz using 20ms ptime.

       speex@16000h@20i - Speex 16kHz using 20ms ptime.

       speex@32000h@20i - Speex 32kHz using 20ms ptime.

       G7221@16000h     - G722.1 16kHz (aka Siren 7)

       G7221@32000h     - G722.1C 32kHz (aka Siren 14)

       GSM@40i          - GSM 8kHz using 40ms ptime. (GSM is done in multiples of 20, Default is 20ms)

       G722             - G722 16kHz using default 20ms ptime. (multiples of 10)

       PCMU             - G711 8kHz ulaw using default 20ms ptime. (multiples of 10)

       PCMA             - G711 8kHz alaw using default 20ms ptime. (multiples of 10)

       G726-16          - G726 16kbit adpcm using default 20ms ptime. (multiples of 10)

       G726-24          - G726 24kbit adpcm using default 20ms ptime. (multiples of 10)

       G726-32          - G726 32kbit adpcm using default 20ms ptime. (multiples of 10)

       G726-40          - G726 40kbit adpcm using default 20ms ptime. (multiples of 10)

       AAL2-G726-16     - Same as G726-16 but using AAL2 packing. (multiples of 10)

       AAL2-G726-24     - Same as G726-24 but using AAL2 packing. (multiples of 10)

       AAL2-G726-32     - Same as G726-32 but using AAL2 packing. (multiples of 10)

       AAL2-G726-40     - Same as G726-40 but using AAL2 packing. (multiples of 10)

       LPC              - LPC10 using 90ms ptime (only supports 90ms at this time in FreeSWITCH)

       L16              - L16 isn't recommended for VoIP but you can do it. L16 can exceed the MTU rather quickly.

       These are the passthru audio codecs:

       G729             - G729 in passthru mode. (mod_g729)

       G723             - G723.1 in passthru mode. (mod_g723_1)

       AMR              - AMR in passthru mode. (mod_amr)

       These are the passthru video codecs: (mod_h26x)