На каждого агента запрашивает полный конфиг
grep BZIP -n /usr/src/freeswitch/build/getlib.sh6:BZIP=/bin/bzip2
28: bz2|tbz2) UNZIPPER=$BZIP ;;
6:BZIP=
<variables>
...
<variable name="provider" value="sipnet"/>
...
</variables><variables>
...
<variable name="provider" value="multifon"/>
...
</variables><extension name="OUT" continue="true">
<condition field="destination_number" expression="^\d{9,15}$">
<action application="bridge" data="sofia/gateway/${provider}/${destination_number}"/>
</condition>
</extension>