Freeswitch

Freeswitch

• version 1.6.20

Install Freeswitch

1. install freeswitch repo
   • yum install -y http://files.freeswitch.org/freeswitch-release-1-6.noarch.rpm
2. Install freeswitch and packages dependancy
   • yum install -y freeswitch-config-vanilla freeswitch-lua freeswitch-codec-opus freeswitch-sounds-music-8000 freeswitch-sounds-en-us-callie-8000

Freeswitch Configuration

1. mod_hash
   • using vars.xml <X-PRE-PROCESS cmd="set" data="max_calls=1"/>
2. Mod_lua

<configuration name="lua.conf" description="LUA Configuration">
  <settings>
    <param name="xml-handler-script" value="directory.lua"/>
    <param name="xml-handler-bindings" value="directory"/>
  </settings>
</configuration>

3. Dial-plan

    <extension name="Local_Extension">
      <condition field="destination_number" expression="^(10[01][0-9])$">
	<action application="export" data="dialed_extension=$1"/>
	<action application="limit" data="hash ${domain_name} ${ani} ${max_calls} !NORMAL_TEMPORARY_FAILURE"/>
	<action application="log" data="DEBUG DIALING Extension DialURI ${dialed_extension} [${max_calls}]"/>
	<action application="limit" data="hash ${domain_name} ${dialed_extension} ${max_calls} !NORMAL_TEMPORARY_FAILURE"/>
	<!-- bind_meta_app can have these args <key> [a|b|ab] [a|b|o|s] <app> -->
	<action application="bind_meta_app" data="1 b s execute_extension::dx XML features"/>
	<action application="bind_meta_app" data="2 b s record_session::$${recordings_dir}/${caller_id_number}.${strftime(%Y-%m-%d-%H-%M-%S)}.wav"/>
	<action application="bind_meta_app" data="3 b s execute_extension::cf XML features"/>
	<action application="bind_meta_app" data="4 b s execute_extension::att_xfer XML features"/>
	<action application="set" data="ringback=${us-ring}"/>
	<action application="set" data="transfer_ringback=$${hold_music}"/>
	<action application="set" data="call_timeout=30"/>
	<!-- <action application="set" data="sip_exclude_contact=${network_addr}"/> -->
	<action application="set" data="hangup_after_bridge=true"/>
	<!--<action application="set" data="continue_on_fail=NORMAL_TEMPORARY_FAILURE,USER_BUSY,NO_ANSWER,TIMEOUT,NO_ROUTE_DESTINATION"/> -->
	<action application="set" data="continue_on_fail=true"/>
	<action application="hash" data="insert/${domain_name}-call_return/${dialed_extension}/${caller_id_number}"/>
	<action application="hash" data="insert/${domain_name}-last_dial_ext/${dialed_extension}/${uuid}"/>
	<action application="set" data="called_party_callgroup=${user_data(${dialed_extension}@${domain_name} var callgroup)}"/>
	<action application="hash" data="insert/${domain_name}-last_dial_ext/${called_party_callgroup}/${uuid}"/>
	<action application="hash" data="insert/${domain_name}-last_dial_ext/global/${uuid}"/>
	<!--<action application="export" data="nolocal:rtp_secure_media=${user_data(${dialed_extension}@${domain_name} var rtp_secure_media)}"/>-->
	<action application="hash" data="insert/${domain_name}-last_dial/${called_party_callgroup}/${uuid}"/>
	<action application="bridge" data="user/${dialed_extension}@${domain_name}"/>
	<action application="answer"/>
	<action application="sleep" data="1000"/>
	<action application="bridge" data="loopback/app=voicemail:default ${domain_name} ${dialed_extension}"/>
      </condition>
    </extension>

4. Create lua script: vi /usr/share/freeswitch/scripts/directory.lua
5. Startup
   • systemctl start freeswitch.service
6. Start up at boot time
   • systemctl enable freeswitch.service
7. Shutdown firewalld and disable firewalld
   • systemctl stop firewalld
   • systemctl disable firewalld.service
8. mod_callcenter
9. Mod_event_socket