Configuracio FreeSwitch

links interessants

https://plone.lucidsolutions.co.nz/linux/freeswitch/install-freeswitch-on-a-centos-v6-vm

https://wiki.freeswitch.org/wiki/Dialplan_XML

https://confluence.freeswitch.org/display/FREESWITCH/Interoperability

http://www.fredshack.com/docs/freeswitch.html

Instalació

rpm -Uvh http://files.freeswitch.org/freeswitch-release-1-0.noarch.rpm   # afegim repo
yum install freeswitch                                                   # freeswitch base
yum install sox freeswitch-sounds*                                       # eines per tractar audio + sons per defecte
yum install freeswitch-lang*                                             # config idiomes
yum install freeswitch-freetdm                                           # interficie amb dispositius de telefonia (TDM) (opcional)
yum install freeswitch-spidermonkey                                      # soport per apps javascript (opcional)
yum install freeswitch-codec-*                                           # codecs audio
yum install freeswitch-application-*                                     # apps natives del freeswitch
yum install freeswitch-format*                                           # soport de diferents formats de fitxer (audio, seq tons,....)
yum install freeswitch-xml-*                                             # eines per CDR via xml i comms xml via http
chkconfig --add freeswitch && chkconfig --levels 35 freeswitch on        # activem el servei
service freeswitch start                                                 # inicialitzem el servei

Configuracio

Path: /etc/freeswitch

fitxers a tocar:

• vars.xml : definicions usades a la resta de la configuracio important establir el domini
• directory/default/*.xml : important canviar els passwords dels usuaris
• autoload_configs/modules.conf : activar xml_rpc si es vol interf web i mod sofia si es vol SIP

vars.xml

• canviat default password (linea 16)
• canviat valor variable domain = cadt.com (linea 55)

modules.conf.xml

• activat mod_xml_rpc (linia 138)
• activat mod_xml_curl (linia 139)
• activat mod_xml_cdr (linia 140)

Proves

Instalacio de twinkle a CentOS 6 yum install twinkle <enter>

Configuracio de twinkle

Create profile
. username 1000
. password cadtboira1
. proxy 192.168.1.95
. Transport/NAT: NAT traversal not needed

Modificacio de regles iptables

-A INPUT -m state --state NEW -m udp -p udp --dport 5060       -j voip-local-IN
-A INPUT -m state --state NEW -m udp -p udp -m multiport --dports 8000:8005 -j voip-local-IN

Activacio de trace sofia

Entra a la consola
* fs_cli <enter>

Activa trace per SIP
* sofia global siptrace <on|off>

Configuracio vars.xml

<X-PRE-PROCESS cmd="set" data="default_password=[PASSWORD]"/>
<X-PRE-PROCESS cmd="set" data="default_vm_password=[PASSWORD]"/>
<X-PRE-PROCESS cmd="set" data="ext_prefix=[PREFIX]"/>
<X-PRE-PROCESS cmd="set" data="domain=[DOMAIN]"/>

Per exemple

<X-PRE-PROCESS cmd="set" data="default_password=cadtboira1"/>
<X-PRE-PROCESS cmd="set" data="default_vm_password=cadtboira1"/>
<X-PRE-PROCESS cmd="set" data="ext_prefix=10"/>
<X-PRE-PROCESS cmd="set" data="domain=cadt.com"/>

Configuracio de servidors SIP

• sip_profiles/external

. localphone

<include>
 <gateway name="localphone-gw">
   <param name="from-domain" value="localphone.com"/>
   <param name="from-user" value="[USERID]"/>
   <param name="realm" value="localphone.com"/>
   <param name="proxy" value="proxy.localphone.com"/>
   <param name="username" value="[USERID]"/>
   <param name="password" value="[PASSWORD]"/>
   <param name="extension-in-contact" value="true"/>
   <param name="retry-seconds" value="30"/>
   <param name="caller-id-in-from" value="false"/>
 </gateway>
</include>

. messagenet

<include>
 <gateway name="messagenet-gw">
   <param name="from-domain" value="messagenet.it"/>
   <param name="from-user" value="[USERID]"/>
   <param name="realm" value="messagenet.it"/>
   <param name="proxy" value="sip.messagenet.it"/>
   <param name="sip-port" value="5061"/>
   <param name="username" value="[USERID]"/>
   <param name="password" value="[PASSWORD]"/>
   <param name="extension-in-contact" value="true"/>
   <param name="retry-seconds" value="30"/>
   <param name="caller-id-in-from" value="false"/>
 </gateway>
</include>

TODO

• recepcio trucades entrants
• mode nit trucades entrants
• passar trucada
• trucades en espera
• trunk entre oficines
• musica trucada en espera ( canviar en funcio estacio)
• telefons cisco
• gateway linies analogiques
• usuaris de confianca externs
• conferencia
• trucada a ultim numero
• tornar trucada
• integracio skype
• redireccio e164 / estalvi cost trucada
• videoconferencia/cursos
• documentacio.....

Abreviacions

• DAHDI: Digium/Asterisk Hardware Device Interface
• CDR: Call Detail Records
• CID: Call ID
• DID: Direct Inward Dialing. Numero extern que crida a extensio interna...
• LCR: least cost routing
• POTS: Plain Old Telephony Service
• FXO: Foreign eXchange Office. Port on es pot conectar una linia de telefon del proveidor
• FXS: Foreign eXchange Service. Port on es pot conectar un telefon
• snom: control tecles extra softphone
• e164: Base de dades consultable via DNS query que converteix de nº POTS a contacte VoIP
• IVR: Interactive Voice Response. menu de veu de la centraleta
• STUN: Session Traversal Utilities for NAT. Esquiva NAT important per connexio directe
• DND: Do Not Disturb
• LCR: Least Cost Routing
• DTMF: Dual Tone Multiple Frequency. Marcat per tons
• FSK: Frequency Shift Keying. Parlant de telefonia es refereix al sistema Bell 202 per enviar el CID
• BLF: Busy Lamp Field. Lums d'activitat de les linies en el telef d'operadora
• TR069: estandard de intercanvi de info de configuracio
• e100: extensio del SIP per respostes provisionals