• http://gate.isp.un/unix/VBox/FreePBX%201910-2.ova
• FreePBX 13 руководство

• Память от 2Gb
• https://www.freepbx.org/downloads/

• В визарде все ответы по умолчанию (Skip или Yes)
• Большая пауза в конфигурационном визарде после выбора временной зоны

Username: admin
Password: Pa$$w0rd
Admin Email address: userX@isp.un

# ifconfig eth0 inet 172.16.1.100+X/24

# route add default gw 172.16.1.254

Connectivity - Firewall - Disable Firewall

# systemctl stop fail2ban

Settings - Asterisk SIP Settings
  External Address: 172.16.1.100+X

Application-Extensions

  Add Extensions -> PJSIP
  User Extension: 402
  Display Name: Petr Petrov
  Secret: tpassword402
  Link to a Default User: Create New User
  Username: user2   Use Custom Username
  Password For New User: password2


Connectivity -> Trunks
Add Trunk -> Add...pjsip...
  Trunk Name: PSTN
  Outbound CallerID: 8495NNNNNNN
  Username: 00000X
  Secret: spasswordX
  SIP Server: voip1.un
  Contact User: 8495NNNNNNN
  From Domain: voip1.un
  From User: 00000X

Connectivity -> Outbound Routes
  Route Name: ToPSTN
  Trunk Sequence for Matched Routes: PSTN
  Dial Patterns (match pattern): 8XXXXXXXXXX

Connectivity -> Inbound Routes
  Description: FromPSTN
  DID Number: 8495NNNNNNN
  Set Destination: Ext 403

http://172.16.1.100+X/ucp/

• Во FreePBX предусмотрено использование пользовательских (custom) файлов

# cat /etc/asterisk/extensions_custom.conf

exten => 301,1,Answer()
exten => 301,n,Playback(hello-world)
exten => 301,n,SayDigits(X)
exten => 301,n,Hangup()

[from101] ; no need, use DAHDI Channel
exten => s,1,Dial(DAHDI/1,20)
exten => s,n,Hangup()