You will receive the following information from Belcentrale:

• Your phone number : for example 31201234567
  
• The (proxy) server: for example pbx12.belcentrale.nl
  
• The password: for example afT@owjWK
  

Login to the Axeos PBX, go to menu options 'Dial Settings' and choose 'Outbound'. Create a new outbound trunk.

Screenshots

You need to set the 'SIP Register refresh' to 60.

Once your outbound SIP trunk has been created, you can enter your inbound number at 'Dial Settings / Inbound' using the following number format: 31201234567

Firewall Settings

It may be required to open TCP port 5060 on your firewall for incoming/outgoing connections. UDP ports 10000 to 20000 also needs to be open.