Installing Site2Site VPN for telephony purposes

To set up a VPN connection, we need you to supply:

  • The IP address from which you will connect to the PBX

  • A list of subnets on your side

  • On your side, you need to configure the PBX DNS (supplied by mluvii) to, to allow communication through the VPN tunnel

  • On your side you need to enable UDP protocol

Network requirements

In case of restrictive measures (network security at the customer's site) against the Asterisk server (, the following protocols and ports must be enabled on the network (router):

  • UDP communication on ports 10,000-20,000 to/from

  • TCP communication on ports 10,000-20,000 to/from

  • TCP: 443/UDP: 443

  • UDP: 5060

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