STUN server

STUN server

Requirements:

• support for public DNS mapping by the router on the PBX network

• call forwarding from the SIP port of the internal VoIP registrar to the PBX's IP address in the router

• Configured DNS server

The STUN server entered here can be used to connect to external private branch exchanges.

Note: If all external private branch exchanges are connected to the PBX network via a VPN tunnel, no STUN server needs to be entered.

Note: If IP protocol IPv6 is selected, STUN cannot be used as a NAT method either for SIP or RTP.

Further help under VoIP

IP address or URL

Address of the STUN server

Further help under VoIP

Port

Port of the STUN server.

Note: The page Administration > Network > Ports shows an overview of the PBX ports (incoming and outgoing).

Further help under VoIP