481
COMfortel 1400 IP/2600 IP/3600 IP - Firmware V2.6 - Operation/Configuration - V05 09/2016
Settings
Providers and PBXs
A network interface is an interface that enables a computer or a network
component access to a computer network. Setting the network interface
type allows you to operate the telephone on different networks, for example,
VLANs or VPNs.
Default network:
Default network is used.
VPN:
VPN is used.
Registrar
The registrar is the IP address or URL that you receive from your VoIP
provider for login.
Important:
Every port opening on the router is a security risk. Perform
the appropriate security measures.
Notes:
The registrar should only be disabled if the provider requires this.
No NAT Keep Alive is performed if the registrar is disabled.
An internal network is usually protected from external manipulation by,
for example, a firewall integrated in the router. Without NAT Keep Alive,
the firewall's security functions will defend you against attempted
accesses from the Internet.
That is why you may need to set up port forwarding for incoming SIP
packets in the router for the
SIP port
set up in the provider's/PBX's confi-
guration.
REGISTER requests are sent to the registrar .Additional entries must be
made:
Registrar address
