Konftel 800 Installation & Administration page 64

SETTINGS CONFIGURATION AND MANAGEMENT
String
<enable>
<stun>
<enable>
Description
To enable ICE. ICE uses various techniques to
allow SIP-based VoIP devices to successfully
traverse the variety of firewalls that may exist
between the devices. The protocol provides a
mechanism for the endpoints to identify the most
optimal path for the media traffic to follow.
The options are the following:
• True.
• False. This is the default setting.
Terminology reference
: ICE
Web interface
: Enable ICE
Phone UI
The top line of the Simple Traversal of UDP through
the NAT (STUN) section.
STUN is a protocol to assist devices behind a NAT
firewall or router with packet routing. The protocol
allows applications operating through the NAT to
discover the presence and type of the NAT and
obtain a public IP address (NAT address) and port
number that the NAT allocates for the application
User Datagram Protocol (UDP) connections to
remote hosts. You must enable STUN if an external
SIP server cannot connect to the phone behind a
firewall NAT function and the SIP server supports
STUN.
The options are the following:
• True.
• False. This is the default setting.
Terminology reference
: STUN
Web interface
: Enable STUN
Phone UI
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