Matrix PRASAR UCS - Page 117

108 Matrix PRASAR UCS System Manual
Router's Public IP Address
Click Router's Public IP Address to expand.
• Router's Public IP Address: This parameter is of relevance if the WAN port of the system is located
behind a NAT Router and configuration requests are to be forwarded to the public internet.
Router‘s Public IP Address is also used for web access and auto configuration of the phones. It specifies
the fixed IP Address of your NAT router required for NAT Traversal in SIP messages.
• Router’s SPARSH Port: Enter the Router’s Port mapped with the SPARSH Port of the system. This
allows auto configuration of the external VARTA clients (VARTA ADR100/ VARTA AMP100) using the
Auto Sign-In Email. If you want the VARTA clients to auto configure with the system, you must enter the
Router’s SPARSH port value as the Server Port along with the Server Address in the VARTA ADR100/
VARTA AMP100.
Valid range: 80 or any value ranging from 1025 to 65535. Default: 80.
• Router’s Secure SPARSH Port: Enter the Router’s Port mapped with the SPARSH Secure Port of the
system. This allows auto configuration of the external VARTA clients (VARTA ADR100/ VARTA AMP100)
using the Auto Sign-In Email. If you want the VARTA clients to auto configure with the system using a
secure protocol, you must enter the Router’s Secure SPARSH port value as the Server Port along with the
Server Address in the VARTA ADR100/ VARTA AMP100.
Valid range: 443 or any value ranging from 1025 to 65535. Default: 443.
• Make sure you select the Use Router/STUN’s IP Address option as the Registrar Server Address,
when you configure SIP Extensions.
• You can also use STUN as an alternative to the Router's Public IP Address as NAT Traversal
mechanism. Ask your Network Administrator about the NAT Traversal mechanism that suits best for
your voice network and program this parameter.
Simple Traversal of UDP through NATs (STUN)
Click Simple Traversal of UDP through NATs (STUN) to expand.
• Simple Traversal of UDP through NAT (STUN): This parameter is to be configured only if the WAN port
is located behind a NAT Router and SIP Messages need to be forwarded to the public internet.