378 Matrix ETERNITY NE System Manual
• Enter the Router’s Secure SPARSH Port number if you are want to register VARTA AMP100 Application
with the server using secure protocol. The system will listen for the configuration request from the client on
this port only. Make sure you have enabled the Secure Connection with Server option in VARTA AMP100.
You must also configure the Secure SPARSH port value as the Server Port along with the Server Address
in VARTA AMP100.
Valid range: 443 or any value ranging from 1025 to 65535. Default: 443.
If you want the SARVAM UCS and VARTA AMP100 to communicate using secure protocol, make sure you
have enabled the option Enable Secure Connection with Server in the client.
When the system is set to default, the Router’s Secure SPARSH Port value will not be set to default.
You also need to select 'Router's Public IP Address' as the 'Source Port IP Address' in the 'SIP Extension
General Parameters', when you configure SIP Extensions. Refer the “VoIP Parameters”.
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 configure this parameter.
Simple Traversal of UDPs through NAT (STUN)
STUN is to be configured only if the Ethernet WAN of SARVAM UCS is located behind a NAT Router and SIP
Messages need to be forwarded to the public internet.
STUN specifies the mechanism required for NAT traversal in SIP messages. The STUN Server facilitates
traversing through most NATs, except symmetric NATs.
If your router has symmetric NAT, do not configure this parameter.
If your router as asymmetric NAT, configure the following STUN parameters:
• Click Simple Traversal of UDPs through NAT (STUN) to expand.
• In the STUN Server Address: Port,
• Enter the STUN Server Address, a maximum of 40 characters.
• Enter the Listening Port of the STUN Server in the STUN Server Port. The valid range for this field is
from 1024-65535. The default STUN Port is 03478.