Matrix PRASAR UCS System Manual 111
• VLAN ID: Consult your network administrator and configure the VLAN ID. The valid range for this is
from 0 - 4094. Default: 1.
• SIP CoS: Define the CoS (priority) bits in all SIP packets. The range of CoS bits is from 0 to 7. Default:
3.
UDP NAT Keep Alive
Click UDP NAT Keep Alive to expand.
• UDP NAT Keep Alive: This parameter is to be configured when the WAN port is connected behind a NAT
router
14
and SIP messages are transported over UDP. UDP NAT Keep Alive messages must be sent to
refresh the UDP binding in the NAT router.
• Enable UDP NAT Keep Alive: Enable this check box to send UDP NAT Keep Alive messages
periodically to refresh the binding in the NAT router. Default: Disabled.
• Interval (sec): Select Time period after which the WAN Port should send UDP NAT Keep Alive
messages. This time period should be less than the UDP Binding Timer of the router. The valid range is
001-999 seconds. Default: 180 seconds.
• Type of Message: Select the type of message type to be sent when UDP NAT Keep Alive is enabled.
Select either REGISTER or NOTIFY. Default: NOTIFY.
TCP NAT Keep Alive
Click TCP NAT Keep Alive to expand.
• TCP NAT Keep Alive: This parameter is to configured when the WAN Port is connected behind a NAT
router and SIP messages are transported over TCP. TCP NAT Keep Alive messages must be sent to
refresh the TCP binding in the NAT router.
• Enable TCP NAT Keep Alive: Enable this check box to send TCP NAT Keep Alive messages
periodically to refresh the binding in the NAT router. Default: Disabled.
14. Network Address Traversal (NAT) allows multiple hosts in the network to share the single public routable IP address. Means all the
hosts in the private network shall be identified by single public IP address in the global IP cloud.
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