Matrix SETU VGFX Quick Start Manual page 77

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VGFX sends CR-LF (Carriage Return - Line Feed) message as TCP NAT Keep
Alive message to refresh the TCP binding. TCP NAT Keep Alive settings can be
done as follows:
• Enable TCP NAT Keep Alive?: Select 'Yes' to enable SETU VGFX to send
Keep Alive messages periodically to refresh the binding in the NAT router.
Valid options: Yes/ No
Default = No
• Interval: Select the time period after which the SETU VGFX should send
keep alive messages. This time period should be less than the TCP binding
timer of the router.
Valid range = 0001 to 9999 seconds
Default = 120 seconds
• Router's Public IP Address: Program public IP address of the router in this
field if 'Source Port IP Address' is set to 'Use Router's Public IP Address' in SIP
parameters.
Maximum Length = 15 characters
Valid range = 000 to 255
Default = Blank.
• STUN: Program STUN parameters if SETU VGFX is located behind the NAT
router.
• Server Address: Enter STUN server address in this field.
Maximum Length = 40 characters
All ASCII characters allowed
Default = Blank
• Server Port: Enter STUN Server's listening port in this field.
Valid range = From 1024 to 65535
Default = 3478
• Use SIP Port fetched using STUN? This parameter is applicable only when
'Source Port IP Address' is set to 'Use IP Address fetched using STUN'.
Valid options = Yes/ No
Default = No
• Quality of Service (Layer 3): Select SIP Diffserve/ToS and RTP Diffserve/ToS.
• SIP Diffserve/ToS: Program SIP Diffserve/ToS for SIP signaling. If SIP QoS
is selected, SETU VGFX will send all SIP messages using SIP QOS setting.
Valid range = 00 to 63
Matrix SETU VGFX Quick Start 71