Grandstream Networks DP750 Administration Manual page 60

Enable LLDP Activates LLDP (Link Layer Discovery Protocol). Default is No.
Layer 2 QoS Enable VLAN
Settings
Layer 2 QoS
802.1Q/VLAN
Tag
Layer 2 QoS
802.1p Priority
Value for SIP
signaling
Layer 2 QoS
802.1p Priority
Value for RTP
media
STUN Settings Use STUN
STUN server
Number of
STUN Response
Misses Allowed
Keep-Alive
Interval
UPnP Discovery Enable UPnP
Settings discovery
UPnP discovery
notify interval
Network  Open VPN® Settings
Enables/Disables the OpenVPN® feature. Default settings is No.
OpenVPN® Enable
OpenVPN® Server
Configures the address of the OpenVPN® server.
Address
Defines the port of the OpenVPN® server. Default is 1194.
OpenVPN® Port
Enables / Disables the VLAN mode. Default is Disabled.
Sets layer 2 QoS 802.1Q/VLAN tag. Default is 0.
Sets layer 2 QoS 802.1p priority value for SIP signaling.
Default is 0.
Sets layer 2 QoS 802.1p priority value for RTP media.
Default is 0.
Enables STUN. Default is No.
Configures IP address or domain name of STUN server. Only
non-symmetric NAT routers work with STUN.
Specifies number of STUN response misses allowed before
restarting DHCP service. The minimum is 3 misses.
Sends periodically a blank UDP packet to SIP server to keep
"ping hole" on the NAT router open. Default is 20 seconds.
Enables/disables UPnP discovery feature. Default is Yes.
After enabled, if you have a PC in the same network of DP750,
you can browse it directly in your Network. Double click the
device will open its web GUI in your default browser.
Specifies in seconds the interval to send out SSDP notifies.
Default settings is 30.
DP750/DP720 Administration Guide
Version 1.0.11.4
P a g e | 60