Accton Technology SIP Gateway VG3300 Series - Manual (Page 29)

After configuring the parameters of STUN, please act Warm-Restart.
Configuration
WEB Page: ADVANCED\STUN
You can enable and disable the service on WEB page.
The STUN refresh time defines how long the device will send a binding request packet with discard
flag on to STUN server. A binding packet with discard flag off will be sent each time when the
number of binding request packet with discard flag on reach the Rebinding counts. The binding
request packet is used to let the STUN server keep the most fresh client information.
26