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and port of SIP. The phone might register itself to SIP server with global IP and port to realize the device
both calling and being called in private network.
STUN
Field name
explanation
STUN NAT Transverse
Shows STUN NAT Transverse estimation, true means STUN can
penetrate NAT, while False means not.
STUN Server Addr
Set your SIP STUN Server IP address
STUN Server Port
Set your SIP STUN Server Port
STUN Effect Time
Set STUN Effective Time. If NAT server finds that a NAT mapping
is idle after time out, it will release the mapping and the system need
send a STUN packet to keep the mapping effective and alive.
Local SIP Port
Set the SIP port.
Choose line to set info about SIP, There are 2 lines to choose. You can switch by
【
Load
】
button.
Use Stun
Enable/Disable SIP STUN.