PLANET VIP-2020PT - Manual (Page 68)

Enterprise HD PoE IP Phone
VIP-2020PT
Account Input User IAX2 register account name.
Password Input User IAX2 register password.
Phone Number
Input User assigned phone number (usually it is same User’re User
IAX2 account name).
Local Port Set User local sport, the default is 4569.
Voice Mail Number Specify the voice mail’s number.
Voice Mail Text Specify the voice mail’s name.
Echo Test Number
Set echo test number. If IAX2 server supports echo test, and echo
test number is non- numeric, system could set an echo test number
to replace the echo test text. So user can dial the numeric number
to test echo voice test. This function is provided with server to
make endpoint to test whether endpoint could talk through server
normally.
Echo Test Text Specify echo test text’s name.
Refresh Time
Set expire time of IAX2 server register, User can set it between 60
and 3600 seconds.
Enable Registration Start to register the IAX2 server or not by selecting it or not.
Enable G.729AB Enable or disable code G.729 by selecting it or not.
8.3.3.3 STUN
In this web page, Users can config SIP STUN.
STUN: By STUN server, the phone in private network could know the type of NAT and the NAT
mapping IP 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.