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non- numeric, this number can be used to replace the echo test
text. This allows dialing a number to perform an echo voice test.
This function is provided to test whether communication through
the server.
Echo Test Text
Echo test text
Refresh Time
Expiration time of IAX2 server registration. Allowed values are
between 60 and 3600 seconds.
Enable Registration
Enable/Disable IAX2 registration.
Enable G.729AB
Enable/Disable G.729 codec.
8.3.3.3 STUN Config
STUN support is configured in this page.
STUN – Simple Traversal of UDP through NAT – A STUN server allows a phone in a private
network to know its public IP and port as well as the type of NAT being used. The phone can
then use this information to register itself to a SIP server so that it can make and receive calls
while in a private network.