Snom 190 - Manual (Page 84)

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snom technology AG • 85
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NAT detection
Administrators can select the kind of NAT according to their
network through this setting. Available options are “Automatic”, “UPnP”,
“STUN”, “Static” or “Off”. The default is “Automatic”.
STUN server (IP-addr:port)
If you selected „STUN“ as NAT detection type, specify the address
of the STUN server followed by the port number.
STUN binding interval (seconds)
Similarly, set the STUN binding interval time in seconds through
this setting.
Use Mapped Address
Through this setting you can switch on/off the mapped address
feature.
Dynamic RTP port start
If you want to set up the RTP port dynamically, give the start port
number in this setting.
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