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41-001343-01 Rev 02, Release 3.2.2
Configuring STUN and TURN Servers Using the Aastra Web UI
Use the following procedure to configure STUN and TURN servers in your network using the
Aastra Web UI..
Note:
The NAT IP configuration parameter takes precedence
over the STUN and TURN parameters.
Aastra Web UI
1
Click on
Advanced Settings->Network->Advanced Network Settings
.
Configure STUN on the IP Phone
2
In the “
STUN Server
” field, enter the IP address and/or qualified domain name of the STUN server in
your network. You can enter up to 2 values separated by a comma. The first value is the primary and
the second value is the backup. For example:
10.50.103.12, stunbackup.aastra.com.
The STUN configuration is only used for media (RTP traffic) that goes through the server - not for
signaling. (For signaling, you need to enable Rport if the NAT device does not recognized SIP).
The STUN configuration applies globally to each phone.
If you configure both STUN and TURN on the phone, it discovers what type of NAT device is between
the phone and the public network. If the NAT device is full cone, restricted cone, or port restricted
cone, the phone uses STUN. If the NAT device is symmetric, the phone uses TURN. If you configure
STUN only, the phone uses STUN without the NAT discovery process.
Notes
:
1.
The NAT IP configuration parameter takes precedence over the STUN parameters.
2.
STUN does not work if the NAT device is symmetric.
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