Yealink VC120 - Page 103

Configuring Network
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2. Select STUN from the pull-down list of NAT Traversal.
3. Click Confirm to accept the change.
To configure STUN for SIP IP call via web user interface:
1. Click on Account->SIP IP Call.
2. Select STUN from the pull-down list of NAT Traversal.
3. Click Confirm to accept the change.
To configure STUN server via the remote control:
1. Select Menu->Advanced (default password: 0000) ->NAT/Firewall.
2. Check the STUN Active checkbox.
3. Enter the IP address or the domain name of the STUN server in the STUN Server field.