Administrator’s Guide for Yealink VC110 Video Conferencing Endpoint
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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.
Mark the ON radio box in the STUN Active field.
2. Enter the IP address or the domain name of the STUN server in the STUN Server field.
3. Enter the port of the STUN server in the Port field.
4. Press the Save soft key to accept the change.
To configure STUN server for SIP IP call via the remote control:
1. Select Menu->Advanced (default password: 0000) ->SIP IP Call.
2. Select STUN from the pull-down list of NAT Traversal.
3. Press the Save soft key to accept the change.
NAT Types
Full Cone:
A full cone NAT is one where all requests from the same internal IP address and port are
mapped to the same external IP address and port. Furthermore, any external host can send a
packet to the internal host, by sending a packet to the mapped external address.