yealink t20

  1. Solved Yealink T20P - STUN autoprovisioning not working

    3CXon Debian (cloud hosted) 3CX Version number: 16.0.9 Provisioning Method: STUN All Firewall ports are open (including STUN ports) We have a T29G, a T21P_E2 and some W60B/W52P hardware that works perfectly, however the T20P devices does not register over STUN. I have tried all versions of...
    • carmen.leroux
    • Thread
    • stun stun provisioning yealink yealink t20
    • Replies: 4
    • Forum: Yealink
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