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  1. Solved Phone not provisioned behind SBC

    Thank you. In my case unchecking the option "Enable PCI compliance SSL/SecureSIP Transport and Ciphers (This will leave only TLSv1.2 enabled and may prevent old legacy phones and old 3CX Apps to connect remotely to your system)" in the security page, does the trick.

  2. Solved Phone not provisioned behind SBC

    Hi, @kieferschild SBC is installed on Qnap dedicated linux virtual machine, version 16.2.24 SBC has no outbound limitations The phones and the SBC are on the same LAN The switch device is a meraki MS120-8LP with no special rule defined Yealink T28P 2.73.0.60 Firewall test passed should I close...

  3. Solved Phone not provisioned behind SBC

    HI, I hope you can help me with this problem: I have a 3cx hosted PBX and a local SBC. Behind my SBC I have two yealink phones with recommended firmware, i see them on my gui with IP "local_phone_IP:5059 via SBC local_SBC_IP:5060" but if I factory reset the phones and assign to an ext with...
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