Solved Fanvil - "Line status: Timeout"

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Hi Chaps,

Further to my woes today, I've got 5 Fanvil X4U's behind a Pi.

2 of the phones have registered with 3CX.

The remaining phones are showing "Line: Timeout" and I cannot get them to register.

I've rebooted the 3CX, Pi and router again and i've factory reset the phone.

FW is 2.2.13

 

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Im not having a good day.

the phones not registering are using the proxy address of the SBC before I gave it a static, i've since changed and all is well.