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  1. Plantronics CS540 / T48S, headset button won’t hang up call properly

    I ended up installing the previous firmware for the phone and it fixed the issue. Must be a big in the latest firmware.

  2. Plantronics CS540 / T48S, headset button won’t hang up call properly

    We recently moved over our phone system from free PBX to 3CX. I had a working set up with my T48S phone and a Plantronics CS 540 headset. Once we upgraded to 3CX everything works on the headset except when I go to hang up a call from the button on the side of the headset the base clicks a few...
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