Hi Raúl,
No, it is not possible to use the SX20 table microphone, and keep the Mute function operational, on a C40. The C40 uses a balanced XLR input which does not include any of the Mute functions, and there's no way to do it with a standard microphone.
You would need some external device to send API commands to the C40 or to replicate the IR commands for pressing the mute button on the remote.
As far as I am aware, there is nothing freely available on the market that does this out of the box.
Wayne
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Wayne
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