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- Feb 10, 2023
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I was installing 3CXPhoneSystem18 downloaded fromHello,
What version of 3CX are you trying to install?
It sounds like you are installing a very old version that can no longer activate.
You should download the latest version from our portal and try again.
Founded in 2005, when VoIP was an emerging technology, 3CX has gone on to establish itself as a global leader in business communications.