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- Jan 29, 2026
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Is there a way to downgrade from PRO to the 4sc basic free edition for on-prem installation? I just need a very basic on-prem installation for our test bench. I downloaded the Pro version over a month because that was thinly one that was available for on-prem installation. Now that it has been more than 30 days the installation is expired and the only option I have is to downgrade to the 3cx basic option for $300 a year. Like I mentioned I just need an instance for testing purposes. This installation doers not even have to make outbound calls, just need to have an instance going to test networking configuration and to see if IP phones will communicate back to the server. I would rather not have to go through the entire process of creating a new user and such, but if that's the only option then o be it. I just need to know the easiest way to get a "free" version on the software that can be installed on-prem. Thank you for your time, help and suggestions.