3CX Version 20 Requirements : upgrade server specs on one console

3CX Version 20 Requirements : upgrade server specs on one console

 As 3CX Version 20 approaches its release, we want to ensure that you are well-prepared for the upgrade process. Technological advancements have led to increased demands on system resources, and it's crucial to align your infrastructure with the minimum requirements for a seamless transition to 3CX Version 20.


With the imminent release of Version 20, we must inform you that the previous small server specification of 2GB RAM, including 1 CPU, will no longer be supported. In order to successfully upgrade from Version 18 to Version 20, a resource upgrade is required.


Minimum Resource Requirements for 3CX Version 20:


RAM: 4GB

CPUs: 2


Failure to meet these updated specifications will result in a failed upgrade during the preparation checks. We understand the importance of minimizing disruptions to your communication systems, and this resource upgrade is essential to ensuring a smooth transition to the latest version.

Check the 3CX article: 3CX V20 Version Upgrades - Top Reasons for Aborting


Action Required:

Please take the necessary steps to upgrade your system's resources to meet the new requirements before attempting to upgrade to 3CX Version 20. This proactive measure will save you from potential issues during the upgrade process and ensure that your communication infrastructure continues to operate optimally.


Upgrade Steps:


1) Evaluate your current system resources (RAM and CPUs).Recommended Hardware Specifications for 3CX Phone System

2) Plan and execute the resource upgrade to meet the minimum requirements.



Steps from the Telin one console






Select the new specs






Estimated downtime is 15-20 minutes


3) Once the resource upgrade is complete, proceed with the upgrade to 3CX Version 20.



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