How to change extension length in 3CX

Here’s a short one on how to change the length of your extensions in 3CX after the initial install.
Please note that this is not recommended and should be tested and of course take a backup of your database first!.

To change the extension length go to “settings” –> Advanced –> choose the “custom parameter tab” and look for the value called :  “ENL” , change the value field to the desired length and you’re done!

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