How to change the default User Extensions range of MyPBX?

On the Menu bar of MyPBX, select  

[fusion_highlight color=”” rounded=”no” class=”” id=””]Internal Settings[/fusion_highlight] ->”
[fusion_highlight color=”#dd3333″ rounded=”no” class=”” id=””]Options[/fusion_highlight]”. In the “Extension Preferences” section, you can define the User Extensions. range as you like.