Good day.
We try use free upgrade from upgrade 3cx Phone System 12 to 3cx 15.5.
Im first make backup, After i install 12.5 and restore backup. When i try backup from 12.5 to 3cx phone system 14 i can activate this, because i see error that this key for previous version and cant be used for this version. Itry upgrdae from backup 14 tho 15.5 but too cant activate.
Who have some idia?
We try use free upgrade from upgrade 3cx Phone System 12 to 3cx 15.5.
Im first make backup, After i install 12.5 and restore backup. When i try backup from 12.5 to 3cx phone system 14 i can activate this, because i see error that this key for previous version and cant be used for this version. Itry upgrdae from backup 14 tho 15.5 but too cant activate.
Who have some idia?
