C Hapter - Altigen AltiWare ACC 5.2 Administration Manual

Chapter 4: System Configuration
If you assign a feature profile (for example: 2 - Sales Group) to an extension
Important:
in Extension Configuration, and that feature profile is subsequently deleted
and a new feature profile is created that uses the same number (for
example: 2 - Marketing Group), the extension will automatically be assigned
to the new feature profile. So, it is important to note which extensions are
assigned to certain feature profiles, especially when adding new profiles or
deleting old ones.
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AltiWare ACC 5.2 Administration Manual