These license are used to set what range of features the IP Office system supports.

Basic Edition :
The system requires this license to run in IP Office Basic Edition mode. Until entered, the system shows unlicensed on phone displays.

This license enables embedded voicemail with up to 2 simultaneous connections and 15 hours of storage.

 

Essential Edition Additional Voicemail Ports :  
This license enables two additional embedded voicemail connections and an additional 5 hours of storage. Multiple licenses can be added for a maximum of up to 6 connections and 25 hours storage.