Telephone Book and Lists > Caller List > LED of the Message Key

LED of the Message Key
While in the idle state, the LED of the message key indicates the state of the list/s available over the message key.
If the LED signalling is disruptive or bothersome, it can be switched off.
 
The configuration can be carried out as follows:
Using COMfortel Set (Page Settings/functions > Lists, check boxes under Caller list)
Using the telephone (Menu settings > lists > caller list)

COMfortel 1600 - Firmware V2.2 - COMfortel Set V3.16 - Advanced Information V10 02/2019