Owner`s manual

98
Incoming Ringing
By associating lines with individual stations, you can have lines
ringing different stations in Day and Night modes.
For example, in DAY mode, all calls on line1 might ring all
phones, but in NIGHT mode all calls on line 1 might be set to
only ring station 20.
Also, in both DAY & NIGHT modes, all calls on IP Trunk (VoIP)
might be set to ring on station 23 only.
To change the settings, select ON or OFF from the relevant
drop down box for the Line/Station configuration you require.
The default is that ALL lines ring ALL wired stations and the first
four cordless phones in both Day and Night Modes.