NEC SL2100 Quick Install Manual page 28

Configure the SL2100
Edit the Ring Group members
To edit the members of the Ring Group, make sure the Properties Pane is in view.
If you do not see the Properties Pane, then enable it from the ribbon.
As you click on each trunk line in each mode it will cycle through different Ring Groups 1~4 and then Voice Mail.
You can also change the properties for each trunk by clicking on the trunk icon
Some settings you may change are CallerID and the Clear Signal timer.
Quick Install Guide – SL2100 with Analogue Trunks rev 1.1
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