Since there is no user guide, either on line or in the box, for the Ooma handsets (or for the main unit, for that matter), it's a bit difficult to guess what these settings on the handset actually do. Can someone explain please? I'd rather not guess and have unintended effects on my callers.
Screen if Ring
It's Call Screening /On/OFF or it changes to "Screen if ring on". I guess the last option screens calls on that handset only if its ringer is enabled.
Any idea what Show User /On/Off is about?