This model has just a few basic functions like 20 memories, a red emergency number button, an LCD showing the dialed number (no call ID recognition) and 3 selectable true analog ring-tones.
Installation process takes 1 single non-dramatic step: connecting your RJ11 cable. No batteries to install and charge 24hrs, no firmware upgrade, no operating system settings, no help desk and no on-line manual.
That long greyish thing on the left is your handset(wired connection!). As soon as you pick it up from the hook-switch you hear the analog line buzz. Not that digital created artificial sound image from the past, just the real thing.
No answering machine, mailbox, Call ID and/or hide call ID. Just the basics needed for a phone conversation between earthlings.