I thought I'd done plenty of research to replace the office answerphone (a tape, pre-digital model) but apparantly not enough.
The phone does not ring loud enough to be heard a room away.
The mute button is in a stupid place and has to be held down - the previous phone you just toggled it.
Incoming messages are too quiet - you have to bend over the phone to hear what they've said.
None of the buttons have sensible engravings - a couple of weeks later the handbook is still beside it on the desk to work out how it works.
When there are messages, the only indication is that a red light flashes. The message counter on the panel says 00 even when there are 5 or 6 messages waiting.
Worst of all, it picks up after 4 rings, maximum. Since the phone cannot be heard from one room away, it nearly always picks up, and then does not say how many calls it has intercepted.
I would not recommend it, and am now in the market for another corded answerphone with a proper and loud ringtone, sensibly engraved buttons, a 6-ring pick-up, and loud playback. I'm not holding my breath. Not all "advanced" technologies are better.