I have the N300A (and Gigaset handsets) and it's been our only home phone solution for years.

A definite advantage of using this is that it supports multiple concurrent calls, so it will record a message if you're on a call on a handset.

As it's a fully integrated VOIP capable DECT basestation it also cuts out the nasty 2 wire analogue stage when using an ATA with a normal DECT hub meaning no echo issues etc

The Voipfone voicemail by email is really convenient for me. The Gigaset base station and handsets work well too. I just replace the rechargeable batteries every 2 or 3 years. These latest ones EBL100 have lasted well.