It’s a virtual phone that connects your landline to your Wi-Fi, making it available via an app. All incoming landline calls will ring on both your landline and your mobile. Take landline calls on the go with Voice Bridge.
Telcos moving to fiber their customers are also moving their POTS to VoIP, although most customers don't realize because they setup a gateway to the old analog phone circuit in the house, so nothing seems to have changed.
But the reality is that there's a in your LAN a subnet for VoIP to which you can configure any SIP complying phone or soft phone and will work with your old POTS subscriber number (most Telcos allow ten simultaneous conversations with the same subscriber number)... and from here you can do all you want with your "landline" number (yes, and hackers too...).
Be advised of if you don't have a secured WAN Node (Router) and WIFI, you could easily be the target of "nasty" VoIP hackers that will sell your VoIP by minutes to Call Shops for Inmmigrants or even worse... If you leave your LAN unsecured, don't blame anyone else for a huge phone bill or the storming-in of the Anti-Terrorist Police because you "belong" to an ISIS (Islamic State) cell.
In Europe check your broadband, you probably are already on VoIP... you don't really need the hardware.
That's cool. Though at approx £75 is a touch expensive when I don't receive many calls on my landline. At £20 would give it a try. Would ditch my landline but for the fact my broadband/TV package would cost more without landline.
Mysuper.fan