With the Invoxia NVX 610, chances are good that people will never bother with their landline phones at home.
The Invoxia NVX 610 is a dock for smartphones that also doubles as a landline phone. This should fit most iOS devices, so don't worry too much if you don't own an iPhone. Dialing is done on the mobile when it's docked, while calls can be picked up with the receiver located on the left. The rear shows a telephone jack and several other plug-ins for convenience. There's also a conference mode that helps minimize "acoustic echo, reducing background noise and making the call cleaner" for the person on the other end, according to Blessthisstuff. The sound quality is guaranteed to be of high-definition quality thanks to In Vivo Acoustic Technology, which brings crisp, clear sounds.