The Philips VoIP dual phone enables you to make or take regular landline calls and free Skype internet calls from the same cordless handset. That means you can replace your traditional handset with a single Philips VoIP phone for all your Skype and regular calls. Simply switch between regular and internet calling at the push of a button any time you like. (via Voip - Internet and dual phones - Phones - Consumer Products - Philips)