Works very well.

Ive been using Line 2 for a couple of years now for business. The service is very reliable. Sound is clearer than my regular phone. I also use the Windows desktop app with a wireless headset and a toll-free number. Had some issues with Windows 10 but they have since resolved them. Customer service responds quickly to enquiries too.

Drolebe about Line2 - Second Phone Number, v9.5.4