Complete business phone system on the cloud | Take your business calls from anywhere, on any device. Line2’s business phone service lets you communicate with your prospects and customers all within the simplicity of an app no matter where you are. Professionally communicate from anywhere, anytime, from any device. Line2 works great over WiFi, 4G, and LTE so you can always switch to your best network for the most reliable connection with your prospects and customers. No traditional phone or expensive hardware needed. It’s your entire phone system in an app.