Your Grasshopper office phone system can be set up in four easy steps: 1. Pick your number and plan- choose from toll-free, vanity or local numbers. You can also port your existing number. 2. Download the Grasshopper apps to your mobile device and computer desktop. 3. Configure your setting. We'll walk you through the steps on your desktop and mobile device, so you'll quickly have Grasshopper running just how you want. 4. Put your new number to work! You’re now ready to make and receive business calls.