How to answer incoming calls
Incoming phone calls will be routed to the phone number you have in the system and ring on that phone. This can be either a Cellular Phone or a Landline.
Best Practices
When you set up your Twilio number, make sure to grab the number from the setup screen shown in the image to the left and create a contact in your phone for it. You might even label it as "Business Call" so when it rings through, you know what you are getting.
Also, make sure to check the "Pass called number as caller id" setting so it actually sends the number to you.