If you're running a business, you would do well to set up Verified Calls with Google. It basically registers your phone number so that anyone using a smartphone will see your company profile and logo appear when the call comes in. Since the vast majority of people reject unknown callers, having this appear on their screen drastically increases the chances of them picking up.
Follow this guide on the Google website to set it up:
Once set up, anyone with a smartphone will see your company details appear instead of just a random phone number. This can also be applied to mobile numbers too.