Voice mail is a critical feature in any and all business enterprises. Much more frequently the option is voice mail versus the ability to text the person you are trying to reach, or for them to text you if it is a business situation. We use Ooma for our land lines, Verizon for our iPhone 6, and a Virtual Receptionist to answer our business number "live" 24-7-365, they then text and email us the caller's contact information - works very well!