RingCentral MVP is one of the most comprehensive virtual phone systems on the market. Offering a wide variety of features that cater to businesses of every size, the company excels in making intuitive yet handy software for anyone. From excellent call quality to great video conferencing and virtual phone system management tools, RingCentral shows its commitment to client experience. While plans prices start at $20 per month per user, the provider makes sure to offer a discount of up to 33% off the regular price for those who opt for yearly plans.