When upgrading from a landline phone system to a flexible, future-proofed, and feature-rich VoIP phone system (a.k.a. cloud phone system), a key question you need to answer is: “What business phone equipment should we select?” At Carolina Digital Phone, for many years we have recommended — and continue to strongly recommend — Yealink digital phones. That's because Yealink designs them to work with all kinds of business phone systems. That way, you are not locked into one business phone service provider....