Had a customer contact me to let me know that her office is changing internet providers, and wanted to know if our phones run off voip. She stated I don't believe your older model phones were not voip, but I am not sure about your current ones. I was so confused why she thought we ever offered non voip phones. We have never offered non voip phones. How do you use phones every day, and interact with our system at work and have no idea what you are even using?