Bert I have had VOIP for a year now using cisco 7940s and our own IP and I love it POE not necessary but with one you don’t need individual power supplies and those hassles. We kept our land lines for the fax machines but we may convert to virtual fax in the future.
The biggest benefit has been a savings. It costs less than half the monthly costs of our old wired system and we get three outside lines per phone and we have 25 phones so we have the equivalent of 75 lines over 12 lines wired. We currently have three remote offices and some of our practitioners have them at home. I really enjoy being able to transfer a call or a message directly to their house. Because of our security systems it takes a little configuring to take one off-site but those phones can be moved anywhere in the world and it's like it's in the next office. By the way these phones only use 16kbs each.
