We currently use Nextiva VoIP Call Center as our physical and softphone PBX solution. It works out great for users that are in the office that still prefer a physical phone, as well as remote users that don't have the space for one, so use a softphone instead. There's no difference in sound quality on either, but the softphone is a better cost value for small businesses and remote users. Call recording, internal calling only (ext), international calling, and call center reporting and monitoring are some of the features available for a lesser or additional cost and may require additional software and licenses packages. As an admin, the GUI software is pretty easy to use compared to its predecessor, Momentum. It uses the same Broadsoft system, but place a GUI on top that makes it a breeze to get where you need to go and easier to locate things.