Have you been thinking about upgrading the phone system at your business to a VOIP system? If so, it will help to know some of the features that you will be getting. Internal Phone Calls One of the nice benefits of having a VOIP phone system is that each phone is going to have its own extension that can be dialed from other extensions in the office. This can be seen as a huge improvement if you only have phones that can accept external calls, making internal communication using the existing phone system impossible.