It can even call other phone numbers and activate beepers when messages have been recorded. Click for test of new KX-TVS50 .
Voice quality is superb.
Number of ports indicates the number of simultaneous conversations that can be handled, including callers from the outside, as well as your own staff or family leaving messages and checking messages inside. If you want the system to provide automated attendant service as well as voice mail, you will need more ports than if it provides voice mail only. You will probably use voice processing more than you expect, so pick a system that has growth capacity. We don't know of anyone who regretted getting a bigger system than they thought they needed, but many people have quickly regretted buying a system that was too small. These products work best with Panasonic phone systems, but can also be used with other manufacturers' systems, if the control unit can work with ordinary single-line phones.