Can TriNET HN100 and TriVOX VN100 use one phone number line?
Yes. Multiple phone and computers can communicate with each other on one phone number within the premise simultaneously. However, an outgoing or incoming call still has a limit due to only one phone number line. You can either be on phone talking to the outside caller, or connected to the Internet with a dial-up connection, but not simultaneously. If you are using DSL for your Internet connection, then you can have incoming and outgoing voice calls simultaneously. With DSL the TriVOX VN100 network functions can be used with outside voice calls while computers are using the Internet.