Answer: Chances are it will work with your VoIP provider but it is not guaranteed to do so. VoIP is digitalized voice and the RE-1 and RE-2 are designed to use analog voice carriers and even provide their own line/ring voltage.
If you have any further questions regarding the Linear RE-2 Residential Telephone Entry System please give us a call at 1-800-803-8093 and we'll be more than happy to provide you with an answer.