Obihai Technology OBi212 Universal Voice Adapter with Google Voice and FAX for $50 AT AMAZON

Works with Google Voice for free home phone service
Supports T.38 Fax and Bring Your Own Device SIP Services like Anveo, Callcentric, Voip.ms, etc.
Works with Up to Four(4) VoIP Services Across Two (2) Phone
https://www.amazon.com/Obihai-Tec…way&sr=8-3