Newegg offers the Obihai VoIP Telephone / Fax Adapter, model no. OBi200, for $46.81. Coupon code "EMCKKNV68" cuts the price to $29.99. With free shipping, that's tied with our September mention as the best price we've seen. (It's also a current low by $16.) This adapter facilitates real-time fax over IP and supports Google Voice, SIP, and OBiTALK VoIP services.
Also available is the Obihai VoIP Telephone Adapter with 2-Port Router, model no. OBi202, for $62.99. Coupon code "EMCKKNV86" drops the price to $49.99. With free shipping, that's tied with our mention from April as the best price we've seen without rebate hassles. (It's also a current low by $13.) It features similar specifications as the above model, while adding a 2-port router.