Newegg offers the OBi100 VoIP Telephone Adapter & Voice Service Bridge for $37.99. Coupon code "EMCWPGW227" drops it to $29.99. With free shipping, that's tied with our mention from two weeks ago and the lowest total price we could find now by $8. This adapter supports Google Voice, SIP, and OBiTALK VoIP services.