Nettalk Duo VOIP Telephone Service - (Certified Refurbished) Plug and play; 1 x RJ-11 port, 1 x Ethernet port; Mini USB; 3' USB to Mini A connector; 3' Ethernet cable Free calling to the US & Canada or DUO to DUO; No computer needed / No contracts / No monthly bills; Ultra-low cost international calling rates First year of service is included. $29.95 each additional year; Live US-based technical support and personalized customer service; 3-foot Ethernet cable to connect to modem or router Visual voicemail, call waiting, conference calling, conference bridge, and fax friendly