NTLK Tweet: NEW #features! Now you can add a Secondary Phone Number to your DUO for ONLY $1.99/month #voip #Awesome #lowcost https://twitter.com/netTALK/status/602293890381717504 i993.photobucket.com/albums/af59/toucan2010/new%20feature%20ntlk_zpshbikwq0b.png