Ciao, sì esistono e funzionano bene, hanno l'inconveniente pesante del costo però...

http://cerca.teju.it%3BCX:Teju%2520%252E%253A%252E%2520Se arch%3BL:http://cerca.teju.it/img/title.png%3BLH:50%3BLC:%230000ff%3BVLC:%23663399%3 BGFNT:%230000ff%3BGIMP:%230000ff%3BDIV:%23336699%3 B&cx=partner-pub-6068298954009469:3w68g5-6oij&adkw=AELymgXWIE42PQbLBIqYyl5oT1iN06qA2gzVDQpb FIhjmmUW06uWAeZ_w-uke2sbIQ2BgvwS99vFmA11O4MvVCb_aACwfS4puLuei3Xa8PTJ LOJdxj4cdW8&oe=ISO-8859-1&sa=X&oi=spell&resnum=0&ct=result&cd=1&q=telefono +voip+wireless&spell=1]Da Google[/URL]