For Aastra, For American, For Amstrad, For Answer Call, For AT&T, For Audioline, For Audiovox, For BELL SOUTH, For Casio, For COBRA, For Code A Phone, For Conair, For Doro, For Elcom, For Emerson, For Extend-a-phone, For GE, For GP, For GTE, For IBM, For LG, For NORTHWESTERN BELL, For Panasonic, For Plantronics, For Radio Shack, For RCA, For Sanik, For Sanyo, For Sony, For SouthWestern Bell