Amazon.com Cordless calling becomes even more convenient with the IBM 900FADS cordless headset telephone, offering completely hands-free operation. Its 900 MHz transmission provides great signal clarity, and caller ID lets you know who's calling before you answer.The 900FADS features a comfortable, lightweight headset with adjustable boom microphone, belt clip for easy attachment to belt or waistband, easy-to-read three-line LCD display, hold button, last-number redial button, and a flash button for easy access to phone company services such as call waiting. The phone is tone/pulse switchable, and a tone button allows the user to switch to touch-tone service during a conversation. It has a ringer hi/low switch, headset volume control, low battery indicator, and hearing aid compatibility.Caller ID features include caller ID with call waiting, a 60-name/number call memory, LCD that displays caller's name and number, call waiting name and number, time and date of the call, total number of calls, new-call indicator, automatic callback of the displayed number, selective erasing of individual or all calls from memory, and up and down review buttons for easy access to stored call records.