AT&T 210 (2 Pack). Brand New Includes One Year Warranty.. The AT&T 210-2 trimline telephone is designed for hassle free use. This durable corded phone features a three ringer setting, tone/pulse dial and illuminated keypad. The 210 offers a 10 number memory dial which allows you to store your most important contacts. A directory card is also provided to help you keep track of all your memory dial settings... 210-2