AT&T 1718 Digital Operation answering system has xcellent sound quality, 19 Minutes of digital recording time, Time/Day Stamp, Message Guard, Memory for power failures, and Remote access with toll saver. This phone also features Memory monitor, Voice prompts, and audible message alert. att 1718 With the AT&T 1718, you can simplify and take control of your telephone life. You decide whether to interrupt your work to answer an incoming call. Use a wide range of features such as the audible message alert, call screening, the time and date stamp, message counter, and memory protection. You can access your messages away from home using touch-tone controls. Other benefits include variable-speed playback, voice prompts, an announce-only feature, and a memo function. The 1718 records up to 19 minutes of messages. The 1718 can announce the number accompanying a message if you have a subscription to caller ID service; however, the 1718 does not have a caller ID display.