This Siemens A385 twin telephone includes the handy feature of a 140 name and number memory to help you find that number through the touch of a button. This phone also includes a 25 minute answer machine to ensure you always get the message and caller ID so you know who is phoning. These twin phones can provide up to 25 hours of talk time and 210 hour standby time. These cordless phones allow flexibility as they have an outdoor range of up to 300m and indoor range of 50m.