An item specifically designed to notify the user that there is an awaiting phonecall via an audible tone, bell, beep or the like. It may or may not include a display or readout to indicate the incoming number, or an autodial feature.
NSN 5960-01-029-5637
NSN 6650-01-280-1778
NSN 6685-01-345-9066
NSN 6685-00-866-1776
NSN 6685-01-466-1916
NSN 6105-01-247-8464
NSN 6240-01-200-9634
NSN 6220-00-823-6688
NSN 5925-01-440-7571
NSN 6135-01-508-3784
NSN 6220-00-073-0508
NSN 6240-01-590-1347