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 5895-01-256-4009
NSN 5990-00-140-4559
NSN 5998-01-604-2311
NSN 5905-01-490-2295
NSN 6650-00-246-3751
NSN 5998-01-154-8170
NSN 6110-01-143-3362
NSN 6650-00-419-4146
NSN 5965-01-326-0606
NSN 5985-01-038-3617
NSN 5895-00-118-3152
NSN 5996-00-577-0483