Mail Call (bugle call)
Encyclopedia
Mail Call is a bugle call
which signals personnel to assemble for the distribution of mail.
Bugle call
A bugle call is a short tune, originating as a military signal announcing scheduled and certain non-scheduled events on a military installation, battlefield, or ship. Historically, bugles, drums, and other loud musical instruments were used for clear communication in the noise and confusion of a...
which signals personnel to assemble for the distribution of mail.