The command syntax is
list measurements announcement <all, integ-all, board <board-loc> <period>
The type qualifiers are
all lists announcements regardless of type (analog, aux-trunk and integrated).
integ-all lists all active integrated announcement media modules in the order they were activated.
board lists announcements for the specified media module.
The period qualifiers are
yesterday-peak (for yesterday’s peak hour)
today-peak (for today’s peak hour)
last-hour (for today’s previous hour)