A person employed to carry luggage and other loads, especially in a hotel. The bellman quickly took our bags to our room upon our arrival at the hotel.
A town crier, historically a person who made public announcements in the streets. In the old days, the bellman would walk through the village ringing a bell to gather people for important announcements.
A man stationed on a church or city tower who rang the bells at night to mark the hours or give warnings (historical, chiefly Britain). At curfew the bellman tolled the great bell to signal that the city gates would soon close.