bellcaptain

As a noun doorman is

a man who holds open the door at the entrance to a building, summons taxicabs, and provides an element of security; in apartment buildings, he also accepts deliveries and may perform certain concierge type services.

As a noun bellman is

a town crier.

Bellcaptain is likely misspelled.

Bellcaptain has no English definition.

As a noun bellboy

is a male worker, usually at a hotel, who carries luggage and runs errands.