callboy

noun6

1. •
   A boy or man who summons actors when their presence is required for a performance.
2. •
   (euphemistic) A male prostitute.
3. •
   A youth employed to wake people up for work.

   • It was exciting being a callboy, riding a pushbike in all directions in Fremantle City, waking-up the engine-crews for work. — 2010
4. •
   (old-fashioned) A bellhop.
5. •
   (humorous) A man who works as a call center agent. (see usage notes)
6. •
   (Philippines, slang) A public transport barker (a man who, for a fee, calls out the destination of jeepneys and buses)