First: Wow! This is my first post with the new system and I am very impressed with the options! Hooray for bells and whistles.
I work in regional theatres in the US, and this is fairly representative for the regional theatres where I've worked (mostly in Southern California).
For an 8pm curtain of "A Christmas Carol," for example:
7:20pm - Fight Call/Dance Call/make the cast sing one or two group numbers for vocals/mic levels when applicable
7:30pm - Call half hour (
"half hour, this is half hour, the house is opening") door to door, in person, confirming that everyone is present.
- Give house to house manager via walkie talkie
Erin to house management, the house is yours7:35pm - Contact understudies if need be.....
7:44pm - Call 15 minutes to places via PA system to backstage and all dressing rooms
"Ladies and gentlement of A Christmas Carol, fifteen minutes to places please, this is your fifteen minute call, fifteen minutes to places"7:54pm - Call 5 minutes to places via PA system
"Ladies and gentlemen of A Christmas Carol, five minutes to places please, this is your five minute call, fiv3e minutes to places"7:55pm - Box office checks in with house manager, via walkie talkie, number of tickets still to be picked up
- Check in with house manager, confirm that we are at five minutes,
"Erin to house managment. I am at five. How does it look out there?"House manager rings for five in lobby. House manager continues to run all announcements in the lobby.
7:58pm - If house does not need to hold, call places to backstage (at this point i am in the booth or calling area)
"Ladies and gentlemen of A Christmas Carol, this your places call, places for the top of the show please, places for the top"Warn top of show
"Places have been called, while we wait for the house this is your warning for sound 3 through 5, lights 2 through 20, curtain out on the rail (cue light), trap open (cue light) actors on cue lights, and of course turn on the appropriate cue lights.
Those warned respond:
"Sound"
"Lights"
"Rail"
"Deck"
"Trap"
ASM/Deck stage manager checks that everyone is ready on deck
"Places stage left" "Places stage right" House manager closes house
"The house is closed"
"Thank you, i am starting" Ok, i have the house and i have places.
Sound 3 and lights 2 GO House lights fade to half as recorded preshow announcment plays, telling people to turn off cell phones, unwrap candy, find nearest exit, and not record any part of the show.
Sound 4 GOOverture starts playing
and the rest of the show continues. I expect anyone on headset to respond to warns (so that i know s/he heard and is standing by) unless situationally unable to respond.
If it is an especially large or slow cast, i may cal places as early as five minutes to curtain.
And regarding organizational structure, i usually work in system with:
PSM - Production Stage Manager
Runs the SM department for the theatre. Interviews and hires rest of SM staff, decides show assignments. Supervises all other stage managers, PAs and interns.
SM - Stage Manager
runs rehearsals and calls the show. Generates rehearsal and production calendars, schedules, daily calls, contact lists, and generates and deciminates daily notes for all production departments and management.
schedules costume fittings, recording sessions, anything else that might be concurrent with rehearsal
Makes sure that all union rules are obeyed, particularly with regards to hours and breaks.
ASM -Assistant Stage Manager
runs the deck during performances, takes responsibility in rehearsals for all prop/costume/scenery concerns
supervises PAs, interns, and deck crew (in non union houses)
PA- Production assistant
functions like an assistant stage manager, but paid less.
Often will be on book/giving lines in rehearsal, and then function as deck crew once the show moves to the stage.
SM intern
does whatever SM duties need to be done

Line notes, being on book, making copies, keeping a master script current, managing and distributing new pages, all that fun stuff.