callboard

call·board

 (kôl′bôrd′)
n.
A bulletin board backstage in a theater for posting instructions and notices.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

callboard

(ˈkɔːlˌbɔːd)
n
a notice board listing opportunities for performers
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
References in periodicals archive ?
Callboard ad rates for American Theatre are as follows: $5.00 per word.
The first time Robinson saw her name on the callboard for the next day's rehearsal of Revelations, she couldn't sleep, she said.
A date was picked, we had a location, and the notices went to every theater's callboard on and off Broadway.
Her work has appeared in Callboard magazine, and she starred in the film Heart of the Possible.
On Melrose Place: Callboard Theatre (8451), 852-9205.
This department has also been called Via the Grapevine, Tempo!, Callboard, Dance Datelines, News Cues and Hullabaloos, and, since the early 1960s, Presstime News.