callout

noun ! Definition from Wiktionary (CC BY-SA). More about callout at Wordnik → Where our words come from →

1. An outgoing telephone call.
2. An instance of being summoned to visit a certain place in order to provide assistance; an instance of summoning someone who is on call.

   I had to pay for the callout of the plumber after the pipe burst.

3. A meeting or rally held in order to find interested participants, e.g. for an activity or sports team.

   So many people attended the basketball callout that the coach decided to form two teams.