https://en.wiktionary.org/wiki/call_the_ball
(US) When landing on a US aircraft carrier: to sight the lights from the multi-colored optical landing system that shows a pilot to be on the correct approach path or how to correct the approach path.
https://www.urbandictionary.com/define.php?term=call%20the%20ball
Commit to a course of action; make a final decision about a course of action. Derived from U.S. Navy terminology for a naval aviator confirming he has the optical landing aids in sight prior to landing on an aircraft carrier.