The film is just over 15 minutes long and was made for Northwestern Bell but, of course, it was the same for all of the Bell companies.

Northwestern Bell in War by Ray-Bell Films, Inc. https://archive.org/details/6221_Northwestern_Bell_in_War_01_27_34_24

Wishing you a pleasant Memorial Day, and thank you to all who serve our country, past or present, military or civilian.