Found 2 items, similar to mail call.
English → English (WordNet) Definition: mail call mail call n : a call of names of those receiving mail
English → English (gcide) Definition: mail call mail call \mail call\ n. A call of the names of those persons receiving mail for the purpose of transmitting mail to them; -- a technique used in the military services to deliver mail to enlisted personnel. [WordNet 1.5 +PJC]