Call up and Set in motion

Call up verb - Get or try to get into communication (with someone) by telephone.

Set in motion and call up are semantically related in movement topic. In some cases you can use "Set in motion" instead a verb "Call up", when it comes to topics like convert for military use, start a function.

Set in motion verb - Get going; give impetus to.

Call up and set in motion are semantically related in movement topic. Sometimes you can use "Call up" instead a verb phrase "Set in motion", if it concerns topics such as convert for military use, start a function.