He made another call that day, impersonating another victim's tenant, "informing her that he will not be paying further rent and that he should be evicted from the address".
Defence lawyer Anna Brosnahan said Munro "doesn't really know the people involved".
Munro had mental health concerns, the court heard.
"It seems as though there is an element of boredom going on," Ms Brosnahan said.
Judge Dugald Matheson said Munro needed to "face the consequences".
"You must stop doing this, Jarred, do you understand?" he said.
Munro was sentenced last month to community work for similar charges.
Judge Matheson sentenced Munro to a further 200 hours of community work.