i don;'t think your freind was telling you the whole truth, CIC doesn;t care where you are as long you meet the standard for PR and now he finished the test, so there shouldn;t be a problem. I am sure there's more for his story.
It's not wise to tell some strangers on the phone where the people they want to contact went.
I would say:"He/she is not home. I'm his/her XXXX. Can I take a messenge?"