That's a good idea, eliminating or decreasing the amount of "phone tag", which is agitating (to me it is, I don't like that game, tag) tell his receptionist it is important he or she returns your call, no matter what time it is. You are not obligated to divulge waht you want to say to him by the receptionist, if she tries to "screen" your call, you can tell her it is confidential as well as important.
Good replies I see here
Lots of luck with this.
Take care,
DE

((((((((((( for you ))))))))))))))))