Tell yourself how many times you would like to call him each day: morning, noon and night is probably preferred, or may be a bit much. Anyhow, set a time for each phase of the day. For instance, in the morning, you may call at 10 a.m. and noon is 12 p.m of course, and in the evening before the prime time shows and sports games, try calling at 7 p.m. These are only suggestions, but I'm only trying to give you a guide as to how you may arrange to call him at least 3 times per day. If you set times for each day and stick to them, this could help you to stop blowing up his phone. Good luck!