Hi C., You are right, this is something that EVERYONE (adults included) are guilty of. We all want to be the center of attention. So when someone is on the phone (at the door, on the computer) it is natural and normal to want to be a part of that.
Here are some suggestions that you may want to try:
1. Have a special activity or toy for your son to have while you or hubby are on the phone. This toy/activity comes out ONLY when you are on the phone.
2. Allow him the opportunity to make his own phone calls. He can call grandma and grandpa, daddy at work, anyone, just give him the opportunity to use the phone and see that what it does and how it works. He is old enough to understand and young enough to tire of it quickly.
3. If you have call display, let him answer the phone as often as he can. Call him your "assistant" teach him to answer the phone by saying "Hello Sam speaking, who is calling please?" My girls have been doing that since they were old enough to understand. Family thinks it is cute, let thme know what you are doing so they can help teach him from the other end. They should say, "hello Sam this is grandma, how are you? (polite chit chat) then, May I speak to your mommy please?" You will have to practice this. The first few times he may not want to give up the phone, that is where the person on the other end comes in, they will have to hang up, not engage him to stay on the phone longer.
C., just like with everything we do, we need to be taught. Punishment does not work, it never has, it never will. Education, training and guidance is the only way. And YES you will tell him 10 times a day...and you will be calm about it...think about it...EVERYONE needs to be constantly reminded of EVERYTHING...just take a drive and see how many speed limit signs there are "reminding you", "training you", "guiding you" to follow the rules. Please don't expect your son to be any different.
B.
Family Wellness Coach