No I am not utterly compelled to answer the phone! If whoever it is really wants to speak to me,they will try again! Funnily enough,my sone rang from interstate this morning and after we said our farewells,I went to use the loo.as soon as I sat down,the phone rang again.There was NO way I could stop what I was doing just to answer the phone!!!!!! It turned out to be my son again,and sure enough,in a few more minutes he RANG AGAIN!!!!
I keep my mobile in my bag on the back seat when I am driving and have no trouble at all ignoring it until I have reached my destination.
The exception would be the work 'phone since it would be inapproriate not to answer that when it rang. But if I was mid converstaion with someone, it wouldn't bother me to let it go to voicemail, which I have permanently set.