Brooks' post is a clear example of etiquette vs. elegance in our fast moving world.
These women were certainly old enough to know proper etiquette. I am positive they would tell you about wearing white gloves to church and never wearing white shoes after labor day and the importance of hand written thank-you cards, which fork or spoon to use, etc, etc, etc.. But these women couldn't figure out the simplest idea that there are people around you that have as much a right to a quiet conversation with their table mates as you have to answer you phone and talk with your friend.
Plus, what is it with people? They have a normal voice when talking to the person beside them but when they answer the phone their voice turns into an overactive 4 year old's? Etiquette is rules, elegance is behavior.