A History of Phone Etiquette

With everybody arguing about mobiles and laptops in cafes and restaurants, we take a look at the etiquette debates of a century ago, when manners experts and AT&T both advised consumers not to say "hello" while talking on the phone.

Also, handsets don't appreciate facial hair.

Source:
http://arstechnica.com/tech-policy/news/2010/08/what-would-emily-post-say-about-droids-in-cafes.ars