Don't answer it!
Blog
Instead of being asleep at 10:44 on 6 July 2005, kitt created this:
Good lord, person, if you're in a meeting with a client, don't answer your cell phone, talk for 2 minutes, then tell your caller you're in a meeting can you talk to him later.
Just don't answer the phone in the first place.
Better yet, turn your phone to vibrate or off.