Don't answer it!

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.

Answering the phone is incredibly disrespectful. Learn to respect the time of the people you're in the meeting with.

[Okay, sure, if it's an emergency, fine, but announce before the meeting starts that you're expecting an emergency call. Jerk.]