Etiquette: Cell Phone Manners During Business Meetings - as part of the expert series by GeoBeats. When you are in a business setting always mind your cell phone manners. Remember to keep your phone on silent or vibrate at all times. No talking and no texting in business meetings. And if you are having lunch or dinner with a client remember, the client comes first, so keep that phone off. If you are expecting a very important telephone call let the client know ahead of time and step away from the table if you have to take that call. Remember to keep your voice low, no so yell, and stay away from those quacky ringtones. Always mind your cell phone manners and you will look like a top knots professional.