Telephone dating etiquette
At a meeting or meal, if you answer a call, you're basically telling the person you're meeting with that someone else is more deserving of your time than they are, says Pachter.
If you are expecting an important phone call during your meeting and there's no way you can reschedule it, then make sure to let the person you're meeting with know ahead of time.
Where once someone would make dozens of calls in a day, we now find the medium to be intrusive and tedious.
Ironic, considering that we're rarely more than a yard from them.
And, it’s part of good business etiquette and office courtesy.