Say "Hello" - Introduce yourself when you make a call.

How often do you receive a call and have to ask who is calling?

It always makes me nervous, because you nowadays you just don't know if they're going to ask about your car warranty!

As a courtesy to the person we are calling, we should always identify ourselves. If it is not a friend or someone you know well, you should always start with "Hello" instead of "Hi".

This applies for business and social calls. You should even if you are calling someone within your own business.