I just hate it when I phone a business and get put on hold before I get a chance to speak. If you are too busy to speak to a caller, it's better to use your answering machine. Try to avoid putting your callers on hold. Always have a pen and paper handy to jot down numbers or messages. If taking a message for someone else, write it down and then read it back to the person who called to be sure you got it right.
Some numbers sound very similar so enunciate the numbers slowly and clearly.
Be sure to write down the full name.