More on phone etiquette...
When you call a business you usually get a phone greeting before you can press the appropriate option. When you press the option and have to leave a message, you are usually prompted by a request for certain bits of information.
While it may come as a surprise to many callers, the business operating that phone doesn't request the information because they like to hear themselves talk. They request it because they would like to streamline their time AND yours by getting you results as quickly as possible.
So if you are asked for the spelling of your name, date of birth, or case number, LEAVE THE INFORMATION on your message. This will save you and the company lots of time.
Take date of birth for example. You call and say: "My name is Jack Jones and I need to leave a message for Tom Turner. My phone # is 555-555-5555. Thanks." This kind of voice message is extremely unhelpful. First of all, there are no details. Second of all, there are probably 50 other Jack Jones in their customer database.
The well-mannered adult is concise and specific in their details, respecting their own time and the time of others.