I like to say my phone number very early so the person can hear it again quickly by starting the message over and does not have to listen to your entire message again to hear the number. But do repeat your telephone number at the end of the message at least once and speak very s-l-o-w-l-y so the person can write it down as they listen. If you don't get a response to your first voicemail, don't hesitate to record a similar message once a week for two or three weeks. This sounds a bit excessive, but my experience has been that if there is even the slightest chance of meeting someone now or even in the near future, this kind of message will get their attention.
The following voicemail greeting examples range from the brief and simple to the more detailed. You should choose the one that best suits your job and responsibilities as well as your personality. Before recording your message, you should also make sure to adhere to the basic elements of good voicemail greetings. basic elements of good

Many 18- to 34-year-olds feel that way. But step inside the office, and the old rules still apply. There's no escaping the beep.
Hi! John’s answering machine is broken. This is his refrigerator. Please speak very slowly, and I’ll stick your message to myself with one of these magnets.