Humor also leaves a lot of room for misinterpretation—which subsequently weakens sincerity and authority. A caller can be very turned off by merely misinterpreting your joke. Why take this risk? Additionally, this could even cause callers to question your character. Say, for example, the president of a company’s mobile phone voicemail greeting was funny. What’s to happen if the caller didn’t like or get the joke? What if they found it offensive? Another scenario is that a caller is reaching out to you for the first time—i.e. they have no idea regarding your personality. What next? The point is, with this type of greeting, humor is bound to be more divisive so just avoid it altogether. c. Poorly Pacing Your Message and Bad Time Management: Don’t speed through your message. Speak clearly so callers know what to include in their message and when to leave the message. At the same time, don’t drag your message out. No one wants to sit through a diatribe. Just get to the point clearly.
1. Thank Them or Apologize. The basic rule of thumb is that callers should hear one of two things when they first connect with your voicemail — either an apology for not being able to answer the call or a “thank you” for having called.

Hi, you've reached Sally Smith at Example Realty. We specialize in helping you find commercial properties in Northern New Jersey. I'm unavailable to take your call, but will call you back by this time tomorrow if you leave a message with your name and telephone number. You can also email [email protected] or tweet @SallyS.
Your greeting is very important as it can be the first contact people have with you or your company. Voice mail is only impersonal if you make it that way. One way to help increase the effectiveness of voice mail is to change your greeting at least weekly if not daily.