Instead of you making your clients and customers sit through an Interactive Voice Response (IVR menu) so they may be directed to the person they would like to talk to, try to make fewer hurdles and steps for your customers.
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.

A professional voicemail greeting should be no longer than 60 seconds. List the important information we've discussed above, provide alternative methods of communication and close with a thank you.
Make sure you visit the recording practise page where you can record your phrases and perfect them before putting them on your phone.