If you’re contacting the same people with marketing voicemails and emails, you shouldn’t repeat information verbatim. By mixing up your approach, you make it more likely to get a response to at least one method. Also, your voicemails should be more personalized than your emails. For example, you could send an email to a contact – and 500 others – asking for feedback about a specific product they recently bought.
If you can, try to keep your message 20 to 30 seconds long — max. This is the sweet spot for sharing just enough information without going overboard, potentially getting cut off by the recipient’s voice mailbox system, or having the listener hang up early because your message was simply too long. Speak clearly, avoid rambling, and get straight to the point.

3. To permanently delete the message, click on the trashcan icon, either found below the voicemail details or at the top right-hand corner.
Think about if you were someone working in the corporate world, what kind of voicemail would you like to receive, and try to keep that image in mind when leaving a voicemail.