Hi. I'm Kerry McCall. Many of my clients call me "The Phone Voice". Daily, I'm recording and producing the phone recordings, mesages and greetings used by businesses and networks nationwide. There's a good chance you've already heard my voice, and I'd like to have the opportunity to help you quickly get the greetings you need.
From the Skype for Business desktop app (if you are running Click-2-Run build C2R 8201.1002 or later), select Set Up Voice Mail. Change your Call Answering Rules You can change what options your callers have when they reach the voicemail service; get disconnected, hear your greeting, record a message, choose to be transferred to the number or user you select. Change your prompt language This is the prompt language that is played to callers. For list of supported languages, see Languages for voicemail greetings and messages from Skype for Business. Configure your Out of Office greeting This is the customized greeting message that is played to callers when your status is Out of Office. This option can be activated "Always," when you have an active "Auto Reply" in Outlook, or whenever you have an out-of-office calendar appointment.  Where you can get your voicemail messages from

-(Very long pause) Wait! Please don’t hang up! I want to hear what you have to say.
Do keep in mind that anything out of the ordinary, or too long will eventually grate on the person listening. My sister recorded a message similar to the one on the film Terminator, where the message says "Hello" and then pauses so that the person on the other end thinks that they are talking to a real person, before revealing that it was a trick.