Using your cell phone to record a voicemail message isn't always easy. Between remembering what to say and getting the right timing, it's tricky. But your phone does have a playback option, and it's easy to listen to and review your message. For some people, though, cutting off the end of a message is a funny way to trick people and catch them off guard. In most situations, callers won't know it's intentional and will think you're far less than tech savvy. Definitely not an impression I'd want to make.
A professional voicemail greeting is a recorded message that welcomes callers to your business when no one is available to pick up the call. For a polished call experience, the greeting should reflect who the client is calling – whether a general business number, department, team, or individual – and when the customer can expect the call to be returned.

The above eight rules of engagement for voicemail greetings may sound easy enough, but they’ll require some practice to get just right. Let’s look at some examples to provide some context in how to apply the rules to various types of greetings and situations.
Website: https://grasshopper.com/blog/perfect-voicemail-greetings-10-tips-for-recording-effective-and-professional-messages-plus-examples/