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.
Who is this?! How did you get this number?! If you are a friend, trying to give us money or just want to talk, then leave a message or try my cell phone number. But you can tell me all of that in the message you leave me.

– Thanks for calling. This is (name). Today is a Friday and I am working from our corporate office. If you need to reach me immediately, please call (number). Otherwise, please leave me a message and I’ll return your call as soon as possible.
06Hi, you’ve reached the offices of [your company/name]. I will be out of the office between [dates] and [date]. You can reach me on my private cell [your number] if this is an emergency. Alternatively, you can call me when I get back to the office or leave a brief message.