Users often don’t invest enough time into their messages, resulting in incomplete, unprofessional, or otherwise under-whelming greetings. Sure, crafting a greeting doesn’t sound all that complicated; however, there are a number of pitfalls users can fall into—i.e. informality, terseness, sincerity, lack of direction, and more. While none of these sound too catastrophic, they are often interrelated. As such, they tend to worsen any problem. For example, humor can cause informality, worsen ambiguity, and weaken sincerity. That being said, users should strive to avoid ALL these pitfalls.
Recording company voicemail can be really simple, like speaking your new business voicemail script into an iPhone, or you can set up voicemails across your entire company at a highly professional level.

When on vacation, provide your callers with a return date and a back-up contact person to accommodate emergencies. This prevents you from potentially damaging a valued relationship while you enjoy some time off.
Obviously, I need to update it. And if you haven't changed your voicemail greeting in over a year, you're likely in the same boat.