Length – if your callers typically wait 2 minutes at a time, then at least 2 minutes of programming should be the goal. The idea is to ensure the callers don’t hear repeated messages every time they call. A typical on-hold message is 4-8 minutes in length.
It makes sense to have an after-hours / weekend voicemail greeting for important teams at your business so that your clients feel confident that they will be taken care of. You may also suggest alternate resources like a help forum, knowledge base, or online chat to support customers while closed, if available.

If you’re working remotely now, but your mobile number isn’t on your business cards, add your mobile number to your business line’s voicemail message! If you’re worried that people will start calling your cellphone at all hours of the night – they won’t. They’ll treat it just with just as much respect as your business line.
I have a confession to make: I haven’t recorded a new voicemail greeting since 2014. In the past four years, I (hopefully) have become more articulate, poised, and self-assured. But hear my voicemail recording, and you’d think I was still new to the work world, a little unsure of myself — and probably not an authority. Obviously I need toupdate it. And if you haven’t changed your voicemail greeting in over a year, you’re likely in the same boat. After all, a professional voicemail recording boosts your credibility, makes you seem more competent, and encourages whoever’s listening to it to continue the relationship. A relatively unprofessional one — like mine, for instance — does the opposite: It encourages prospects, recruiters, and potential connections to run in the other direction. With that in mind, I’ve written 18 unique voicemail greetings for every situation. Pick your favorite, practice a few times, then record your new voicemail.