The best solution would be to forward your voicemail messages to an email address. This gives you a way to download the recordings and forward them along to friends. We offer a voicemail to email service that is available with all our numbers.
https://www.universalclass.com/articles/business/customer-service-using-voice-mail-and-taking-messages.htm

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.
When recording, choose a quiet area, speak clearly, and use your full name (first and last).