We’re all familiar with this type of voicemail greeting. Simply put, a caller reaches you by dialing your number or extension directly. For an optimal personal voicemail greeting, be clear about who you are, the team you’re on, and when the caller can expect a callback. Unlike company and department voicemail greetings, you may not be able to configure a greeting for open and closed business hours. If that’s the case, use a general voicemail greeting that accommodates both scenarios.
This script is very informative for motivated sellers. However, I do not have the years of experience you mentioned in the beginning. Still worth a try because I can tweak it.

answering machine. noun. an electronic device that is attached to a telephone and that automatically answers callers with a prerecorded message and records their messages for later playback. Nearby words. Origin of answering machine. Also called telephone answering machine.
Hi, this is Ed. I'm secretly replacing Jane and Bob with dark sparkling Folger's Crystals. Leave your name, number, and a brief message and they'll call you back when they're nice and percolated. See if you can tell the difference.