5. Hit “Record” on Audacity. Then, on your phone, play the voicemail you’d like to record. When your message is done, stop recording. If you want to get really fancy, you can use Audacity to chop off any dead air at the start or end of your recording.
13. “Hello, you’ve reached the [Department name] at [your company]. We can’t take your call right now, but please leave your name, contact information, and the reason for reaching out. One of our team members will be in touch within the day. To ensure we don’t miss you again, you can also let us know the best time to call you back. Thanks and have a great day.” This greeting lets your caller know your Customer Service team is just as efficient as you are.Voicemail greetings for calls received after business hours

I want to use a downloaded custom MP3 file as my custom greeting. Is there a way to transfer it into the file or do I have to just re-record it by hitting record while the MP3 file plays off of another device?
It doesn’t matter what you save to your phone, computer or tablet — everything you keep on your devices should be considered private unless you give someone else permission to look through your files, images and apps.