Additional features, settings, or issues not covered by specific Microsoft Teams categories
Hello Ss1415,
I totally understand you concerns and requirement. However, I have searched many documents and didn’t find any method to upload a pre-recorded voicemail. It is highly recommended to submit your feedback in the Microsoft Teams UserVoice forum. It’s a good place for customers to share their ideas and requirements. Microsoft always pays high values on customer’s feedback.
Your understanding and cooperation would be highly appreciated.
Regards,
Rick