Symptom
When attempting to update the External Voicemail Greeting for a particular user in Admin Console, you encounter the error Failed at saving external voicemail greeting. The greeting does not save.
Other users' voicemail greetings can be set without error
Applies To
Admin Console
Users
Voicemail settings
Resolution
Please Create a Case with 8x8 Support.
8x8 Technical Support will review the user's configuration logs for the cause of the error.