By default, a new 8x8 Contact Center tenant includes a set of default pre-recorded placeholder audio files. These files provide examples of voice Channel greetings and messages used in a variety of contact center contexts.
When you upload the customized audio files required by your contact center and before you can place your 8x8 Contact Center in production, you must go to Home > Audio Files to replace the 8x8 Contact Center placeholder audio files with your own production-quality audio files. Any time you upload an audio file to 8x8 Configuration Manager, you must verify that the embedded audio player can play the file. Playing an uploaded audio file verifies that 8x8 Contact Center has finished deploying the uploaded file to your contact center tenant. Audio files must be deployed before they can be referenced in an IVR script. You must verify the deployment of an uploaded audio file before referencing the file in an IVR script.
For details on IVR scripts, refer to Create a Phone IVR Script.