BYD didn't receive a ring-back tone message after maintaining its resume.

The recruitment process is not completed, and the resume screening failed.

1. Unfinished recruitment process: Ringback tones are part of the recruitment process. The recruitment process is not completed, and the callback is not performed. You will not receive a ringback tone message.

2. Resume screening failed: If resume screening failed, you will not be able to enter the ring-back tone session and will not receive ring-back tone messages.