Customize Call Screening Prompt

We have been long-term customers of RingCentral, and it seems we recall that we were able to customize the "Call Screening Prompt" years ago, but the feature is no longer available. We have been able to customize almost all aspects of our callers' experience except this one. We'd like to suggest that RC make it possible to upload your own custom prompt, rather than having the system-generated voice. It would make for a seamless experience!