Play an audio clip onto an ongoing call

Is it possible to modify an active call by 开发者_如何学运维overlaying a sound track during the call? I looked up the SDK, but couldn't find any API to do this in the documentation.

I am trying to investigate the feasibility of playing a previously recorded call/audio clip onto an ongoing call.

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Is it possible to modify an active call by overlaying a sound track during the call?

No, sorry, there is no API to access the in-call audio stream.