FaceTime API for sign language interpretation app devs

Hello,

I'm having a very hard time finding where any documentation or session or any WWDC related announcement related to the FaceTime API that was mentioned in this press release last month.

https://www.apple.com/newsroom/2026/05/apple-unveils-new-accessibility-features-and-updates-with-apple-intelligence/

"For sign language interpretation app developers, a new API supports users in adding a human interpreter to an ongoing FaceTime video call."

Can anyone please point me in the right direction? I have searched everywhere in Developer.app, documentation released during this WWDC, and here in the Forums and have yet to find anything.

FaceTime API for sign language interpretation app devs
 
 
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