Calls are now much more reliable:
• Calls stay connected when you switch apps or lock your phone — no more dropped audio or getting stuck
on "Reconnecting."
• New in-call audio picker — switch between speaker, earpiece, Bluetooth, and wired headphones.
• Tap "Return to call" to jump back into an ongoing call from anywhere in the app.
• Faster, steadier connections, plus fixes to ringing, missed calls, and group calls.