The feature was discovered in WhatsApp's beta version 2.25.7.3 for Android, following an APK teardown. When an incoming video call is received, users will see a "Turn off your video" option. Selecting this option allows the call to proceed in voice-only mode, and users can choose to enable the camera during the call if desired.
This enhancement aligns WhatsApp with other video-conferencing platforms like Google Meet and Microsoft Teams, which offer similar functionalities. While the feature is currently being tested, there is no official release date for its public rollout