1. When you are engaged in a QQ video call on your Apple iPhone and a call comes in, if you do not answer and instead hang up, the other party will not be able to hear any sounds from your end of the call.2. Similarly, the video feed will also be cut off immediately, and the other person will no longer be able to see the video content you were sharing during the call.3. The other party will see a notification on their screen, such as "The other party is busy, please call back later."4. Therefore, you can be assured that during the call, the other person on the QQ video call will not be able to hear or see any part of your incoming or ongoing phone call.