Apple issued a statement today apologizing for the recent FaceTime eavesdropping bug. At the same time, Apple said it has fixed the group FaceTime security vulnerability on the server side and will release software updates next week, completely fix the problem and re-open the group FaceTime function. This means that the group FaceTime feature of the iOS 12.1 to iOS 12.1.3 system will be permanently blocked.
If users need to use Group FaceTime, users must upgrade their iPhone, iPad or iPod touch to iOS 12.1.4. iOS 12.1.4 may be released next week.
After the FaceTime eavesdropping bug, Apple responded quickly and blocked the group FaceTime function within a few hours. At the same time, the iOS 12.2 beta you are testing may also release a new version next week to fix FaceTime eavesdropping bugs. The group FaceTime was launched last October and is the main feature of iOS 12.1.