Dan Pražák The latest iOS 12.1.4 which Apple Issued to the public less than two weeks ago, although he is repairing a serious one a security flaw in FaceTime, but does not return group calls to their full original functionality. When two users are on a call, it is currently not possible to add another participant.
To make a group call in iOS 12.1.4, you need to use either the FaceTime application directly or start the call through a group conversation in iMessage. Adding another participant during a two-person call is currently not possible. The "Add person" button is gray and non-functional. For some users, the button does not work even during group calls. In order to add another participant, he must end the current call and start a new one.
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Engineers at Apple have solved a critical bug in FaceTime in a rather tricky way. Instead of addressing the root of the problem, they just disabled the feature that made it possible to eavesdrop on other users through FaceTime without their knowledge. When starting a call and then adding your own number as an additional party, the called party could be heard before he even answered the call.
According to information from a foreign server MacRumors Apple Support is aware of the issue, but does not currently know when the button functionality will be restored. It seems most likely that Apple will return the feature with the arrival of the sharp version of iOS 12.2, which is currently in the beta testing phase.
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