What happened to old chat room and why introduce a new chat software?
Both of the old chat room sofwares where 3rd party and making changes to them were both hard and time consuming, so we now have created a custom chat software of our own to overcome those problems.
Tap the (plus) icon, then search for a contact to add. However, in i OS 12.1, you can tap additional contacts, and you do just that to add them. If they're gray, they either aren't i Message users or aren't running the required software.
Once you've selected all of the contacts you want to start a Group Face Time with, select either "Audio" or "Video" to start the group call.
If you already have a group conversation thread in the Messages app, you're halfway there. Now, the group can have i Message and non-i Message users in it, but only the ones with compatible devices and software will be able to answer the call.The options available on settings page are as below: Name colour Name colour option allows you to change your nickname's colour and will appear to others in the selected colour.A random colour is chosen by default for you when you join the chat.Block users This is the list of members you have blocked and you can unblock them from here.Face Time has been pretty much the same ever since Apple added support for cellular networks back in i OS 6 (Face Time itself was released in i OS 4), though they did add "official" support for audio-only calls in i OS 7.