I have two flutter applications. One is for the doctors other one is for the patients. App IDs of the apps are different. Now, how can I communicate through video calling from one app to another?

Solution 1: Shaocheng Yang

In order to let both apps communicate with each other, you need to use same appid on both apps and join the same channel.

Solution 2: Jigar Fumakiya

As shaocheng-yang said you need the same app-id from both sides and the same channel name to connect and start a video call.

There is a full example available on Github here
Take look at it.

Download code and change app-id just for testing purposes.