User in call after no internet?

Description
Our implementation contains one on one video call sessions. For following 2 sessions we observed this scenario where one is dropped from the call and the other isn’t. He we know there was some issues because our custom websocket connection was dropped but user was in the call. Can you please help me understand what exactly happened and why user was still in the call even when our custom socket was disconnected due to internet issues.

Instance 1:

Session ID: E7zQ8oJVRjOk55H0lO1/PA==

Instance 2:

Session ID: v08OJu7dQuebC9AJXfQu5Q==


Additionally: If you can please let me know what is the pingTimeout of zoom websocket connection.