Lines are getting disconnected intermediately stating session expired with the errors attached screenshot.
The call is getting disconnected while the users are on call for more than 30 minutes and then the below attached errors pop
Dialer state is changing to offline intermediately.
Session expired. Please sign in
Cannot connect to the server. Please retry later
while on call for more than 30 mins. then intermediately below error comes and lines disconnects
going to offline intermediately