Basic functionality like calling is broken with the new samsung update.

[Vaibhav2912]

I have been constantly facing issues with the calls on my galaxy m30s device where calls are disconnected abruptly. I am not even able to call another person as calling screen gets stuck. Not able to pick up calls. Not able to use wifi calling as the person on other hand always gets echo. Please resolve this asap as it is causing troubles. 

[Anonymous]

Try clearing the cache of your phone.If found helpful accept as solution

[Vaibhav2912]

Tried but not working.

[GalaxyA51user]

Restart the phone ?

[Vaibhav2912]

Tried..
It works after restart but after sometime this issue starts again.....

[Ashwinash]

Which network?

[Vaibhav2912]

Jio an vodafone

[Ashwinash]

Switch off the volt for Vodafone bro then try . .

[Vaibhav2912]

Tried these different combinations, but issue is still the same.
This was working fine before the recent patch update.

[Ashwinash]

Maybe you're right wait for next update bro. Did tried 3g ?