wifi calling not working in A51

[SK1955]

I tried connecting M11 with A51's Hotspot wifi calling working in M11

When tried connecting A51 with M11's Hotspot wifi calling is not working in A51. I have no idea why is this happening.

I contacted airtel also. They said wifi calling is enabled in your handset. 

Wifi calling settings is turned on all the time.

Please help.

[NITISH29]

Wi-Fi Calling lets you make and receive voice and video calls over a Wi-Fi connection instead of using your cellular connection. If you have a Wi-Fi connection and are in an area where voice service is weak or unavailable, use Wi-Fi calling to continue making voice calls.

[SK1955]

I know wifi calling means but its not working

[Samsung_Support3]

Dear Samsung Member,

Greetings from Samsung Customer Support!

Please perform the below mentioned steps to resolve the issue:

* Forget the Network: Go to apps screen >Settings >Connections > Wi-Fi >Wi-Fi network >Tap and hold the Wi-Fi network that you're having trouble with until the menu allows you to select Forget Network.

For further assistance, register your concern in Samsung Members Application (Open Samsung Members Application > Get help > Send Feedback > Error report/Ask questions).

Thank you for writing to Samsung.

Warm Regards,
Samsung Customer Support