Jio VoLTE work but Airtel VoLTE not working solution

Why do some phones which support Jio's VoLTE don't support Airtel's VoLTE ?

Your Device is 4G enabled, you get the 4g sim. Sim is working but when you calling someone that time phone switch to 2G or 3G network. This is because of 4G only & not VoLTE network condition.

What is VoLTE ?

Ans: VoLTE means "Voice over LTE network". In 'VoLTE' calls & sms go over LTE network.

How ?

Just add a IMS apn in smartphone connection settings.

Go to main settings of your Device. Go to connection & APN SETTINGS. add a new APN with following details:

APN name : ims

APN type   :  ims

Save the apn at is. 

Reboot smartphone & wait/check 

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