Question: incoming calls are not coming in airtel?
Answer: The main reason of missed incoming calls on Airtel (or simply call drop in another way), is the network fails to put the incoming calls on VoLTE or CSFB to 2G/3G. ... This may not happen either if you have set 4G only in your device's network settings or if the Airtel's 3G or 2G network isn't available.