Thankfully… Here is a solution. If you want to remove the corona caller tune. Type Pre- RBT (Corona Caller Tune) * Airtel – * 646 * 224 #, BSNL – UNSUB 56700 (SMS), IDEA – STOP 155223 (SMS), VODAFONE – CANCT 144 (SMS), JIO – STOP 155223 (SMS). Everyone use this to deactivate ..