Articles by India Today and Business Today confirms that by pressing 1 the coronavirus advisory stops and the caller can hear the normal caller tune.
According to the articles, if a person wants to avoid the coronavirus tune, one can dial the desired number and when the coronavirus alert message beings the caller should press 1. As soon as the caller presses 1, the message will stop playing and the caller will hear the normal caller tune.
The COVID-19 pandemic has given rise to a lot of potentially dangerous misinformation. For reliable advice on COVID-19 including symptoms, prevention and available treatment, please refer to the World Health Organisation or your national healthcare authority.