No mobile company ever said me to recharge your number or incoming calls will be stopped.. but Airtel did. I use to have post paid Airtel number they use to charge too high and also stop its incoming outgoing services for no reason! Same Im witnessing with people around me using Airtel postpaid number. It just says it has network everywhere, but it doesnt even work in my own area, which is a prime location of Kalyan. It also says fastest network.. well I have used all company Sims.. and definitely Airtel is not the best... It is good but its not best at speed. Vodafone beats Airtel at speed . As per my experience.