My sister changed her mobile no

My one and only sister, priyadharshini, changed her mobile number. She is working in cognizant under java platform . We used to have conversion in phone for many hours a day. But she lost her mobile last week and got new number. Previously we both had conversion with free of cost. We enjoyed the new scheme of airtel introduced exclusively in their company. I feel sad that hereafter its not possible for us to hang over in phone. I do not want to change my present number since i have given this number for my reference in the company. Yet to receive their call.. So i am unable to change my card. She owns a brand new model mobile .. It costs nearly 12000. She always make fun of my mobile. My mobile has no new additional features other than attending call and messaging. Soon i will work and earn more to own a mobile containing features with more advanced technology than her model.. And i will make fun of her mobile..