I am Debashish Chakraborty mob no [protected] from Taluka UMRED Distt: NAGPUR (mah) 441204. I am feeling problem in voice calling since the network here is very feeble and fluctuating since long. I would have stopped your services by throwing the Sim but I got this special number and it's with me since long so I am still keeping it despite problem in network. PL solve it or I will be forced to throw it out. My email is [protected]@gmail.com Hope you will do the needful and take my problem seriously. Your earliest reply will be highly appreciated. Thanking you, Sincerely yours D. Chakraborty [protected]