Augustine!!! First you need to correct your english. After you have done that, please walk in to the office of Divisional Enginer (Phones) of your area. You will find him very willing and ready to help you (Off course if you have a genuine complaint and a call center of your own). Not only that he will ensure that your call center phone lines are the best lines. And indeed you must pay the telephone bills intime to ensure that your telephone line is not disconnected due to non payment in future. Calling someone stupid for your own fault will not solve the problem.