Bandwidth situation is worst in mobile network in peak hours for almost every country. Using G.729 you need 16/24 Kbps of Bandwidth to make a successfull and comfortable voice calls which is not available in peak hours in mobile internet (GPRS, EDGE, 3G). Concidering this situation, we have implimented AMR codec for CoolDialer which allows you to make voice calls from your mobile using only 4.98 Kbps Bandwidth. We are always committed to solve all of your issues and provide you with best solutions. Thus, now you can handle the peak hour bandwidth congession situation very easily and make your customers satisfied, more then ever.