set up elastix, transfer the call to my cell, but, the sound is chopped. when use my voip account to call my cell directly, the sound is good. is there any configuration i need to do to make a decent sound? what is the minimum system requirement for elastix? is that problem caused by a out of date hardware? when there is call,i checked the CPU USAGE and memory, 3% and 40% respectively. or there is something else to resolve this? thanks.