[Serusers] Waiting calls

Hi all, Is there any method to reduce the number of waiting calls? As there are more users dial concurrently to my SER, the waiting time increases to an unacceptable level sometimes (Around 5-10 seconds). I suspect this would relate to my ser.cfg since when I type "serctl ps", I got the following : 0 1521 stand-alone receiver @ 202.83.X.X:5060 1 1549 timer 2 1553 fifo server 3 0 4 0 5 0 6 0 7 0 Is the above related to the media proxy? Or any parameters in config.h would improve the situation? Any reply would be much appreciated! Best Regards, Kenny Lam SIP Application Engineer Deltapath Commerce & Technology Limited --------------------------------------- SIP By Deltapath! www.deltapath.com