Hi ,
           I am using ser-0.9.6 and mediaproxy-1.4.2 and the are working fine til now but when i use the sip-sip phone (or) sip - pstn in the peak hours i cant hear voice very clearly its choppy sound ,

             when i tried to call grandstream sip phone to pstn i made grandstream phone to use only g-729 but  mediaproxy is showing session in active

can any body tell me how to change mediaproxy's g-711a to some thing like g-729 or g-723 so that i can hear clear voice in peak hours too
 

                   thanks you very much

regards
ravi.