go on site, perform a drive test trace
can you select/reselect the cell ?
what are the values of C1 & C2 ?
when you set up a call what happens ?
when you send SMS ?
please list down the message flow (layer 3)
what is the sdcch assignment failure rate ?
sdcch drop rate ?
tch normal assignment failure rate ?
call drop rate ?
tch duration average ?
sdcch duration average ?