Pridey
In case of SDCCH Blocking,please check for the following alarms;
1.7712 WORKING SDCCH CHANNEL RATIO BELOW THRESHOLD.
2.7720 SDCCH ACTIVATION FAILURE.
3.7725 TRAFFIC CHANNEL ACTIVATION FAILURE.
4.1583 LAPD MSG DISTRIBUTION PROBLEM.
5.2720 TELECOM LINK OVERLOAD
6.7606 TRX FAULTY.
7.7746 CH CONGESTION IN CELL ABOVE DEFINED THRESHOLD.