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Reply To: Call Drop on SD channel


Problem indication:drop due to bad quality
. Interference-co-or adjacent interference
downtilt interferer cell or cells

Problem indication-Drop due to other reason
since there is no urgent conations but the call is dropped its hard to find the reason
. Generally drops due to other reason indicate a non RF problem

.transmission problems
.dTRU or dRU hardware problem
.wrong definition of call in MSC BSC
.Wrong LAC definition in MSC