An interesting thing observed during DT:
A cell having all Layers 4G/3G/2G.
CSFB happen normally on the cell.
If you lock the mobile on 2G, call not connected to this cell.
We are on the main Lobe of the cell.
2G Coverage also not showing on this specific cell, 3G/4G it showing normally.
Physical audit has been done, no abnormally showing.
In Stats it showing nearly zero Traffic.
Neighbor cells having high traffic due to this issue.
Paramters audit has been done.
What could be the posible reason?