there are no miracle solutions… perhaps activate Half Rate and remove some SDCCH timeslots to use them as TCH.
What are the causes of HO ? PBGT ? Bad Level ?
Explain russians that HO Congestion is not a subscriber issue (not directly, anyway) 🙂 And a definite solution is to change the averaging windows… well, it’s like asking you to swim 20km, you prepare for months for that… and then… I’ll tie your feet & hands together and push you in the water.
Go now, swim…