Sorry to confuse you. I mean the “Handover Command” message at Layer 3 is not initiated. This is INTER BSC, INTER MSC and INTER LAC at the same time. The Cell has immediate neighbors. The HO is triggered only on its INTRA BSC/MSC neighbors but when you cross to borders no handover command despite the difference in Rx lev is very obvious (like 30dBm). All CELL/BSC/MSC definitions wer check but all are correctly defined. SI5 contains all the BCCH of the neighbors both internal and external. No interference / hardware problem on its external neighbor base on kpi. Please help..Thanks.