Thanks for your reply.
1.yes. But now a days we r upgrading to 32 kbps LAPD for BCCH TRX only and for entire n/w.
2. By Signalling overload in BSC’s, do u mean Abis TRXSIG load ? If not, then pls explain once more.
If we change MAXRET from 4 to 2 and also reduce DMAX, will it help?
what are the parameters are directly related to sdblock?