Dear AAK,Pix;
we are facing the same problem and this what i called phone RACH, AAK you are coorect the MS didn’t respond to the SABM and goes into loop and begin RACH request again so i want to ask you AAK if you face high SDCCH blocking rate because this phenomena affect the SDCCH pool, i was thinking that this problem is related to location update but i face one case without increasing in LU, after investigation the problem is in mobile hand set but i’m not sure from that because we cann’t prove it,
please AAK i want to ask you if your network is 2G/3G net. or 2G only and if 2G only you are making any rooming on 3G net.