Hello everyone In one of the ML I have read that, BCCH-SDCCH-BCCH-TCH is required for listen to the TCH. In my case(Test N/w) I receive an IMM ASS, go to (SDCCH/4 + SACCH/4) TS:0 subchannel 2. As soon as I find an ASS_CMD I send a l1ctl_tx_dm_est_req with new channel parameters and jump to a TCH/F+SACCH/F+FACCH/F TS 4. I am receiving bursts after this. They contain SACCH SI5/6 as I see them in Wireshark and also some bursts (I hope a mix of FACCH and TCH). Is it necessary to do BCCH again. If I don't do Won't I receive TCH frames.? Will the be good TCH frames. ? But I see the tch_schedule_set working good. I receive once UL and next DL bursts. and sometimes SACCH. Can someone explain me. Thank You Altaf -- View this message in context: http://baseband-devel.722152.n3.nabble.com/Moving-to-TCH-without-doing-a-BCC... Sent from the baseband-devel mailing list archive at Nabble.com.