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dagar dagar1935 at hotmail.co.ukhello, when reading gsm spec online i have understood that on an MT call the BTS pages the phone on the RR paging channel(PCH) the phone then asks for a channel in the RR channel request (RACH) the BTS replies with RR immediate assignment(AGCH) etc etc Now I have tried to see a live example of this using osmocom-bb layer1/mobile + gsmtap/wirehshark However I cannot figure out or see anywhere in these logs the *RR channel request (RACH) packet*. Does GSMTAP or OsmocomBB actually capture the RR channel request or am I missing something here?? the logs I get are like this (CCCH) (RR) Paging Request Type 1 (CCCH) (RR) Paging Request Type 1 (CCCH) (RR) Paging Request Type 1 (CCCH) (RR) Paging Request Type 1 (CCCH) (RR) Paging Request Type 1 (CCCH) (RR) Paging Request Type 1 (CCCH) (RR) Paging Request Type 1 (CCCH) (RR) Paging Request Type 1 (CCCH) (RR) Paging Request Type 1 (CCCH) (RR) System Information Type 1 (CCCH) (RR) System Information Type 2 (CCCH) (RR) System Information Type 3 (CCCH) (SS) (CCCH) (RR) Paging Request Type 1 (CCCH) (RR) Paging Request Type 1 (CCCH) (RR) Paging Request Type 1 (CCCH) (RR) Immediate Assignment and so on Thanks! -- View this message in context: http://baseband-devel.722152.n3.nabble.com/Channel-Request-Info-RACH-GSMTAP-Wireshark-tp4026112.html Sent from the baseband-devel mailing list archive at Nabble.com.