SGSN_Tests.ttcn:MASKED SGSN_Tests control part SGSN_Tests.ttcn:MASKED TC_attach_gsup_lu_timeout testcase SGSN_Tests.ttcn:MASKED SGSN_Tests control part SGSN_Tests.ttcn:MASKED TC_attach_gsup_lu_reject testcase Tguard timeout SGSN_Tests.ttcn:MASKED SGSN_Tests control part SGSN_Tests.ttcn:MASKED TC_attach_second_attempt testcase