diff --git a/bsc/BSC_Tests.ttcn b/bsc/BSC_Tests.ttcn
index 4ae90bb54..f99d4b006 100644
--- a/bsc/BSC_Tests.ttcn
+++ b/bsc/BSC_Tests.ttcn
@@ -3402,6 +3402,18 @@ testcase TC_assignment_fr_a5_3() runs on test_CT {
vc_conn.done;
f_shutdown_helper();
}
+/* Establish a Signalling channel and re-assign to TCH/F with A5/4 encryption. */
+testcase TC_assignment_fr_a5_4() runs on test_CT {
+ var MSC_ConnHdlr vc_conn;
+ var TestHdlrParams pars := f_gen_test_hdlr_pars();
+ pars.encr := valueof(t_EncrParams('10'O, f_rnd_octstring(8), f_rnd_octstring(16)));
+
+ f_init(1, true);
+ f_sleep(1.0);
+ vc_conn := f_start_handler(refers(f_tc_assignment_fr_a5), pars);
+ vc_conn.done;
+ f_shutdown_helper();
+}
/* Expect ASSIGNMENT FAIL if mandatory IE is missing */
private function f_tc_assignment_fr_a5_1_codec_missing(charstring id) runs on MSC_ConnHdlr {
@@ -8930,6 +8942,7 @@ control {
execute( TC_assignment_fr_a5_1_codec_missing() );
}
execute( TC_assignment_fr_a5_3() );
+ execute( TC_assignment_fr_a5_4() );
execute( TC_assignment_fr_a5_not_sup() );
execute( TC_ciph_mode_a5_0() );
execute( TC_ciph_mode_a5_1() );
diff --git a/bsc/expected-results.xml b/bsc/expected-results.xml
index ab1a9e405..e3a6a87ad 100644
--- a/bsc/expected-results.xml
+++ b/bsc/expected-results.xml
@@ -47,6 +47,7 @@
+