diff --git a/bsc/BSC_Tests.ttcn b/bsc/BSC_Tests.ttcn
index b9182e3..31b733f 100644
--- a/bsc/BSC_Tests.ttcn
+++ b/bsc/BSC_Tests.ttcn
@@ -4342,30 +4342,30 @@
 			dtx_u := ?,
 			spd_ind := RSL_SPDI_SPEECH,
 			ch_rate_type := -,
-			coding_alg_rate := -
+			u := { speech := - }
 		}
 	}
 
 	select (a_elem.codecType) {
 	case (GSM_FR) {
 		mode_ie.chan_mode.ch_rate_type := RSL_CHRT_TCH_F;
-		mode_ie.chan_mode.coding_alg_rate := RSL_CMOD_SP_GSM1;
+		mode_ie.chan_mode.u.speech := RSL_CMOD_SP_GSM1;
 	}
 	case (GSM_HR) {
 		mode_ie.chan_mode.ch_rate_type := RSL_CHRT_TCH_H;
-		mode_ie.chan_mode.coding_alg_rate := RSL_CMOD_SP_GSM1;
+		mode_ie.chan_mode.u.speech := RSL_CMOD_SP_GSM1;
 	}
 	case (GSM_EFR) {
 		mode_ie.chan_mode.ch_rate_type := RSL_CHRT_TCH_F;
-		mode_ie.chan_mode.coding_alg_rate := RSL_CMOD_SP_GSM2;
+		mode_ie.chan_mode.u.speech := RSL_CMOD_SP_GSM2;
 	}
 	case (FR_AMR) {
 		mode_ie.chan_mode.ch_rate_type := RSL_CHRT_TCH_F;
-		mode_ie.chan_mode.coding_alg_rate := RSL_CMOD_SP_GSM3;
+		mode_ie.chan_mode.u.speech := RSL_CMOD_SP_GSM3;
 	}
 	case (HR_AMR) {
 		mode_ie.chan_mode.ch_rate_type := RSL_CHRT_TCH_H;
-		mode_ie.chan_mode.coding_alg_rate := RSL_CMOD_SP_GSM3;
+		mode_ie.chan_mode.u.speech := RSL_CMOD_SP_GSM3;
 	}
 	}
 	return mode_ie;