diff --git a/bsc/MSC_ConnectionHandler.ttcn b/bsc/MSC_ConnectionHandler.ttcn
index 40701d6..8091d8d 100644
--- a/bsc/MSC_ConnectionHandler.ttcn
+++ b/bsc/MSC_ConnectionHandler.ttcn
@@ -526,6 +526,7 @@
 	TestHdlrEncrParams encr optional,
 	TestHdlrParamsLcls lcls,
 	TestHdlrParamsHandover handover optional,
+	uint5_t 	exp_ms_power_level,
 	boolean		aoip,
 	boolean		use_osmux
 };
@@ -551,6 +552,7 @@
 		adjust_cx_exp := true
 	},
 	handover := omit,
+	exp_ms_power_level := 7, /* calculated from osmo-bsc.cfg "ms max power" */
 	aoip := true,
 	use_osmux := false
 }
@@ -739,6 +741,7 @@
 private function f_check_chan_act(AssignmentState st, RSL_Message chan_act) runs on MSC_ConnHdlr {
 	var RSL_IE_Body encr_info;
 	var RSL_IE_Body ms_power_param;
+	var RSL_IE_Body ms_power;
 
 	if (ispresent(g_pars.encr) and g_pars.encr.enc_alg != '01'O) {
 		if (not f_rsl_find_ie(chan_act, RSL_IE_ENCR_INFO, encr_info)) {
@@ -763,6 +766,14 @@
 		Misc_Helpers.f_shutdown(__BFILE__, __LINE__, fail, "IE MS Power Parameters not found in CHAN ACT");
 	}
 
+	if (not f_rsl_find_ie(chan_act, RSL_IE_MS_POWER, ms_power)) {
+		Misc_Helpers.f_shutdown(__BFILE__, __LINE__, fail, "IE MS Power not found in CHAN ACT");
+	} else {
+		if (not match(ms_power.ms_power, tr_RSL_IE_MS_Power(g_pars.exp_ms_power_level, false))) {
+			Misc_Helpers.f_shutdown(__BFILE__, __LINE__, fail, "Wrong MS Power IE in CHAN ACT");
+		}
+	}
+
 }
 
 altstep as_assignment(inout AssignmentState st) runs on MSC_ConnHdlr {