diff --git a/library/RSL_Emulation.ttcn b/library/RSL_Emulation.ttcn
index 309ec13..5a0816f 100644
--- a/library/RSL_Emulation.ttcn
+++ b/library/RSL_Emulation.ttcn
@@ -372,22 +372,22 @@
 
 	while (true) {
 		alt {
-		[bts_role] IPA_PT.receive(ASP_IPA_Event:{up_down := ASP_IPA_EVENT_UP}) {
+		[bts_role] IPA_PT.receive(tr_ASP_IPA_EV(ASP_IPA_EVENT_UP)) {
 			}
-		[not bts_role] IPA_PT.receive(ASP_IPA_Event:{up_down := ASP_IPA_EVENT_UP}) -> value evt {
+		[not bts_role] IPA_PT.receive(tr_ASP_IPA_EV(ASP_IPA_EVENT_UP)) -> value evt {
 			CCHAN_PT.send(evt);
 			}
-		[bts_role] IPA_PT.receive(ASP_IPA_Event:{up_down := ASP_IPA_EVENT_DOWN}) {
+		[bts_role] IPA_PT.receive(tr_ASP_IPA_EV(ASP_IPA_EVENT_DOWN)) {
 			Misc_Helpers.f_shutdown(__BFILE__, __LINE__, fail, "Lost IPA connection!");
 
 			}
-		[not bts_role] IPA_PT.receive(ASP_IPA_Event:{up_down := ASP_IPA_EVENT_DOWN}) {
+		[not bts_role] IPA_PT.receive(tr_ASP_IPA_EV(ASP_IPA_EVENT_DOWN)) {
 			Misc_Helpers.f_shutdown(__BFILE__, __LINE__, fail, "Lost IPA connection!");
 			}
-		[bts_role] IPA_PT.receive(ASP_IPA_Event:{up_down := ASP_IPA_EVENT_ID_ACK}) {
+		[bts_role] IPA_PT.receive(tr_ASP_IPA_EV(ASP_IPA_EVENT_ID_ACK)) {
 			IPA_PT.send(ts_ASP_RSL_UD(IPAC_PROTO_RSL_TRX0,ts_RSL_PAGING_LOAD_IND(23)));
 			}
-		[not bts_role] IPA_PT.receive(ASP_IPA_Event:{up_down := ASP_IPA_EVENT_ID_ACK}) { }
+		[not bts_role] IPA_PT.receive(tr_ASP_IPA_EV(ASP_IPA_EVENT_ID_ACK)) { }
 		[bts_role] IPA_PT.receive(tr_RSL(tr_RSL_IMM_ASSIGN)) -> value rx_rsl {
 			var GsmRrMessage rr;
 			var OCT1 ra;