diff --git a/ggsn_tests/GTP_CodecPort.ttcn b/ggsn_tests/GTP_CodecPort.ttcn
index 561e5b9b0..7a3e755d6 100644
--- a/ggsn_tests/GTP_CodecPort.ttcn
+++ b/ggsn_tests/GTP_CodecPort.ttcn
@@ -29,10 +29,12 @@ module GTP_CodecPort {
 	type port GTPC_PT message {
 		out	Gtp1cUnitdata;
 		in	Gtp1cUnitdata,
+			ASP_ConnId_ReadyToRelease,
 			ASP_Event;
 	} with { extension "user IPL4asp_PT
 		out(Gtp1cUnitdata -> ASP_SendTo: function(f_enc_Gtp1cUD))
 		in(ASP_RecvFrom -> Gtp1cUnitdata: function(f_dec_Gtp1cUD);
+		   ASP_ConnId_ReadyToRelease -> ASP_ConnId_ReadyToRelease: simple;
 		   ASP_Event -> ASP_Event: simple)" }
 
 	private function f_enc_Gtp1cUD(in Gtp1cUnitdata in_ud, out ASP_SendTo out_ud) {
@@ -55,10 +57,12 @@ module GTP_CodecPort {
 	type port GTPU_PT message {
 		out	Gtp1uUnitdata;
 		in	Gtp1uUnitdata,
+			ASP_ConnId_ReadyToRelease,
 			ASP_Event;
 	} with { extension "user IPL4asp_PT
 		out(Gtp1uUnitdata -> ASP_SendTo: function(f_enc_Gtp1uUD))
 		in(ASP_RecvFrom -> Gtp1uUnitdata: function(f_dec_Gtp1uUD);
+		   ASP_ConnId_ReadyToRelease -> ASP_ConnId_ReadyToRelease: simple;
 		   ASP_Event -> ASP_Event: simple)" }
 
 	function f_enc_Gtp1uUD(in Gtp1uUnitdata in_ud, out ASP_SendTo out_ud) {
diff --git a/gprs_gb/NS_CodecPort.ttcn b/gprs_gb/NS_CodecPort.ttcn
index e33354686..29f8aa5ac 100644
--- a/gprs_gb/NS_CodecPort.ttcn
+++ b/gprs_gb/NS_CodecPort.ttcn
@@ -51,10 +51,12 @@ module NS_CodecPort {
 	type port NS_CODEC_PT message {
 		out	NS_Send;
 		in	NS_RecvFrom,
+			ASP_ConnId_ReadyToRelease,
 			ASP_Event;
 	} with { extension "user IPL4asp_PT
 		out(NS_Send -> ASP_Send: function(NS_to_IPL4_Send))
 		in(ASP_RecvFrom -> NS_RecvFrom: function(IPL4_to_NS_RecvFrom);
+		   ASP_ConnId_ReadyToRelease -> ASP_ConnId_ReadyToRelease: simple;
 		   ASP_Event -> ASP_Event: simple)"
 	}
 }
diff --git a/library/GSMTAP_PortType.ttcn b/library/GSMTAP_PortType.ttcn
index 69074df58..a3f655dc5 100644
--- a/library/GSMTAP_PortType.ttcn
+++ b/library/GSMTAP_PortType.ttcn
@@ -67,10 +67,12 @@ module GSMTAP_PortType {
 		out GSMTAP_SendTo
 		in GSMTAP_RecvFrom
 		in ASP_Event
+		in ASP_ConnId_ReadyToRelease
 	} with { extension "user IPL4asp_PT
 		out(GSMTAP_Send -> ASP_Send: function(GSMTAP_to_IPL4_Send);
 		    GSMTAP_SendTo -> ASP_SendTo: function(GSMTAP_to_IPL4_SendTo))
 		in(ASP_RecvFrom -> GSMTAP_RecvFrom: function(IPL4_to_GSMTAP);
+		   ASP_ConnId_ReadyToRelease -> ASP_ConnId_ReadyToRelease: simple;
 		   ASP_Event -> ASP_Event: simple)" }
 
 }