diff --git a/102232-5/IPMultimediaPDU.asn b/102232-5/IPMultimediaPDU.asn
index 67e9fbebee0fb3f1c0936b8c98ad9964bca047b5..d70768d6e317678923593920530fc57507fff441 100644
--- a/102232-5/IPMultimediaPDU.asn
+++ b/102232-5/IPMultimediaPDU.asn
@@ -4,7 +4,7 @@
 
 
 IPMultimediaPDU 
-{itu-t(0) identified-organization(4) etsi(0) securityDomain(2) lawfulIntercept(2) li-ps(5) iPMultimedia(5) version12(12)}
+{itu-t(0) identified-organization(4) etsi(0) securityDomain(2) lawfulIntercept(2) li-ps(5) iPMultimedia(5) version13(13)}
 
 DEFINITIONS IMPLICIT TAGS ::=
 BEGIN
@@ -22,8 +22,8 @@ IMPORTS
 -- Object Identifier Definition
 -- ============================
 
-iPMMIRIObjId RELATIVE-OID			::= {li-ps(5) iPMultimedia(5) version12(12) iRI(1)}
-iPMMCCObjId RELATIVE-OID			::= {li-ps(5) iPMultimedia(5) version12(12) cC(2)}
+iPMMIRIObjId RELATIVE-OID			::= {li-ps(5) iPMultimedia(5) version13(13) iRI(1)}
+iPMMCCObjId RELATIVE-OID			::= {li-ps(5) iPMultimedia(5) version13(13) cC(2)}
 	-- both definitions relative to: 
 	-- {itu-t(0) identified-organization(4) etsi(0) securityDomain(2) lawfulIntercept(2)}
 
@@ -107,9 +107,11 @@ IPIRIContents ::= CHOICE
 	originalIPMMMessage			[0] OCTET STRING,
 		-- Copy of the IP MM signalling packet including the original IP and UDP/TCP headers
 	sIPMessage					[1] SIPMessage,
-		-- Copy of the SIP content and the source and destination IP address
+		-- Copy of the SIP content and the source and destination IP address  of the intercepted
+        -- SIP message as transmitted on the network layer (see clause 5.2.7).
 	h323Message					[2] H323Message,
-		-- Copy of the H.323 content and the source and destination IP address
+		-- Copy of the H.323 content and the source and destination IP address of the intercepted
+        -- H.323 message as transmitted on the network layer (see clause 5.2.7).
 	...,
 	nationalIPMMIRIParameters	[3] NationalIPMMIRIParameters,
 		-- This parameter is used according to national regulations
@@ -120,8 +122,9 @@ IPIRIContents ::= CHOICE
 		-- Copy of the IP MM signalling packet including the original IP and UDP/TCP headers
 		-- see clause 5.2.6.
 	iRIOnlySIPMessage			[6] SIPMessage
-		-- Copy of the SIP content and the source and destination IP address
-		-- see clause 5.2.6.
+		-- Copy of the SIP content and the source and destination IP address of the intercepted
+		-- SIP message as transmitted on the network layer.
+		-- (see clause 5.2.6 and 5.2.7).
 }
 
 SIPMessage ::= SEQUENCE
diff --git a/102232-5/portal/IPMultimediaPDU,ver12.txt b/102232-5/portal/IPMultimediaPDU,ver13.txt
similarity index 93%
rename from 102232-5/portal/IPMultimediaPDU,ver12.txt
rename to 102232-5/portal/IPMultimediaPDU,ver13.txt
index 67e9fbebee0fb3f1c0936b8c98ad9964bca047b5..d70768d6e317678923593920530fc57507fff441 100644
--- a/102232-5/portal/IPMultimediaPDU,ver12.txt
+++ b/102232-5/portal/IPMultimediaPDU,ver13.txt
@@ -4,7 +4,7 @@
 
 
 IPMultimediaPDU 
-{itu-t(0) identified-organization(4) etsi(0) securityDomain(2) lawfulIntercept(2) li-ps(5) iPMultimedia(5) version12(12)}
+{itu-t(0) identified-organization(4) etsi(0) securityDomain(2) lawfulIntercept(2) li-ps(5) iPMultimedia(5) version13(13)}
 
 DEFINITIONS IMPLICIT TAGS ::=
 BEGIN
@@ -22,8 +22,8 @@ IMPORTS
 -- Object Identifier Definition
 -- ============================
 
-iPMMIRIObjId RELATIVE-OID			::= {li-ps(5) iPMultimedia(5) version12(12) iRI(1)}
-iPMMCCObjId RELATIVE-OID			::= {li-ps(5) iPMultimedia(5) version12(12) cC(2)}
+iPMMIRIObjId RELATIVE-OID			::= {li-ps(5) iPMultimedia(5) version13(13) iRI(1)}
+iPMMCCObjId RELATIVE-OID			::= {li-ps(5) iPMultimedia(5) version13(13) cC(2)}
 	-- both definitions relative to: 
 	-- {itu-t(0) identified-organization(4) etsi(0) securityDomain(2) lawfulIntercept(2)}
 
@@ -107,9 +107,11 @@ IPIRIContents ::= CHOICE
 	originalIPMMMessage			[0] OCTET STRING,
 		-- Copy of the IP MM signalling packet including the original IP and UDP/TCP headers
 	sIPMessage					[1] SIPMessage,
-		-- Copy of the SIP content and the source and destination IP address
+		-- Copy of the SIP content and the source and destination IP address  of the intercepted
+        -- SIP message as transmitted on the network layer (see clause 5.2.7).
 	h323Message					[2] H323Message,
-		-- Copy of the H.323 content and the source and destination IP address
+		-- Copy of the H.323 content and the source and destination IP address of the intercepted
+        -- H.323 message as transmitted on the network layer (see clause 5.2.7).
 	...,
 	nationalIPMMIRIParameters	[3] NationalIPMMIRIParameters,
 		-- This parameter is used according to national regulations
@@ -120,8 +122,9 @@ IPIRIContents ::= CHOICE
 		-- Copy of the IP MM signalling packet including the original IP and UDP/TCP headers
 		-- see clause 5.2.6.
 	iRIOnlySIPMessage			[6] SIPMessage
-		-- Copy of the SIP content and the source and destination IP address
-		-- see clause 5.2.6.
+		-- Copy of the SIP content and the source and destination IP address of the intercepted
+		-- SIP message as transmitted on the network layer.
+		-- (see clause 5.2.6 and 5.2.7).
 }
 
 SIPMessage ::= SEQUENCE