diff --git a/33128/r17/TS33128Payloads.asn b/33128/r17/TS33128Payloads.asn
index 743002f983ff7904fcb1bb804c142b6f25870193..b23b52912637d2c8a9e26a8a5b44bb77b0c74160 100644
--- a/33128/r17/TS33128Payloads.asn
+++ b/33128/r17/TS33128Payloads.asn
@@ -58,7 +58,7 @@ XIRIEvent ::= CHOICE
 
     -- tag 16 is reserved because there is no equivalent mDFCellSiteReport in XIRIEvent
 
-    -- MMS-related events, see clause 7.4.2
+    -- MMS-related events, see clause 7.4.2 see also MMSConverted events ([133-134] below)
     mMSSend                                             [17] MMSSend,
     mMSSendByNonLocalTarget                             [18] MMSSendByNonLocalTarget,
     mMSNotification                                     [19] MMSNotification,
@@ -195,7 +195,11 @@ XIRIEvent ::= CHOICE
     -- Tags 113 to 131 are not used in this version of the specification
 
     -- AMF events, see 6.2.2.2.9, continued from tag 111
-    aMFUEConfigurationUpdate                            [132] AMFUEConfigurationUpdate
+    aMFUEConfigurationUpdate                            [132] AMFUEConfigurationUpdate,
+
+    -- MMS-related events continued from choice 35
+    mMSConvertedFromEmail                               [133] MMSConvertedFromEmail,
+    mMSConvertedToEmail                                 [134] MMSConvertedToEmail
 }
 
 -- ==============
@@ -248,7 +252,7 @@ IRIEvent ::= CHOICE
     -- MDF-related events, see clause 7.3.2
     mDFCellSiteReport                                   [16] MDFCellSiteReport,
 
-    -- MMS-related events, see clause 7.4.2
+    -- MMS-related events, see clause 7.4.2 see also MMSConverted events ([133-134] below)
     mMSSend                                             [17] MMSSend,
     mMSSendByNonLocalTarget                             [18] MMSSendByNonLocalTarget,
     mMSNotification                                     [19] MMSNotification,
@@ -384,7 +388,11 @@ IRIEvent ::= CHOICE
     -- Tags 113 to 131 are not used in this version of the specification
 
     -- AMF events, see 6.2.2.3, continued from tag 111
-    aMFUEConfigurationUpdate                            [132] AMFUEConfigurationUpdate
+    aMFUEConfigurationUpdate                            [132] AMFUEConfigurationUpdate,
+
+    -- MMS-related events continued from choice 35
+    mMSConvertedFromEmail                               [133] MMSConvertedFromEmail,
+    mMSConvertedToEmail                                 [134] MMSConvertedToEmail
 }
 
 IRITargetIdentifier ::= SEQUENCE
@@ -2905,6 +2913,45 @@ MMBoxDescription ::= SEQUENCE
     contentType              [19] UTF8String OPTIONAL
 }
 
+MMSConvertedFromEmail ::= SEQUENCE
+{
+    version             [1]  MMSVersion,
+    transactionID       [2]  UTF8String,
+    terminatingMMSParty [3]  SEQUENCE OF MMSParty,
+    contentType         [4]  MMSContentType,
+    originatingMMSParty [5]  MMSParty,
+    messageClass        [6]  MMSMessageClass OPTIONAL,
+    dateTime            [7]  Timestamp,
+    expiry              [8]  MMSExpiry OPTIONAL,
+    deliveryReport      [9]  BOOLEAN OPTIONAL,
+    priority            [10] MMSPriority OPTIONAL,
+    readReport          [11] BOOLEAN OPTIONAL,
+    subject             [12] MMSSubject OPTIONAL,
+    messageID           [13] UTF8String OPTIONAL
+}
+
+MMSConvertedToEmail ::= SEQUENCE
+{
+    version             [1]  MMSVersion,
+    transactionID       [2]  UTF8String,
+    terminatingMMSParty [3]  SEQUENCE OF MMSParty,
+    contentType         [4]  MMSContentType,
+    originatingMMSParty [5]  MMSParty,
+    messageClass        [6]  MMSMessageClass OPTIONAL,
+    dateTime            [7]  Timestamp,
+    expiry              [8]  MMSExpiry OPTIONAL,
+    desiredDeliveryTime [9]  Timestamp OPTIONAL,
+    deliveryReport      [10] BOOLEAN OPTIONAL,
+    priority            [11] MMSPriority OPTIONAL,
+    senderVisibility    [12] BOOLEAN OPTIONAL,
+    store               [13] BOOLEAN OPTIONAL,
+    state               [14] MMState OPTIONAL,
+    flags               [15] MMFlags OPTIONAL,
+    readReport          [16] BOOLEAN OPTIONAL,
+    subject             [17] MMSSubject OPTIONAL,
+    messageID           [18] UTF8String OPTIONAL
+}
+
 -- =========
 -- MMS CCPDU
 -- =========