diff --git a/docs/reference/api/ModemManager-sections.txt b/docs/reference/api/ModemManager-sections.txt
index 06f1311a..cfbabcfd 100644
--- a/docs/reference/api/ModemManager-sections.txt
+++ b/docs/reference/api/ModemManager-sections.txt
@@ -19,6 +19,7 @@ MMModemLock
 MMModemMode
 MMModemState
 MMModemStateChangeReason
+MMSmsPduType
 MMSmsState
 MMSmsStorage
 </SECTION>
diff --git a/include/ModemManager-enums.h b/include/ModemManager-enums.h
index d853106d..75693823 100644
--- a/include/ModemManager-enums.h
+++ b/include/ModemManager-enums.h
@@ -354,6 +354,22 @@ typedef enum { /*< underscore_name=mm_modem_band >*/
     MM_MODEM_BAND_ANY = 256
 } MMModemBand;
 
+/**
+ * MMSmsPduType:
+ * @MM_SMS_PDU_TYPE_UNKNOWN: Unknown type.
+ * @MM_SMS_PDU_TYPE_DELIVER: SMS has been received from the SMSC.
+ * @MM_SMS_PDU_TYPE_SUBMIT: SMS is sent, or to be sent to the SMSC.
+ * @MM_SMS_PDU_TYPE_STATUS_REPORT: SMS is a status report received from the SMSC.
+ *
+ * Type of PDUs used in the SMS.
+ */
+typedef enum { /*< underscore_name=mm_sms_pdu_type >*/
+    MM_SMS_PDU_TYPE_UNKNOWN       = 0,
+    MM_SMS_PDU_TYPE_DELIVER       = 1,
+    MM_SMS_PDU_TYPE_SUBMIT        = 2,
+    MM_SMS_PDU_TYPE_STATUS_REPORT = 3
+} MMSmsPduType;
+
 /**
  * MMSmsState:
  * @MM_SMS_STATE_UNKNOWN: State unknown or not reportable.
diff --git a/introspection/org.freedesktop.ModemManager1.Sms.xml b/introspection/org.freedesktop.ModemManager1.Sms.xml
index 1992edcf..e382bd95 100644
--- a/introspection/org.freedesktop.ModemManager1.Sms.xml
+++ b/introspection/org.freedesktop.ModemManager1.Sms.xml
@@ -48,6 +48,14 @@
     -->
     <property name="State" type="u" access="read" />
 
+    <!--
+        PduType:
+
+        A <link linkend="MMSmsPduType">MMSmsPduType</link> value,
+        describing the type of PDUs used in the SMS message.
+    -->
+    <property name="PduType" type="u" access="read" />
+
     <!--
         Number:
 
diff --git a/src/mm-broadband-modem.c b/src/mm-broadband-modem.c
index fb6f765e..d4f8a310 100644
--- a/src/mm-broadband-modem.c
+++ b/src/mm-broadband-modem.c
@@ -4816,6 +4816,19 @@ sms_state_from_str (const gchar *str)
     return MM_SMS_STATE_UNKNOWN;
 }
 
+static MMSmsPduType
+sms_pdu_type_from_str (const gchar *str)
+{
+    /* We merge unread and read messages in the same state */
+    if (strstr (str, "REC"))
+        return MM_SMS_PDU_TYPE_DELIVER;
+
+    if (strstr (str, "STO"))
+        return MM_SMS_PDU_TYPE_SUBMIT;
+
+    return MM_SMS_PDU_TYPE_UNKNOWN;
+}
+
 static void
 sms_text_part_list_ready (MMBroadbandModem *self,
                           GAsyncResult *res,
@@ -4866,24 +4879,24 @@ sms_text_part_list_ready (MMBroadbandModem *self,
             goto next;
         }
 
+        /* Get part state */
+        stat = mm_get_string_unquoted_from_match_info (match_info, 2);
+        if (!stat) {
+            mm_dbg ("Failed to get part status");
+            goto next;
+        }
+
         /* Get and parse number */
         number = mm_get_string_unquoted_from_match_info (match_info, 3);
         if (!number) {
             mm_dbg ("Failed to get message sender number");
+            g_free (stat);
             goto next;
         }
 
         number = mm_broadband_modem_take_and_convert_to_utf8 (MM_BROADBAND_MODEM (self),
                                                               number);
 
-        /* Get part state */
-        stat = mm_get_string_unquoted_from_match_info (match_info, 2);
-        if (!stat) {
-            mm_dbg ("Failed to get part status");
-            g_free (number);
-            goto next;
-        }
-
         /* Get and parse timestamp (always expected in ASCII) */
         timestamp = mm_get_string_unquoted_from_match_info (match_info, 5);
 
@@ -4901,7 +4914,8 @@ sms_text_part_list_ready (MMBroadbandModem *self,
         g_free (ucs2_text);
 
         /* all take() methods pass ownership of the value as well */
-        part = mm_sms_part_new (idx);
+        part = mm_sms_part_new (idx,
+                                sms_pdu_type_from_str (stat));
         mm_sms_part_take_number (part, number);
         mm_sms_part_take_timestamp (part, timestamp);
         mm_sms_part_take_text (part, text);
diff --git a/src/mm-sms-part.c b/src/mm-sms-part.c
index f0b36ce4..541810c6 100644
--- a/src/mm-sms-part.c
+++ b/src/mm-sms-part.c
@@ -21,6 +21,7 @@
 
 #include <ModemManager.h>
 #include <mm-errors-types.h>
+#include <libmm-common.h>
 
 #include "mm-sms-part.h"
 #include "mm-charsets.h"
@@ -260,6 +261,7 @@ sms_decode_text (const guint8 *text, int len, MMSmsEncoding encoding, int bit_of
 
 struct _MMSmsPart {
     guint index;
+    MMSmsPduType pdu_type;
     gchar *smsc;
     gchar *timestamp;
     gchar *number;
@@ -323,6 +325,8 @@ mm_sms_part_free (MMSmsPart *self)
 
 PART_GET_FUNC (guint, index)
 PART_SET_FUNC (guint, index)
+PART_GET_FUNC (MMSmsPduType, pdu_type)
+PART_SET_FUNC (MMSmsPduType, pdu_type)
 PART_GET_FUNC (const gchar *, smsc)
 PART_SET_TAKE_STR_FUNC (smsc)
 PART_GET_FUNC (const gchar *, number)
@@ -383,12 +387,14 @@ mm_sms_part_should_concat (MMSmsPart *self)
 }
 
 MMSmsPart *
-mm_sms_part_new (guint index)
+mm_sms_part_new (guint index,
+                 MMSmsPduType pdu_type)
 {
     MMSmsPart *sms_part;
 
     sms_part = g_slice_new0 (MMSmsPart);
     sms_part->index = index;
+    sms_part->pdu_type = pdu_type;
 
     return sms_part;
 }
@@ -500,7 +506,7 @@ mm_sms_part_new_from_binary_pdu (guint index,
     }
 
     /* Create the new MMSmsPart */
-    sms_part = mm_sms_part_new (index);
+    sms_part = mm_sms_part_new (index, MM_SMS_PDU_TYPE_SUBMIT);
     mm_sms_part_take_smsc (sms_part,
                            sms_decode_address (&pdu[1], 2 * (pdu[0] - 1)));
     mm_sms_part_take_number (sms_part,
diff --git a/src/mm-sms-part.h b/src/mm-sms-part.h
index 7fbbc411..2d61e99e 100644
--- a/src/mm-sms-part.h
+++ b/src/mm-sms-part.h
@@ -18,6 +18,7 @@
 #define MM_SMS_PART_H
 
 #include <glib.h>
+#include <ModemManager-enums.h>
 
 typedef enum {
     MM_SMS_ENCODING_UNKNOWN = 0x0,
@@ -31,7 +32,8 @@ typedef struct _MMSmsPart MMSmsPart;
 #define SMS_MAX_PDU_LEN 344
 #define SMS_PART_INVALID_INDEX G_MAXUINT
 
-MMSmsPart *mm_sms_part_new  (guint index);
+MMSmsPart *mm_sms_part_new  (guint index,
+                             MMSmsPduType type);
 MMSmsPart *mm_sms_part_new_from_pdu  (guint index,
                                       const gchar *hexpdu,
                                       GError **error);
@@ -50,6 +52,10 @@ guint             mm_sms_part_get_index              (MMSmsPart *part);
 void              mm_sms_part_set_index              (MMSmsPart *part,
                                                       guint index);
 
+MMSmsPduType      mm_sms_part_get_pdu_type           (MMSmsPart *part);
+void              mm_sms_part_set_pdu_type           (MMSmsPart *part,
+                                                      MMSmsPduType type);
+
 const gchar      *mm_sms_part_get_smsc               (MMSmsPart *part);
 void              mm_sms_part_set_smsc               (MMSmsPart *part,
                                                       const gchar *smsc);
diff --git a/src/mm-sms.c b/src/mm-sms.c
index c18f167c..affe92d3 100644
--- a/src/mm-sms.c
+++ b/src/mm-sms.c
@@ -1171,6 +1171,7 @@ assemble_sms (MMSms *self,
 
     /* If we got everything, assemble the text! */
     g_object_set (self,
+                  "pdu-type",  mm_sms_part_get_pdu_type (sorted_parts[0]),
                   "text",      fulltext->str,
                   "data",      g_variant_new_from_data (G_VARIANT_TYPE ("ay"),
                                                         fulldata->data,
@@ -1392,7 +1393,8 @@ mm_sms_new_from_properties (MMBaseModem *modem,
                     i, (guint)strlen (split_text[i]));
 
             /* Create new part */
-            part = mm_sms_part_new (SMS_PART_INVALID_INDEX);
+            part = mm_sms_part_new (SMS_PART_INVALID_INDEX,
+                                    MM_SMS_PDU_TYPE_SUBMIT);
             mm_sms_part_set_text (part, split_text[i]);
             mm_sms_part_set_encoding (part, encoding);
             mm_sms_part_set_number (part, mm_sms_properties_get_number (properties));
@@ -1429,7 +1431,8 @@ mm_sms_new_from_properties (MMBaseModem *modem,
     }
 
     /* Single part it will be */
-    part = mm_sms_part_new (SMS_PART_INVALID_INDEX);
+    part = mm_sms_part_new (SMS_PART_INVALID_INDEX,
+                            MM_SMS_PDU_TYPE_SUBMIT);
     if (n_parts == 1) {
         mm_sms_part_set_text (part, mm_sms_properties_get_text (properties));
         mm_sms_part_set_encoding (part, encoding);
diff --git a/src/tests/test-sms-part.c b/src/tests/test-sms-part.c
index 13c009ee..4006abef 100644
--- a/src/tests/test-sms-part.c
+++ b/src/tests/test-sms-part.c
@@ -527,7 +527,7 @@ common_test_create_pdu (const gchar *smsc,
     guint len = 0, msgstart = 0;
     GError *error = NULL;
 
-    part = mm_sms_part_new (0);
+    part = mm_sms_part_new (0, MM_SMS_PDU_TYPE_SUBMIT);
     if (smsc)
         mm_sms_part_set_smsc (part, smsc);
     if (number)