diff --git a/cdr.c b/cdr.c
index e7972cb..45bde4a 100644
--- a/cdr.c
+++ b/cdr.c
@@ -545,6 +545,15 @@ static int cdr_parse_srcleg_json(json_object *json, cdr_entry_t *cdr)
         goto err;
     }
 
+    // header_ppi
+    if (!cdr_parse_json_get_g_string(json, "ppi", cdr->header_ppi)) {
+        L_ERROR("Call-Id '%s' does not contain 'ppi' key (P-Preferred-Identity header), '%s'", cdr->call_id->str, json_object_get_string(json));
+        /// Simply return 0 in order to avoid issues with ACC records in the OLD format during an upgrade
+        /// Added in mr12.5, it should be changed to 'err' in mr13.+
+        /// goto err;
+        goto ret;
+    }
+
 ret:
     return 0;
 
@@ -1030,6 +1039,19 @@ static int cdr_parse_srcleg_list(char *srcleg, cdr_entry_t *cdr)
     *tmp1 = MED_SEP;
     tmp2 = ++tmp1;
 
+    tmp1 = strchr(tmp2, MED_SEP);
+    if(tmp1 == NULL)
+    {
+        L_ERROR("Call-Id '%s' has no separated P-Preferred-Identity header, '%s'", cdr->call_id->str, tmp2);
+        /// Simply return 0 in order to avoid issues with ACC records in the OLD format during an upgrade
+        /// Added in mr12.5, it should be changed to -1 in mr13.+
+        return 0;
+    }
+    *tmp1 = '\0';
+    g_string_assign(cdr->header_ppi, tmp2);
+    *tmp1 = MED_SEP;
+    tmp2 = ++tmp1;
+
     return 0;
 }
 
diff --git a/cdr_field_names.inc b/cdr_field_names.inc
index 8a03af8..971b591 100644
--- a/cdr_field_names.inc
+++ b/cdr_field_names.inc
@@ -38,6 +38,7 @@ F(furnished_charging_info)
 F(header_diversion)
 F(header_pai)
 F(header_u2u)
+F(header_ppi)
 
 F(group)
 
diff --git a/medmysql.c b/medmysql.c
index c16462e..7ec484b 100644
--- a/medmysql.c
+++ b/medmysql.c
@@ -1127,6 +1127,9 @@ int medmysql_insert_cdrs(cdr_entry_t *entries, uint64_t count, struct medmysql_b
         if (medmysql_tag_cdr(batch, medmysql_tag_provider_customer, medmysql_tag_direction_source,
                     "concurrent_calls_count_customer", e->source_concurrent_calls_count_customer, e))
             return -1;
+        if (medmysql_tag_cdr(batch, medmysql_tag_provider_customer, medmysql_tag_direction_source,
+                    "header=P-Preferred-Identity", e->header_ppi, e))
+            return -1;
 
         if (medmysql_tag_cdr(batch, medmysql_tag_provider_customer, medmysql_tag_direction_destination,
                     "furnished_charging_info", e->furnished_charging_info, e))