diff --git a/dom/system/gonk/ril_worker.js b/dom/system/gonk/ril_worker.js
index efeb53fc0941..604207f61f1b 100644
--- a/dom/system/gonk/ril_worker.js
+++ b/dom/system/gonk/ril_worker.js
@@ -9149,6 +9149,82 @@ let ICCRecordHelper = {
                                    onerror: onerror});
   },
 
+  /**
+   * Read ICC EF_IAP. (Index Administration Phonebook)
+   *
+   * @see TS 131.102, clause 4.4.2.2
+   *
+   * @param fileId       EF id of the IAP.
+   * @param recordNumber The number of the record shall be loaded.
+   * @param onsuccess    Callback to be called when success.
+   * @param onerror      Callback to be called when error.
+   */
+  readIAP: function readIAP(fileId, recordNumber, onsuccess, onerror) {
+    function callback(options) {
+      let strLen = Buf.readUint32();
+      let octetLen = strLen / 2;
+
+      let iap = GsmPDUHelper.readHexOctetArray(octetLen);
+      Buf.readStringDelimiter(strLen);
+
+      if (onsuccess) {
+        onsuccess(iap);
+      }
+    }
+
+    ICCIOHelper.loadLinearFixedEF({fileId: fileId,
+                                   recordNumber: recordNumber,
+                                   callback: callback.bind(this),
+                                   onerror: onerror});
+  },
+
+  /**
+   * Read USIM Phonebook EF_EMAIL.
+   *
+   * @see TS 131.102, clause 4.4.2.13
+   *
+   * @param fileId       EF id of the EMAIL.
+   * @param fileType     The type of the EMAIL, one of the ICC_USIM_TYPE* constants.
+   * @param recordNumber The number of the record shall be loaded.
+   * @param onsuccess    Callback to be called when success.
+   * @param onerror      Callback to be called when error.
+   */
+  readEmail: function readEmail(fileId, fileType, recordNumber, onsuccess, onerror) {
+    function callback(optoins) {
+      let strLen = Buf.readUint32();
+      let octetLen = strLen / 2;
+      let email = null;
+
+      // Read contact's email
+      //
+      // | Byte     | Description                 | Length | M/O
+      // | 1 ~ X    | E-mail Address              |   X    |  M
+      // | X+1      | ADN file SFI                |   1    |  C
+      // | X+2      | ADN file Record Identifier  |   1    |  C
+      // Note: The fields marked as C above are mandatort if the file
+      //       is not type 1 (as specified in EF_PBR)
+      if (fileType == ICC_USIM_TYPE1_TAG) {
+        email = GsmPDUHelper.read8BitUnpackedToString(octetLen);
+      } else {
+        email = GsmPDUHelper.read8BitUnpackedToString(octetLen - 2);
+
+        // Consumes the remaining buffer
+        Buf.seekIncoming(2 * PDU_HEX_OCTET_SIZE); // For ADN SFI and Record Identifier
+      }
+
+      Buf.readStringDelimiter(strLen);
+
+      if (onsuccess) {
+        onsuccess(email);
+      }
+    }
+
+    ICCIOHelper.loadLinearFixedEF({fileId: fileId,
+                                   recordNumber: recordNumber,
+                                   callback: callback.bind(this),
+                                   onerror: onerror});
+  },
+
   /**
    * Read the PLMNsel (Public Land Mobile Network) from the ICC.
    *