diff --git a/telephony/java/com/android/internal/telephony/GsmAlphabet.java b/telephony/java/com/android/internal/telephony/GsmAlphabet.java
index a3f4f1fe2f22d..2e998490e8754 100644
--- a/telephony/java/com/android/internal/telephony/GsmAlphabet.java
+++ b/telephony/java/com/android/internal/telephony/GsmAlphabet.java
@@ -204,6 +204,24 @@ public class GsmAlphabet {
         }
     }
 
+    /**
+     * Converts a String into a byte array containing the 7-bit packed
+     * GSM Alphabet representation of the string. If a header is provided,
+     * this is included in the returned byte array and padded to a septet
+     * boundary. This method is used by OEM code.
+     *
+     * @param data The text string to encode.
+     * @param header Optional header (including length byte) that precedes
+     * the encoded data, padded to septet boundary.
+     * @return Byte array containing header and encoded data.
+     * @throws EncodeException if String is too large to encode
+     * @see #stringToGsm7BitPackedWithHeader(String, byte[], int, int)
+     */
+    public static byte[] stringToGsm7BitPackedWithHeader(String data, byte[] header)
+            throws EncodeException {
+        return stringToGsm7BitPackedWithHeader(data, header, 0, 0);
+    }
+
     /**
      * Converts a String into a byte array containing the 7-bit packed
      * GSM Alphabet representation of the string. If a header is provided,