diff --git a/radio/1.5/IRadio.hal b/radio/1.5/IRadio.hal
index ee4438d..bea0454 100644
--- a/radio/1.5/IRadio.hal
+++ b/radio/1.5/IRadio.hal
@@ -16,9 +16,10 @@
 
 package android.hardware.radio@1.5;
 
+import @1.0::CdmaSmsMessage;
 import @1.2::DataRequestReason;
-import @1.4::IRadio;
 import @1.4::DataProfileInfo;
+import @1.4::IRadio;
 import @1.5::AccessNetwork;
 import @1.5::BarringInfo;
 import @1.5::DataProfileInfo;
@@ -282,4 +283,15 @@
      */
     oneway setNetworkSelectionModeManual_1_5(int32_t serial, string operatorNumeric,
             RadioAccessNetworks ran);
+
+    /**
+     * Send an SMS message. Identical to sendCdmaSms,
+     * except that more messages are expected to be sent soon.
+     *
+     * @param serial Serial number of request.
+     * @param sms Cdma Sms to be sent described by CdmaSmsMessage in types.hal
+     *
+     * Response callback is IRadioResponse.sendCdmaSMSExpectMoreResponse()
+     */
+    oneway sendCdmaSmsExpectMore(int32_t serial, CdmaSmsMessage sms);
 };