diff --git a/radio/1.5/IRadio.hal b/radio/1.5/IRadio.hal
index a3a3d90..62a2c61 100644
--- a/radio/1.5/IRadio.hal
+++ b/radio/1.5/IRadio.hal
@@ -194,4 +194,31 @@
      * as the input param.
      */
     oneway setDataProfile_1_5(int32_t serial, vec<DataProfileInfo> profiles);
+
+    /**
+     * Toggle radio on and off (for "airplane" mode)
+     * If the radio is turned off/on the radio modem subsystem
+     * is expected return to an initialized state. For instance,
+     * any voice and data calls must be terminated and all associated
+     * lists emptied.
+     *
+     * When setting radio power on to exit from airplane mode to place an emergency call on this
+     * logical modem, powerOn, forEmergencyCall and preferredForEmergencyCall must be true. In
+     * this case, this modem is optimized to scan only emergency call bands, until:
+     * 1) Emergency call is completed; or
+     * 2) Another setRadioPower_1_5 is issued with forEmergencyCall being false or
+     * preferredForEmergencyCall being false; or
+     * 3) Timeout after a long period of time.
+     *
+     * @param serial Serial number of request.
+     * @param powerOn To turn on radio -> on = true, to turn off radio -> on = false.
+     * @param forEmergencyCall To indication to radio if this request is due to emergency call.
+     *      No effect if powerOn is false.
+     * @param preferredForEmergencyCall indicate whether the following emergency call will be sent
+     *      on this modem or not. No effect if forEmergencyCall is false, or powerOn is false.
+     *
+     * Response callback is IRadioConfigResponse. setRadioPowerResponse_1_5.
+     */
+    oneway setRadioPower_1_5(int32_t serial, bool powerOn, bool forEmergencyCall,
+            bool preferredForEmergencyCall);
 };
diff --git a/radio/1.5/IRadioResponse.hal b/radio/1.5/IRadioResponse.hal
index 11ec265..7a0bc57 100644
--- a/radio/1.5/IRadioResponse.hal
+++ b/radio/1.5/IRadioResponse.hal
@@ -135,4 +135,14 @@
      *   RadioError:SIM_ABSENT
      */
     oneway setDataProfileResponse_1_5(RadioResponseInfo info);
+
+    /**
+     * @param info Response info struct containing response type, serial no. and error
+     *
+     * Valid errors returned:
+     *   RadioError:NONE
+     *   RadioError:INTERNAL_ERR
+     *   RadioError:INVALID_ARGUMENTS
+     */
+    oneway setRadioPowerResponse_1_5(RadioResponseInfo info);
 };
diff --git a/radio/1.5/vts/functional/radio_hidl_hal_api.cpp b/radio/1.5/vts/functional/radio_hidl_hal_api.cpp
index 1243bed..d05d2cb 100644
--- a/radio/1.5/vts/functional/radio_hidl_hal_api.cpp
+++ b/radio/1.5/vts/functional/radio_hidl_hal_api.cpp
@@ -958,3 +958,31 @@
                                      {RadioError::NONE, RadioError::RADIO_NOT_AVAILABLE}));
     }
 }
+
+TEST_F(RadioHidlTest_v1_5, setRadioPower_1_5_emergencyCall_cancalled) {
+    // Set radio power to off.
+    serial = GetRandomSerialNumber();
+    radio_v1_5->setRadioPower_1_5(serial, false, false, false);
+    EXPECT_EQ(std::cv_status::no_timeout, wait());
+    EXPECT_EQ(RadioResponseType::SOLICITED, radioRsp_v1_5->rspInfo.type);
+    EXPECT_EQ(serial, radioRsp_v1_5->rspInfo.serial);
+    EXPECT_EQ(RadioError::NONE, radioRsp_v1_5->rspInfo.error);
+
+    // Set radio power to on with forEmergencyCall being true. This should put modem to only scan
+    // emergency call bands.
+    serial = GetRandomSerialNumber();
+    radio_v1_5->setRadioPower_1_5(serial, true, true, true);
+    EXPECT_EQ(std::cv_status::no_timeout, wait());
+    EXPECT_EQ(RadioResponseType::SOLICITED, radioRsp_v1_5->rspInfo.type);
+    EXPECT_EQ(serial, radioRsp_v1_5->rspInfo.serial);
+    EXPECT_EQ(RadioError::NONE, radioRsp_v1_5->rspInfo.error);
+
+    // Set radio power to on with forEmergencyCall being false. This should put modem in regular
+    // operation modem.
+    serial = GetRandomSerialNumber();
+    radio_v1_5->setRadioPower_1_5(serial, true, false, false);
+    EXPECT_EQ(std::cv_status::no_timeout, wait());
+    EXPECT_EQ(RadioResponseType::SOLICITED, radioRsp_v1_5->rspInfo.type);
+    EXPECT_EQ(serial, radioRsp_v1_5->rspInfo.serial);
+    EXPECT_EQ(RadioError::NONE, radioRsp_v1_5->rspInfo.error);
+}
\ No newline at end of file
diff --git a/radio/1.5/vts/functional/radio_hidl_hal_utils_v1_5.h b/radio/1.5/vts/functional/radio_hidl_hal_utils_v1_5.h
index f7526d9..c2ee94e 100644
--- a/radio/1.5/vts/functional/radio_hidl_hal_utils_v1_5.h
+++ b/radio/1.5/vts/functional/radio_hidl_hal_utils_v1_5.h
@@ -549,6 +549,8 @@
     Return<void> setInitialAttachApnResponse_1_5(const RadioResponseInfo& info);
 
     Return<void> setDataProfileResponse_1_5(const RadioResponseInfo& info);
+
+    Return<void> setRadioPowerResponse_1_5(const RadioResponseInfo& info);
 };
 
 /* Callback class for radio indication */
diff --git a/radio/1.5/vts/functional/radio_response.cpp b/radio/1.5/vts/functional/radio_response.cpp
index 5dee191..8932a64 100644
--- a/radio/1.5/vts/functional/radio_response.cpp
+++ b/radio/1.5/vts/functional/radio_response.cpp
@@ -948,3 +948,9 @@
     parent_v1_5.notify(info.serial);
     return Void();
 }
+
+Return<void> RadioResponse_v1_5::setRadioPowerResponse_1_5(const RadioResponseInfo& info) {
+    rspInfo = info;
+    parent_v1_5.notify(info.serial);
+    return Void();
+}
\ No newline at end of file