diff --git a/audio/SamsungAudio/src/android/hardware/media/SamsungAudioService.java b/audio/SamsungAudio/src/android/hardware/media/SamsungAudioService.java
index b13737b..2e9ad1f 100644
--- a/audio/SamsungAudio/src/android/hardware/media/SamsungAudioService.java
+++ b/audio/SamsungAudio/src/android/hardware/media/SamsungAudioService.java
@@ -26,19 +26,14 @@ import android.os.Handler;
 import android.media.AudioManager;
 import android.media.AudioDeviceInfo;
 import android.media.AudioSystem;
-import android.bluetooth.BluetoothAdapter;
-import android.bluetooth.BluetoothManager;
 
 public class SamsungAudioService extends Service {
     private static final String TAG = "SamsungAudioService";
     private static final boolean DEBUG = false;
-    private boolean hasBTcallSet = false;
 
     private Handler mHandler;
     private static Runnable mRunnable;
     private AudioManager mAudioManager;
-    private BluetoothManager mBluetoothManager;
-    private BluetoothAdapter mBluetoothAdapter;
 
     @Override
     public void onCreate() {
@@ -46,39 +41,11 @@ public class SamsungAudioService extends Service {
 
         mAudioManager = getSystemService(AudioManager.class);
 
-        mBluetoothManager = (BluetoothManager) getSystemService(Context.BLUETOOTH_SERVICE);
-        mBluetoothAdapter = mBluetoothManager.getAdapter();
-
         mHandler = new Handler();
         mRunnable = new Runnable() {
             public void run() {
                 if (DEBUG) Log.d(TAG, "onCreate: " + TAG + " is running");
 
-                if (!mBluetoothAdapter.isEnabled()) {
-                    if (DEBUG) Log.d(TAG, "Bluetooth is not enabled");
-                    SystemProperties.set("vendor.audio.a2dp.connected", "false");
-                }
-
-                if (mAudioManager.getMode() != AudioManager.MODE_IN_CALL && mAudioManager.getMode() != AudioManager.MODE_IN_COMMUNICATION && hasBTcallSet) {
-                    if (DEBUG) Log.d(TAG, "Call ended, reset everything");
-                    hasBTcallSet = false;
-                    SystemProperties.set("vendor.audio.call.switched", "false");
-                    AudioSystem.setParameters("reset_a2dp=1");
-                }
-
-                if (SystemProperties.get("vendor.audio.a2dp.connected").equals("true") && mAudioManager.getMode() == AudioManager.MODE_IN_CALL
-                        && mBluetoothAdapter.isEnabled()) {
-                    if (hasBTcallSet) {
-                        SystemProperties.set("vendor.audio.call.switched", "true");
-                    }
-                    if (!hasBTcallSet) {
-                        if (DEBUG) Log.d(TAG, "Setting A2DP parameter");
-                        AudioSystem.setParameters("a2dp_call=1");
-                        hasBTcallSet = true;
-                        SystemProperties.set("vendor.audio.call.switched", "false");
-                    }
-                }
-
                 if (mAudioManager.getMode() == AudioManager.MODE_IN_COMMUNICATION) {
 
                     if (mAudioManager.getCommunicationDevice().getType() == AudioDeviceInfo.TYPE_BLUETOOTH_SCO
diff --git a/audio/configs/audio_policy_configuration.xml b/audio/configs/audio_policy_configuration.xml
index bd9b0f9..81ca187 100644
--- a/audio/configs/audio_policy_configuration.xml
+++ b/audio/configs/audio_policy_configuration.xml
@@ -8,10 +8,11 @@
         <module name="primary" halVersion="3.0">
             <attachedDevices>
                 <item>Earpiece</item>
+                <item>Telephony Tx</item>
                 <item>Speaker</item>
                 <item>Built-In Mic</item>
                 <item>Built-In Back Mic</item>
-                <item>Voice Call Mic</item>
+                <item>Telephony Rx</item>
             </attachedDevices>
 
             <defaultOutputDevice>Speaker</defaultOutputDevice>
@@ -41,6 +42,25 @@
                              samplingRates="8000,11025,12000,16000,22050,24000,32000,44100,48000,88200,96000,176400,192000"
                              channelMasks="AUDIO_CHANNEL_IN_STEREO,AUDIO_CHANNEL_INDEX_MASK_2,AUDIO_CHANNEL_IN_5POINT1,AUDIO_CHANNEL_INDEX_MASK_6,AUDIO_CHANNEL_IN_7POINT1,AUDIO_CHANNEL_INDEX_MASK_8"/>
                 </mixPort>
+                <mixPort name="voice_tx" role="source">
+                    <profile name="" format="AUDIO_FORMAT_PCM_16_BIT"
+                             samplingRates="8000,16000,48000" channelMasks="AUDIO_CHANNEL_OUT_MONO,AUDIO_CHANNEL_OUT_STEREO"/>
+                </mixPort>
+                <mixPort name="voip_rx" role="source"
+                         flags="AUDIO_OUTPUT_FLAG_DIRECT|AUDIO_OUTPUT_FLAG_VOIP_RX">
+                    <profile name="" format="AUDIO_FORMAT_PCM_16_BIT"
+                             samplingRates="8000,16000,32000,48000" channelMasks="AUDIO_CHANNEL_OUT_MONO,AUDIO_CHANNEL_OUT_STEREO"/>
+                </mixPort>
+                <mixPort name="voip_tx" role="sink"
+                         flags="AUDIO_INPUT_FLAG_VOIP_TX">
+                    <profile name="" format="AUDIO_FORMAT_PCM_16_BIT"
+                             samplingRates="8000,16000,32000,48000" channelMasks="AUDIO_CHANNEL_IN_MONO"/>
+                </mixPort>
+                <mixPort name="voice_rx" role="sink">
+                    <profile name="" format="AUDIO_FORMAT_PCM_16_BIT"
+                             samplingRates="8000,16000,48000" channelMasks="AUDIO_CHANNEL_IN_MONO,AUDIO_CHANNEL_IN_STEREO"/>
+                </mixPort>
+
                 <mixPort name="hifi_playback" role="source" />
                 <mixPort name="hifi_input" role="sink" />
             </mixPorts>
@@ -62,9 +82,21 @@
                    <profile name="" format="AUDIO_FORMAT_PCM_16_BIT"
                             samplingRates="48000" channelMasks="AUDIO_CHANNEL_OUT_STEREO"/>
                 </devicePort>
-                <devicePort tagName="Bt Sco All" role="sink" type="AUDIO_DEVICE_OUT_BLUETOOTH_SCO_HEADSET">
-                   <profile name="" format="AUDIO_FORMAT_PCM_16_BIT"
-                            samplingRates="48000" channelMasks="AUDIO_CHANNEL_OUT_STEREO"/>
+                <devicePort tagName="BT SCO" type="AUDIO_DEVICE_OUT_BLUETOOTH_SCO" role="sink">
+                    <profile name="" format="AUDIO_FORMAT_PCM_16_BIT"
+                             samplingRates="8000,16000" channelMasks="AUDIO_CHANNEL_OUT_STEREO"/>
+                </devicePort>
+                <devicePort tagName="BT SCO Headset" type="AUDIO_DEVICE_OUT_BLUETOOTH_SCO_HEADSET" role="sink">
+                    <profile name="" format="AUDIO_FORMAT_PCM_16_BIT"
+                             samplingRates="8000,16000" channelMasks="AUDIO_CHANNEL_OUT_STEREO"/>
+                </devicePort>
+                <devicePort tagName="BT SCO Car Kit" type="AUDIO_DEVICE_OUT_BLUETOOTH_SCO_CARKIT" role="sink">
+                    <profile name="" format="AUDIO_FORMAT_PCM_16_BIT"
+                             samplingRates="8000,16000" channelMasks="AUDIO_CHANNEL_OUT_STEREO"/>
+                </devicePort>
+                <devicePort tagName="Telephony Tx" type="AUDIO_DEVICE_OUT_TELEPHONY_TX" role="sink">
+                    <profile name="" format="AUDIO_FORMAT_PCM_16_BIT"
+                             samplingRates="8000,16000" channelMasks="AUDIO_CHANNEL_OUT_MONO,AUDIO_CHANNEL_OUT_STEREO"/>
                 </devicePort>
                 <devicePort tagName="Aux Device Out" role="sink" type="AUDIO_DEVICE_OUT_AUX_DIGITAL">
                     <profile name="" format="AUDIO_FORMAT_PCM_16_BIT"
@@ -105,10 +137,9 @@
                              samplingRates="8000,11025,12000,16000,22050,24000,32000,44100,48000"
                              channelMasks="AUDIO_CHANNEL_IN_MONO,AUDIO_CHANNEL_IN_STEREO,AUDIO_CHANNEL_IN_FRONT_BACK"/>
                 </devicePort>
-                <devicePort tagName="Voice Call Mic" type="AUDIO_DEVICE_IN_VOICE_CALL" role="source">
+                <devicePort tagName="Telephony Rx" type="AUDIO_DEVICE_IN_TELEPHONY_RX" role="source">
                     <profile name="" format="AUDIO_FORMAT_PCM_16_BIT"
-                             samplingRates="8000,11025,12000,16000,22050,24000,32000,44100,48000"
-                             channelMasks="AUDIO_CHANNEL_IN_MONO,AUDIO_CHANNEL_IN_STEREO,AUDIO_CHANNEL_IN_FRONT_BACK"/>
+                             samplingRates="8000,16000,48000" channelMasks="AUDIO_CHANNEL_IN_MONO"/>
                 </devicePort>
                 <devicePort tagName="FM Mic" type="AUDIO_DEVICE_IN_FM_TUNER" role="source">
                     <profile name="" format="AUDIO_FORMAT_PCM_16_BIT"
@@ -138,10 +169,20 @@
                        sources="USB Device In,USB Headset In"/>
                 <route type="mix" sink="hifi_input"
                        sources="USB Device In,USB Headset In"/>
-                <route type="mix" sink="Bt Sco All"
-                       sources="primary-out,fast"/>
+                <route type="mix" sink="BT SCO"
+                       sources="primary-out,fast,voip_rx"/>
+                <route type="mix" sink="BT SCO Headset"
+                       sources="primary-out,fast,voip_rx"/>
+                <route type="mix" sink="BT SCO Car Kit"
+                       sources="primary-out,fast,voip_rx"/>
+                <route type="mix" sink="Telephony Tx"
+                       sources="voice_tx"/>
+                <route type="mix" sink="voice_rx"
+                       sources="Telephony Rx"/>
+                <route type="mix" sink="voip_tx"
+                       sources="Built-In Mic,Built-In Back Mic,Bt Sco Headset Mic,USB Device In,USB Headset In,Wired Headset Mic"/>
                 <route type="mix" sink="primary-in"
-                       sources="Built-In Mic,Built-In Back Mic,Wired Headset Mic,Bt Sco Headset Mic,Aux Device In,Voice Call Mic,FM Mic,USB Device In,USB Headset In"/>
+                       sources="Built-In Mic,Built-In Back Mic,Wired Headset Mic,Bt Sco Headset Mic,Aux Device In,FM Mic,USB Device In,USB Headset In"/>
             </routes>
 
         </module>
diff --git a/audio/impl/ParametersUtil.cpp b/audio/impl/ParametersUtil.cpp
index 6c6a938..0bf4172 100644
--- a/audio/impl/ParametersUtil.cpp
+++ b/audio/impl/ParametersUtil.cpp
@@ -215,106 +215,6 @@ void setMixerValueByNameString(mixer *mixer, const char *name, const char *value
     }
 }
 
-void setBTincall(bool enabled, char *slot) {
-    const auto mixer = mixer_open(0);
-
-    if (mixer == nullptr) {
-        ALOGE("Failed to open mixer");
-        return;
-    }
-
-    if (enabled) {
-        ALOGD("Fixing BT in-call mixers");
-        setMixerValueByName(mixer, "QUIN_MI2S_RX_Voice Mixer VoiceMMode1", 0);
-        setMixerValueByName(mixer, "QUIN_MI2S_RX_Voice Mixer VoiceMMode2", 0);
-        setMixerValueByName(mixer, "VoiceMMode1_Tx Mixer TX_CDC_DMA_TX_3_MMode1", 0);
-        setMixerValueByName(mixer, "VoiceMMode2_Tx Mixer TX_CDC_DMA_TX_3_MMode2", 0);
-        setMixerValueByNameString(mixer, "SLIM7_RX ADM Channels", "Two");
-        setMixerValueByName(mixer, "TAS256X IVSENSE ENABLE", 0);
-        setMixerValueByName(mixer, "BT SOC status", 1);
-        setMixerValueByName(mixer, "Voip_Tx Mixer TX_CDC_DMA_TX_3_Voip", 0);
-        setMixerValueByName(mixer, "QUIN_MI2S_RX_Voice Mixer Voip", 0);
-        setMixerValueByName(mixer, "TAS256X RECEIVER ENABLE LEFT", 0);
-        setMixerValueByName(mixer, "SmartPA Mute", 1);
-        setMixerValueByNameString(mixer, "TX_CDC_DMA_TX_3 Channels", "One");
-        setMixerValueByName(mixer, "TAS256X ASI Left Switch", 0);
-        setMixerValueByNameString(mixer, "TAS256X ASI1 SEL LEFT", "I2C offset");
-        setMixerValueByName(mixer, "TAS256X AMP OUTPUT LVL LEFT", 20);
-        setMixerValueByName(mixer, "Compress Gapless Playback", 1);
-        setMixerValueByName(mixer, "TX_AIF1_CAP Mixer DEC0", 0);
-        setMixerValueByName(mixer, "TX_AIF1_CAP Mixer DEC1", 0);
-        setMixerValueByNameString(mixer, "TX SMIC MUX0", "ZERO");
-        setMixerValueByNameString(mixer, "TX SMIC MUX1", "ZERO");
-        setMixerValueByNameString(mixer, "TX DEC0 MUX", "MSM_DMIC");
-        setMixerValueByNameString(mixer, "TX DEC1 MUX", "MSM_DMIC");
-        setMixerValueByNameString(mixer, "EC Reference Bit Format", "S16_LE");
-        setMixerValueByName(mixer, "ADC1 Volume", 12);
-        setMixerValueByName(mixer, "ADC3 Volume", 12);
-        setMixerValueByNameString(mixer, "BT SampleRate", "KHZ_16");
-        setMixerValueByNameString(mixer, "BT SampleRate RX", "KHZ_16");
-        setMixerValueByNameString(mixer, "BT SampleRate TX", "KHZ_16");
-        setMixerValueByName(mixer, "ADC3_MIXER Switch", 0);
-
-        if (strcmp(slot, "0") == 0) {
-            setMixerValueByName(mixer, "SLIM_7_RX_Voice Mixer VoiceMMode1", 1);
-            setMixerValueByName(mixer, "VoiceMMode1_Tx Mixer SLIM_7_TX_MMode1", 1);
-            setMixerValueByName(mixer, "SLIM_7_RX_Voice Mixer VoiceMMode1", 0);
-            setMixerValueByName(mixer, "VoiceMMode1_Tx Mixer SLIM_7_TX_MMode1", 0);
-            setMixerValueByName(mixer, "SLIM_7_RX_Voice Mixer VoiceMMode1", 1);
-            setMixerValueByName(mixer, "VoiceMMode1_Tx Mixer SLIM_7_TX_MMode1", 1);
-        } else if (strcmp(slot, "1") == 0) {
-            setMixerValueByName(mixer, "SLIM_7_RX_Voice Mixer VoiceMMode2", 1);
-            setMixerValueByName(mixer, "VoiceMMode2_Tx Mixer SLIM_7_TX_MMode2", 1);
-            setMixerValueByName(mixer, "SLIM_7_RX_Voice Mixer VoiceMMode2", 0);
-            setMixerValueByName(mixer, "VoiceMMode2_Tx Mixer SLIM_7_TX_MMode2", 0);
-            setMixerValueByName(mixer, "SLIM_7_RX_Voice Mixer VoiceMMode2", 1);
-            setMixerValueByName(mixer, "VoiceMMode2_Tx Mixer SLIM_7_TX_MMode2", 1);
-        }
-    } else {
-        ALOGD("Resetting BT in-call mixers");
-        setMixerValueByNameString(mixer, "SLIM7_RX ADM Channels", "Zero");
-        setMixerValueByName(mixer, "TAS256X IVSENSE ENABLE", 1);
-        setMixerValueByName(mixer, "TAS256X RECEIVER ENABLE LEFT", 1);
-        setMixerValueByName(mixer, "SmartPA Mute", 0);
-        setMixerValueByNameString(mixer, "TX_CDC_DMA_TX_3 Channels", "Two");
-        setMixerValueByName(mixer, "TAS256X ASI Left Switch", 1);
-        setMixerValueByNameString(mixer, "TAS256X ASI1 SEL LEFT", "LeftRightDiv2");
-        setMixerValueByName(mixer, "TAS256X AMP OUTPUT LVL LEFT", 0);
-        setMixerValueByName(mixer, "TX_AIF1_CAP Mixer DEC0", 1);
-        setMixerValueByName(mixer, "TX_AIF1_CAP Mixer DEC1", 1);
-        setMixerValueByNameString(mixer, "TX SMIC MUX0", "ADC0");
-        setMixerValueByNameString(mixer, "TX SMIC MUX1", "ADC2");
-        setMixerValueByNameString(mixer, "TX DEC0 MUX", "SWR_MIC");
-        setMixerValueByNameString(mixer, "TX DEC1 MUX", "SWR_MIC");
-        setMixerValueByName(mixer, "EC Reference Bit Format", 0);
-        setMixerValueByName(mixer, "ADC1 Volume", 0);
-        setMixerValueByName(mixer, "ADC3 Volume", 0);
-        setMixerValueByName(mixer, "ADC3_MIXER Switch", 1);
-        setMixerValueByName(mixer, "SLIM_7_RX_Voice Mixer VoiceMMode1", 0);
-        setMixerValueByName(mixer, "VoiceMMode1_Tx Mixer SLIM_7_TX_MMode1", 0);
-        setMixerValueByName(mixer, "SLIM_7_RX_Voice Mixer VoiceMMode2", 0);
-        setMixerValueByName(mixer, "VoiceMMode2_Tx Mixer SLIM_7_TX_MMode2", 0);
-
-        if (strcmp(slot, "0") == 0) {
-            setMixerValueByName(mixer, "QUIN_MI2S_RX_Voice Mixer VoiceMMode1", 1);
-            setMixerValueByName(mixer, "VoiceMMode1_Tx Mixer TX_CDC_DMA_TX_3_MMode1", 1);
-            setMixerValueByName(mixer, "QUIN_MI2S_RX_Voice Mixer VoiceMMode1", 0);
-            setMixerValueByName(mixer, "VoiceMMode1_Tx Mixer TX_CDC_DMA_TX_3_MMode1", 0);
-            setMixerValueByName(mixer, "QUIN_MI2S_RX_Voice Mixer VoiceMMode1", 1);
-            setMixerValueByName(mixer, "VoiceMMode1_Tx Mixer TX_CDC_DMA_TX_3_MMode1", 1);
-        } else if (strcmp(slot, "1") == 0) {
-            setMixerValueByName(mixer, "QUIN_MI2S_RX_Voice Mixer VoiceMMode2", 1);
-            setMixerValueByName(mixer, "VoiceMMode2_Tx Mixer TX_CDC_DMA_TX_3_MMode2", 1);
-            setMixerValueByName(mixer, "QUIN_MI2S_RX_Voice Mixer VoiceMMode2", 0);
-            setMixerValueByName(mixer, "VoiceMMode2_Tx Mixer TX_CDC_DMA_TX_3_MMode2", 0);
-            setMixerValueByName(mixer, "QUIN_MI2S_RX_Voice Mixer VoiceMMode2", 1);
-            setMixerValueByName(mixer, "VoiceMMode2_Tx Mixer TX_CDC_DMA_TX_3_MMode2", 1);
-        }
-    }
-
-    mixer_close(mixer);
-}
-
 void setEarpieceVoipMixers(bool enabled) {
     const auto mixer = mixer_open(0);
 
@@ -420,18 +320,14 @@ void setBTVoipMixers(bool enabled) {
     mixer_close(mixer);
 }
 
-void fixupMixers(int state) {
-    char a2dpcall[92];
+void fixupMixers() {
     char simslot[92];
     char voipdevice[92];
-    char callswitched[92];
     const char *ampstatus;
     int voipstatus, btvoipstatus;
 
-    property_get("vendor.audio.a2dp.connected", a2dpcall, "false");
     property_get("vendor.calls.slotid", simslot, "-1");
     property_get("vendor.audio.voip.device", voipdevice, "none");
-    property_get("vendor.audio.call.switched", callswitched, "false");
 
     voipstatus = getMixerValueByName("QUIN_MI2S_RX_Voice Mixer Voip");
     ampstatus = getMixerValueString("TAS256X RECEIVER ENABLE LEFT");
@@ -441,19 +337,6 @@ void fixupMixers(int state) {
     ALOGD("voipstatus is %d", voipstatus);
     ALOGD("bluetooth VoIP status is %d", btvoipstatus);
 
-    // BT in-call
-    if (strcmp(simslot, "0") == 0 || strcmp(simslot, "1") == 0) {
-        ALOGD("In phone call");
-        if (strcmp(a2dpcall, "true") == 0 && state == 1) {
-            ALOGD("In BT phone call");
-            setBTincall(true, simslot);
-        } else if (strcmp(a2dpcall, "true") == 0 && state == 2 && strcmp(callswitched, "true") == 0) {
-            setBTincall(false, simslot);
-        }
-    } else if (state == 3) {
-        setBTincall(false, simslot);
-    }
-
     // VoIP call
     if (voipstatus == 1 || btvoipstatus == 1) {
         ALOGD("In VoIP call");
@@ -489,24 +372,9 @@ Result ParametersUtil::setParametersImpl(const hidl_vec<ParameterValue>& context
             params.add(String8("g_sco_samplerate"),
                        String8(parameters[i].value == AudioParameter::valueOn ? "16000" : "8000"));
         }
-        if (parameters[i].key == "a2dp_call" || parameters[i].key == "A2dpSuspended") {
-            if (parameters[i].value == "1" || parameters[i].value == "true") {
-                fixupMixers(1);
-            }
-        }
         if (parameters[i].key == "voip_call") {
             if (parameters[i].value == "1") {
-                fixupMixers(0);
-            }
-        }
-        if (parameters[i].key == "BT_SCO") {
-            if (parameters[i].value == "off") {
-                fixupMixers(2);
-            }
-        }
-        if (parameters[i].key == "reset_a2dp") {
-            if (parameters[i].value == "1") {
-               fixupMixers(3);
+                fixupMixers();
             }
         }
         params.add(String8(parameters[i].key.c_str()), String8(parameters[i].value.c_str()));
@@ -520,14 +388,6 @@ Result ParametersUtil::setParam(const char* name, const DeviceAddress& address)
     if (CoreUtils::deviceAddressToHal(address, &halDeviceType, halDeviceAddress) != NO_ERROR) {
         return Result::INVALID_ARGUMENTS;
     }
-    if (halDeviceType == AUDIO_DEVICE_OUT_BLUETOOTH_A2DP || halDeviceType == AUDIO_DEVICE_OUT_BLUETOOTH_SCO
-        || halDeviceType == AUDIO_DEVICE_IN_BLUETOOTH_SCO_HEADSET) {
-        if (strcmp(name, "connect") == 0) {
-            property_set("vendor.audio.a2dp.connected", "true");
-        } else if (strcmp(name, "disconnect") == 0) {
-            property_set("vendor.audio.a2dp.connected", "false");
-        }
-    }
     AudioParameter params{String8(halDeviceAddress)};
     params.addInt(String8(name), halDeviceType);
     return setParams(params);
diff --git a/sepolicy/vendor/property_contexts b/sepolicy/vendor/property_contexts
index 959153f..bca79e4 100644
--- a/sepolicy/vendor/property_contexts
+++ b/sepolicy/vendor/property_contexts
@@ -1,8 +1,6 @@
 # audio
 vendor.audio_hal.                                u:object_r:vendor_audio_prop:s0
 vendor.audio.voip.device                         u:object_r:vendor_samsung_audio_prop:s0
-vendor.audio.a2dp.connected                      u:object_r:vendor_samsung_audio_prop:s0
-vendor.audio.call.switched                       u:object_r:vendor_samsung_audio_prop:s0
 
 # Bluetooth
 vendor.bluetooth_fw_ver                          u:object_r:vendor_bluetooth_prop:s0