diff --git a/app/src/main/java/org/linphone/ui/call/CallActivity.kt b/app/src/main/java/org/linphone/ui/call/CallActivity.kt
index c108aac0a..14fd17b08 100644
--- a/app/src/main/java/org/linphone/ui/call/CallActivity.kt
+++ b/app/src/main/java/org/linphone/ui/call/CallActivity.kt
@@ -42,6 +42,7 @@ import androidx.window.layout.WindowLayoutInfo
 import com.google.android.material.bottomsheet.BottomSheetDialogFragment
 import kotlinx.coroutines.Dispatchers
 import kotlinx.coroutines.launch
+import org.linphone.LinphoneApplication.Companion.coreContext
 import org.linphone.R
 import org.linphone.core.tools.Log
 import org.linphone.databinding.CallActivityBinding
@@ -239,6 +240,15 @@ class CallActivity : GenericActivity() {
         bottomSheetDialog = null
     }
 
+    override fun onDestroy() {
+        super.onDestroy()
+
+        coreContext.postOnCoreThread { core ->
+            Log.i("$TAG Activity destroyed, removing native video window ID")
+            core.nativeVideoWindowId = null
+        }
+    }
+
     override fun onResume() {
         super.onResume()
 
diff --git a/app/src/main/java/org/linphone/ui/call/fragment/ActiveConferenceCallFragment.kt b/app/src/main/java/org/linphone/ui/call/fragment/ActiveConferenceCallFragment.kt
index 892307fb1..4d7f30a1f 100644
--- a/app/src/main/java/org/linphone/ui/call/fragment/ActiveConferenceCallFragment.kt
+++ b/app/src/main/java/org/linphone/ui/call/fragment/ActiveConferenceCallFragment.kt
@@ -33,6 +33,7 @@ import com.google.android.material.bottomsheet.BottomSheetBehavior
 import org.linphone.LinphoneApplication.Companion.coreContext
 import org.linphone.core.tools.Log
 import org.linphone.databinding.CallActiveConferenceFragmentBinding
+import org.linphone.ui.call.model.ConferenceModel
 import org.linphone.ui.call.viewmodel.CallsViewModel
 import org.linphone.ui.call.viewmodel.CurrentCallViewModel
 import org.linphone.utils.Event
@@ -98,6 +99,28 @@ class ActiveConferenceCallFragment : GenericCallFragment() {
             sharedViewModel.toggleFullScreenEvent.value = Event(hide)
         }
 
+        callViewModel.conferenceModel.conferenceLayout.observe(viewLifecycleOwner) { layout ->
+            coreContext.postOnCoreThread { core ->
+                when (layout) {
+                    ConferenceModel.ACTIVE_SPEAKER_LAYOUT -> {
+                        Log.i(
+                            "$TAG Current layout is active speaker, setting native video window ID"
+                        )
+                        core.nativeVideoWindowId = binding.activeSpeakerSurface
+                    }
+                    else -> {
+                        Log.i(
+                            "$TAG Current layout isn't active speaker, removing native video window ID"
+                        )
+                        core.nativeVideoWindowId = null
+                    }
+                }
+            }
+
+            // Collapse bottom sheet after changing conference layout
+            actionsBottomSheetBehavior.state = BottomSheetBehavior.STATE_COLLAPSED
+        }
+
         binding.setCallsListClickListener {
             Log.i("$TAG Going to calls list fragment")
             val action = ActiveConferenceCallFragmentDirections.actionActiveConferenceCallFragmentToCallsListFragment()
diff --git a/app/src/main/java/org/linphone/ui/call/model/ConferenceModel.kt b/app/src/main/java/org/linphone/ui/call/model/ConferenceModel.kt
index d238b8e12..9c39f41d0 100644
--- a/app/src/main/java/org/linphone/ui/call/model/ConferenceModel.kt
+++ b/app/src/main/java/org/linphone/ui/call/model/ConferenceModel.kt
@@ -53,6 +53,8 @@ class ConferenceModel {
 
     val participantsLabel = MutableLiveData<String>()
 
+    val activeSpeakerName = MutableLiveData<String>()
+
     val isCurrentCallInConference = MutableLiveData<Boolean>()
 
     val conferenceLayout = MutableLiveData<Int>()
@@ -80,6 +82,24 @@ class ConferenceModel {
             removeParticipant(participant)
         }
 
+        @WorkerThread
+        override fun onActiveSpeakerParticipantDevice(
+            conference: Conference,
+            participantDevice: ParticipantDevice
+        ) {
+            val found = participantDevices.value.orEmpty().find {
+                it.device == participantDevice
+            }
+            if (found != null) {
+                val name = found.avatarModel.contactName ?: participantDevice.name ?: participantDevice.address.username
+                Log.i("$TAG Newly active speaker participant is [$name]")
+                activeSpeakerName.postValue(name.orEmpty())
+            } else {
+                Log.i("$TAG Failed to find actively speaking participant...")
+                activeSpeakerName.postValue(participantDevice.name)
+            }
+        }
+
         @WorkerThread
         override fun onParticipantAdminStatusChanged(
             conference: Conference,
@@ -278,6 +298,12 @@ class ConferenceModel {
             for (device in participant.devices) {
                 val model = ConferenceParticipantDeviceModel(device)
                 devicesList.add(model)
+
+                if (device.isSpeaking) {
+                    val name = model.avatarModel.contactName ?: device.name ?: device.address.username
+                    Log.i("$TAG Using participant is [$name] as current active speaker")
+                    activeSpeakerName.postValue(name.orEmpty())
+                }
             }
         }
         Log.i(
diff --git a/app/src/main/java/org/linphone/ui/call/model/ConferenceParticipantDeviceModel.kt b/app/src/main/java/org/linphone/ui/call/model/ConferenceParticipantDeviceModel.kt
index 37daf1261..118cde62a 100644
--- a/app/src/main/java/org/linphone/ui/call/model/ConferenceParticipantDeviceModel.kt
+++ b/app/src/main/java/org/linphone/ui/call/model/ConferenceParticipantDeviceModel.kt
@@ -63,7 +63,7 @@ class ConferenceParticipantDeviceModel @WorkerThread constructor(
 
         @WorkerThread
         override fun onIsMuted(participantDevice: ParticipantDevice, muted: Boolean) {
-            Log.i(
+            Log.d(
                 "$TAG Participant device [${participantDevice.address.asStringUriOnly()}] is ${if (participantDevice.isMuted) "muted" else "no longer muted"}"
             )
             isMuted.postValue(participantDevice.isMuted)
@@ -74,10 +74,10 @@ class ConferenceParticipantDeviceModel @WorkerThread constructor(
             participantDevice: ParticipantDevice,
             speaking: Boolean
         ) {
-            Log.i(
+            Log.d(
                 "$TAG Participant device [${participantDevice.address.asStringUriOnly()}] is ${if (participantDevice.isSpeaking) "speaking" else "no longer speaking"}"
             )
-            isSpeaking.postValue(participantDevice.isSpeaking)
+            isSpeaking.postValue(speaking)
         }
 
         @WorkerThread
@@ -86,11 +86,10 @@ class ConferenceParticipantDeviceModel @WorkerThread constructor(
             available: Boolean,
             streamType: StreamType?
         ) {
-            Log.i(
+            Log.d(
                 "$TAG Participant device [${participantDevice.address.asStringUriOnly()}] stream [$streamType] availability changed to ${if (available) "available" else "not available"}"
             )
             if (streamType == StreamType.Video) {
-                val available = participantDevice.getStreamAvailability(StreamType.Video)
                 isVideoAvailable.postValue(available)
                 if (available) {
                     updateWindowId(textureView)
@@ -104,13 +103,12 @@ class ConferenceParticipantDeviceModel @WorkerThread constructor(
             direction: MediaDirection?,
             streamType: StreamType?
         ) {
-            Log.i(
+            Log.d(
                 "$TAG Participant device [${participantDevice.address.asStringUriOnly()}] stream [$streamType] capability changed to [$direction]"
             )
             if (streamType == StreamType.Video) {
-                val videoCapability = participantDevice.getStreamCapability(StreamType.Video)
                 isSendingVideo.postValue(
-                    videoCapability == MediaDirection.SendRecv || videoCapability == MediaDirection.SendOnly
+                    direction == MediaDirection.SendRecv || direction == MediaDirection.SendOnly
                 )
             }
         }
diff --git a/app/src/main/res/layout/call_active_conference_fragment.xml b/app/src/main/res/layout/call_active_conference_fragment.xml
index 01fe199b3..735f8a19b 100644
--- a/app/src/main/res/layout/call_active_conference_fragment.xml
+++ b/app/src/main/res/layout/call_active_conference_fragment.xml
@@ -6,6 +6,7 @@
     <data>
         <import type="android.view.View" />
         <import type="org.linphone.core.ChatRoom.SecurityLevel" />
+        <import type="org.linphone.ui.call.model.ConferenceModel" />
         <variable
             name="shareConferenceClickListener"
             type="View.OnClickListener" />
@@ -63,7 +64,7 @@
                 android:layout_marginStart="5dp"
                 android:layout_marginEnd="5dp"
                 android:text="@string/conference_call_empty"
-                android:textColor="?attr/color_main2_000"
+                android:textColor="@color/white"
                 android:textSize="22sp"
                 android:gravity="center"
                 android:visibility="@{conferenceViewModel.participantDevices.size() > 1 ? View.GONE : View.VISIBLE}"
@@ -102,7 +103,7 @@
                 android:layout_marginBottom="@{viewModel.fullScreenMode || viewModel.pipMode ? @dimen/zero : @dimen/call_main_actions_menu_margin, default=@dimen/call_main_actions_menu_margin}"
                 android:layout_marginTop="@{viewModel.fullScreenMode || viewModel.pipMode ? @dimen/zero : @dimen/call_top_bar_info_height, default=@dimen/call_top_bar_info_height}"
                 android:onClick="@{() -> viewModel.toggleFullScreen()}"
-                android:visibility="@{conferenceViewModel.participantDevices.size() > 1 ? View.VISIBLE : View.GONE, default=gone}"
+                android:visibility="@{conferenceViewModel.conferenceLayout == ConferenceModel.GRID_LAYOUT &amp;&amp; conferenceViewModel.participantDevices.size() > 1 ? View.VISIBLE : View.GONE, default=gone}"
                 entries="@{conferenceViewModel.participantDevices}"
                 layout="@{@layout/call_conference_grid_cell}"
                 app:layout_constraintTop_toTopOf="parent"
@@ -110,6 +111,53 @@
                 app:layout_constraintStart_toStartOf="parent"
                 app:layout_constraintEnd_toEndOf="parent" />
 
+            <org.linphone.ui.call.view.RoundCornersTextureView
+                android:id="@+id/active_speaker_surface"
+                android:layout_width="0dp"
+                android:layout_height="0dp"
+                android:layout_marginBottom="@{viewModel.fullScreenMode || viewModel.pipMode || viewModel.halfOpenedFolded ? @dimen/zero : @dimen/call_main_actions_menu_margin, default=@dimen/call_main_actions_menu_margin}"
+                android:layout_marginTop="@{viewModel.fullScreenMode || viewModel.pipMode || viewModel.halfOpenedFolded ? @dimen/zero : @dimen/call_top_bar_info_height, default=@dimen/call_top_bar_info_height}"
+                android:onClick="@{() -> viewModel.toggleFullScreen()}"
+                android:visibility="@{conferenceViewModel.conferenceLayout == ConferenceModel.ACTIVE_SPEAKER_LAYOUT &amp;&amp; conferenceViewModel.participantDevices.size() > 1 ? View.VISIBLE : View.GONE, default=gone}"
+                app:layout_constraintTop_toTopOf="parent"
+                app:layout_constraintBottom_toBottomOf="parent"
+                app:layout_constraintStart_toStartOf="parent"
+                app:layout_constraintEnd_toEndOf="parent"/>
+
+            <androidx.appcompat.widget.AppCompatTextView
+                style="@style/default_text_style_500"
+                android:id="@+id/active_speaker_name"
+                android:layout_width="wrap_content"
+                android:layout_height="wrap_content"
+                android:layout_marginStart="10dp"
+                android:layout_marginBottom="10dp"
+                android:text="@{conferenceViewModel.activeSpeakerName, default=`John Doe`}"
+                android:textColor="@color/white"
+                android:textSize="20sp"
+                app:layout_constraintBottom_toTopOf="@id/active_speaker_miniatures_layout"
+                app:layout_constraintStart_toStartOf="parent" />
+
+            <HorizontalScrollView
+                android:id="@+id/active_speaker_miniatures_layout"
+                android:layout_width="0dp"
+                android:layout_height="wrap_content"
+                android:layout_marginBottom="@{viewModel.fullScreenMode || viewModel.pipMode ? @dimen/zero : @dimen/call_main_actions_menu_margin, default=@dimen/call_main_actions_menu_margin}"
+                android:onClick="@{() -> viewModel.toggleFullScreen()}"
+                android:visibility="@{conferenceViewModel.conferenceLayout == ConferenceModel.ACTIVE_SPEAKER_LAYOUT &amp;&amp; conferenceViewModel.participantDevices.size() > 1 ? View.VISIBLE : View.GONE, default=gone}"
+                app:layout_constraintBottom_toBottomOf="parent"
+                app:layout_constraintStart_toStartOf="parent"
+                app:layout_constraintEnd_toEndOf="parent">
+
+                <LinearLayout
+                    android:layout_width="wrap_content"
+                    android:layout_height="wrap_content"
+                    android:layout_marginBottom="8dp"
+                    android:orientation="horizontal"
+                    entries="@{conferenceViewModel.participantDevices}"
+                    layout="@{@layout/call_conference_active_speaker_cell}"/>
+
+            </HorizontalScrollView>
+
             <androidx.constraintlayout.widget.Group
                 android:id="@+id/header_info_visibility"
                 android:layout_width="wrap_content"
diff --git a/app/src/main/res/layout/call_conference_active_speaker_cell.xml b/app/src/main/res/layout/call_conference_active_speaker_cell.xml
new file mode 100644
index 000000000..29a2fe5db
--- /dev/null
+++ b/app/src/main/res/layout/call_conference_active_speaker_cell.xml
@@ -0,0 +1,97 @@
+<?xml version="1.0" encoding="utf-8"?>
+<layout xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:app="http://schemas.android.com/apk/res-auto">
+
+    <data>
+        <import type="android.view.View" />
+        <import type="org.linphone.core.ChatRoom.SecurityLevel" />
+        <variable
+            name="model"
+            type="org.linphone.ui.call.model.ConferenceParticipantDeviceModel" />
+    </data>
+
+    <androidx.constraintlayout.widget.ConstraintLayout
+        android:layout_width="@dimen/call_conference_active_speaker_miniature_size"
+        android:layout_height="@dimen/call_conference_active_speaker_miniature_size"
+        android:padding="2dp">
+
+        <ImageView
+            android:id="@+id/participant_device_background"
+            android:layout_width="match_parent"
+            android:layout_height="match_parent"
+            android:background="@drawable/shape_round_in_call_gray_background" />
+
+        <com.google.android.material.imageview.ShapeableImageView
+            style="@style/avatar_imageview"
+            android:id="@+id/avatar"
+            android:layout_width="0dp"
+            android:layout_height="0dp"
+            android:layout_marginTop="5dp"
+            android:visibility="@{model.isSendingVideo ? View.GONE : View.VISIBLE}"
+            coilCallAvatar="@{model.avatarModel}"
+            app:layout_constraintDimensionRatio="1:1"
+            app:layout_constraintWidth_max="@dimen/avatar_in_active_speaker_miniature_conference_call_size"
+            app:layout_constraintHeight_max="@dimen/avatar_in_active_speaker_miniature_conference_call_size"
+            app:layout_constraintEnd_toEndOf="parent"
+            app:layout_constraintStart_toStartOf="parent"
+            app:layout_constraintTop_toTopOf="parent"
+            app:layout_constraintBottom_toBottomOf="parent"/>
+
+        <ImageView
+            android:id="@+id/trust_badge"
+            android:layout_width="@dimen/avatar_presence_badge_in_active_speaker_miniature_conference_call_size"
+            android:layout_height="@dimen/avatar_presence_badge_in_active_speaker_miniature_conference_call_size"
+            android:src="@{model.avatarModel.trust == SecurityLevel.Safe ? @drawable/trusted : @drawable/not_trusted, default=@drawable/trusted}"
+            android:visibility="@{model.avatarModel.trust == SecurityLevel.Safe || model.avatarModel.trust == SecurityLevel.Unsafe ? View.VISIBLE : View.GONE}"
+            app:layout_constraintStart_toStartOf="@id/avatar"
+            app:layout_constraintBottom_toBottomOf="@id/avatar"/>
+
+        <org.linphone.ui.call.view.RoundCornersTextureView
+            android:id="@+id/participant_video_surface"
+            android:layout_width="0dp"
+            android:layout_height="0dp"
+            app:alignTopRight="false"
+            app:displayMode="hybrid"
+            participantTextureView="@{model}"
+            android:visibility="@{model.isSendingVideo ? View.VISIBLE : View.GONE, default=gone}"
+            app:layout_constraintBottom_toBottomOf="parent"
+            app:layout_constraintEnd_toEndOf="parent"
+            app:layout_constraintStart_toStartOf="parent"
+            app:layout_constraintTop_toTopOf="parent" />
+
+        <ImageView
+            android:id="@+id/muted"
+            android:layout_width="@dimen/small_icon_size"
+            android:layout_height="@dimen/small_icon_size"
+            android:layout_marginTop="10dp"
+            android:layout_marginEnd="10dp"
+            android:padding="2dp"
+            android:src="@drawable/microphone_slash"
+            android:background="@drawable/shape_circle_white_call_background"
+            android:visibility="@{model.isMuted ? View.VISIBLE : View.GONE}"
+            app:layout_constraintTop_toTopOf="parent"
+            app:layout_constraintEnd_toEndOf="parent" />
+
+        <androidx.appcompat.widget.AppCompatTextView
+            style="@style/default_text_style_500"
+            android:id="@+id/name"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:layout_marginStart="12dp"
+            android:layout_marginBottom="8dp"
+            android:text="@{model.avatarModel.name, default=`John Doe`}"
+            android:textColor="@color/white"
+            android:textSize="11sp"
+            app:layout_constraintBottom_toBottomOf="parent"
+            app:layout_constraintStart_toStartOf="parent" />
+
+        <ImageView
+            android:id="@+id/speaking"
+            android:layout_width="match_parent"
+            android:layout_height="match_parent"
+            android:src="@drawable/shape_squircle_main2_200_call_border"
+            android:visibility="@{model.isSpeaking ? View.VISIBLE : View.GONE}" />
+
+    </androidx.constraintlayout.widget.ConstraintLayout>
+
+</layout>
\ No newline at end of file
diff --git a/app/src/main/res/layout/call_conference_grid_cell.xml b/app/src/main/res/layout/call_conference_grid_cell.xml
index c1c9d9f37..603c32995 100644
--- a/app/src/main/res/layout/call_conference_grid_cell.xml
+++ b/app/src/main/res/layout/call_conference_grid_cell.xml
@@ -28,6 +28,7 @@
             android:layout_width="0dp"
             android:layout_height="0dp"
             android:layout_marginTop="5dp"
+            android:visibility="@{model.isSendingVideo ? View.GONE : View.VISIBLE}"
             coilCallAvatar="@{model.avatarModel}"
             app:layout_constraintDimensionRatio="1:1"
             app:layout_constraintWidth_max="@dimen/avatar_in_call_size"
diff --git a/app/src/main/res/values/dimen.xml b/app/src/main/res/values/dimen.xml
index 51f617a94..5d123a909 100644
--- a/app/src/main/res/values/dimen.xml
+++ b/app/src/main/res/values/dimen.xml
@@ -17,6 +17,7 @@
     <dimen name="avatar_favorite_list_cell_size">50dp</dimen>
     <dimen name="avatar_big_size">100dp</dimen>
     <dimen name="avatar_in_call_size">120dp</dimen>
+    <dimen name="avatar_in_active_speaker_miniature_conference_call_size">50dp</dimen>
 
     <dimen name="avatar_bubble_presence_badge_size">8dp</dimen>
     <dimen name="avatar_presence_badge_size">12dp</dimen>
@@ -26,6 +27,7 @@
     <dimen name="avatar_presence_badge_big_size">22dp</dimen>
     <dimen name="avatar_presence_badge_big_padding">3dp</dimen>
     <dimen name="avatar_presence_badge_big_end_margin">5dp</dimen>
+    <dimen name="avatar_presence_badge_in_active_speaker_miniature_conference_call_size">14dp</dimen>
 
     <dimen name="avatar_trust_border_width">2dp</dimen>
 
@@ -50,6 +52,8 @@
     <dimen name="call_button_icon_padding">15dp</dimen>
     <dimen name="call_extra_button_top_margin">30dp</dimen>
 
+    <dimen name="call_conference_active_speaker_miniature_size">120dp</dimen>
+
     <dimen name="meeting_list_decoration_height">66dp</dimen>
 
     <dimen name="toast_max_width">400dp</dimen>