diff --git a/app/src/main/java/org/linphone/ui/call/conference/fragment/ActiveConferenceCallFragment.kt b/app/src/main/java/org/linphone/ui/call/conference/fragment/ActiveConferenceCallFragment.kt
index ca7fb648b..017321f4f 100644
--- a/app/src/main/java/org/linphone/ui/call/conference/fragment/ActiveConferenceCallFragment.kt
+++ b/app/src/main/java/org/linphone/ui/call/conference/fragment/ActiveConferenceCallFragment.kt
@@ -237,6 +237,24 @@ class ActiveConferenceCallFragment : GenericCallFragment() {
             }
         }
 
+        callViewModel.conferenceModel.goToConversationEvent.observe(viewLifecycleOwner) {
+            it.consume { pair ->
+                if (findNavController().currentDestination?.id == R.id.activeConferenceCallFragment) {
+                    val localSipUri = pair.first
+                    val remoteSipUri = pair.second
+                    Log.i(
+                        "$TAG Display conversation with local SIP URI [$localSipUri] and remote SIP URI [$remoteSipUri]"
+                    )
+                    val action =
+                        ActiveConferenceCallFragmentDirections.actionActiveConferenceCallFragmentToInCallConversationFragment(
+                            localSipUri,
+                            remoteSipUri
+                        )
+                    findNavController().navigate(action)
+                }
+            }
+        }
+
         callViewModel.goToCallEvent.observe(viewLifecycleOwner) {
             it.consume {
                 if (findNavController().currentDestination?.id == R.id.activeConferenceCallFragment) {
diff --git a/app/src/main/java/org/linphone/ui/call/conference/viewmodel/ConferenceViewModel.kt b/app/src/main/java/org/linphone/ui/call/conference/viewmodel/ConferenceViewModel.kt
index 6950789ba..aad1d7c45 100644
--- a/app/src/main/java/org/linphone/ui/call/conference/viewmodel/ConferenceViewModel.kt
+++ b/app/src/main/java/org/linphone/ui/call/conference/viewmodel/ConferenceViewModel.kt
@@ -28,6 +28,7 @@ import org.linphone.core.Address
 import org.linphone.core.Call
 import org.linphone.core.Conference
 import org.linphone.core.ConferenceListenerStub
+import org.linphone.core.ConferenceParams
 import org.linphone.core.MediaDirection
 import org.linphone.core.Participant
 import org.linphone.core.ParticipantDevice
@@ -73,6 +74,8 @@ class ConferenceViewModel @UiThread constructor() : GenericViewModel() {
 
     val isMeAdmin = MutableLiveData<Boolean>()
 
+    val isConversationAvailable = MutableLiveData<Boolean>()
+
     val firstParticipantOtherThanOurselvesJoinedEvent: MutableLiveData<Event<Boolean>> by lazy {
         MutableLiveData<Event<Boolean>>()
     }
@@ -85,6 +88,10 @@ class ConferenceViewModel @UiThread constructor() : GenericViewModel() {
         MutableLiveData<Event<Pair<String, Participant>>>()
     }
 
+    val goToConversationEvent: MutableLiveData<Event<Pair<String, String>>> by lazy {
+        MutableLiveData<Event<Pair<String, String>>>()
+    }
+
     private lateinit var conference: Conference
 
     private val conferenceListener = object : ConferenceListenerStub() {
@@ -248,6 +255,7 @@ class ConferenceViewModel @UiThread constructor() : GenericViewModel() {
 
     init {
         isPaused.value = false
+        isConversationAvailable.value = false
     }
 
     @WorkerThread
@@ -282,6 +290,9 @@ class ConferenceViewModel @UiThread constructor() : GenericViewModel() {
         val screenSharing = conference.screenSharingParticipant != null
         isScreenSharing.postValue(screenSharing)
 
+        val chatEnabled = conference.currentParams.isChatEnabled
+        isConversationAvailable.postValue(chatEnabled)
+
         val confSubject = conference.subject.orEmpty()
         Log.i(
             "$TAG Configuring conference with subject [$confSubject] from call [${call.callLog.callId}]"
@@ -307,6 +318,28 @@ class ConferenceViewModel @UiThread constructor() : GenericViewModel() {
         }
     }
 
+    @UiThread
+    fun goToConversation() {
+        coreContext.postOnCoreThread { core ->
+            Log.i("$TAG Navigating to conference's conversation")
+            val chatParams: ConferenceParams? = null
+            val address = conference.conferenceAddress
+            val chatRoom = core.searchChatRoom(chatParams, address, null, null)
+            if (chatRoom != null) {
+                goToConversationEvent.postValue(
+                    Event(
+                        Pair(
+                            chatRoom.localAddress.asStringUriOnly(),
+                            chatRoom.peerAddress.asStringUriOnly()
+                        )
+                    )
+                )
+            } else {
+                Log.e("$TAG Couldn't find chat room for address [${address?.asStringUriOnly()}]")
+            }
+        }
+    }
+
     @UiThread
     fun showLayoutMenu() {
         showLayoutMenuEvent.value = Event(true)
diff --git a/app/src/main/java/org/linphone/ui/call/fragment/ConversationFragment.kt b/app/src/main/java/org/linphone/ui/call/fragment/ConversationFragment.kt
index 47e0075e2..fe57f972b 100644
--- a/app/src/main/java/org/linphone/ui/call/fragment/ConversationFragment.kt
+++ b/app/src/main/java/org/linphone/ui/call/fragment/ConversationFragment.kt
@@ -22,6 +22,7 @@ package org.linphone.ui.call.fragment
 import android.os.Bundle
 import android.view.View
 import androidx.navigation.fragment.findNavController
+import org.linphone.core.tools.Log
 import org.linphone.ui.main.chat.fragment.ConversationFragment
 
 class ConversationFragment : ConversationFragment() {
@@ -32,6 +33,7 @@ class ConversationFragment : ConversationFragment() {
     override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
         super.onViewCreated(view, savedInstanceState)
 
+        Log.i("$TAG Creating an in-call ConversationFragment")
         sendMessageViewModel.isInCallConversation.value = true
         viewModel.isInCallConversation.value = true
 
diff --git a/app/src/main/res/color/in_call_button_tint_color.xml b/app/src/main/res/color/in_call_button_tint_color.xml
index e1492132e..1eda9d9d7 100644
--- a/app/src/main/res/color/in_call_button_tint_color.xml
+++ b/app/src/main/res/color/in_call_button_tint_color.xml
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="utf-8"?>
 <selector xmlns:android="http://schemas.android.com/apk/res/android">
-    <item android:state_enabled="false" android:color="@color/gray_400" />
+    <item android:state_enabled="false" android:color="@color/gray_500" />
     <item android:state_pressed="true" android:color="@color/white" />
     <item android:color="@color/white"/>
 </selector>
diff --git a/app/src/main/res/layout-land/call_conference_actions_bottom_sheet.xml b/app/src/main/res/layout-land/call_conference_actions_bottom_sheet.xml
index 77e4e6e41..2c1664ca6 100644
--- a/app/src/main/res/layout-land/call_conference_actions_bottom_sheet.xml
+++ b/app/src/main/res/layout-land/call_conference_actions_bottom_sheet.xml
@@ -120,19 +120,39 @@
 
         <ImageView
             android:id="@+id/chat"
+            android:onClick="@{() -> viewModel.conferenceModel.goToConversation()}"
             android:layout_width="0dp"
             android:layout_height="@dimen/call_button_size"
             android:layout_marginTop="@dimen/call_extra_button_top_margin"
             android:padding="@dimen/call_button_icon_padding"
             android:src="@drawable/chat_teardrop_text"
+            android:enabled="@{viewModel.conferenceModel.isConversationAvailable}"
             android:contentDescription="@string/call_action_show_messages"
-            android:background="@drawable/shape_round_in_call_disabled_button_background"
-            app:tint="?attr/color_grey_500"
+            android:background="@drawable/in_call_button_background_red"
+            app:tint="@color/in_call_button_tint_color"
             app:layout_constraintDimensionRatio="1:1"
             app:layout_constraintTop_toBottomOf="@id/main_actions"
             app:layout_constraintStart_toStartOf="@id/chat_label"
             app:layout_constraintEnd_toEndOf="@id/chat_label"/>
 
+        <androidx.appcompat.widget.AppCompatTextView
+            style="@style/default_text_style"
+            android:id="@+id/unread_messages_count"
+            android:layout_width="24dp"
+            android:layout_height="24dp"
+            android:layout_marginStart="40dp"
+            android:layout_marginTop="25dp"
+            android:gravity="center"
+            android:background="@drawable/shape_red_round"
+            android:text="@{String.valueOf(viewModel.unreadMessagesCount), default=`1`}"
+            android:textColor="?attr/color_on_main"
+            android:textSize="13sp"
+            android:paddingBottom="2dp"
+            android:visibility="@{viewModel.unreadMessagesCount > 0 ? View.VISIBLE : View.GONE}"
+            app:layout_constraintTop_toBottomOf="@id/main_actions"
+            app:layout_constraintStart_toStartOf="@id/chat"
+            app:layout_constraintEnd_toEndOf="@id/chat"/>
+
         <ImageView
             android:id="@+id/pause_call"
             android:onClick="@{() -> viewModel.togglePause()}"
@@ -219,11 +239,12 @@
         <androidx.appcompat.widget.AppCompatTextView
             style="@style/in_call_extra_action_label_style"
             android:id="@+id/chat_label"
+            android:onClick="@{() -> viewModel.conferenceModel.goToConversation()}"
             android:layout_width="0dp"
             android:layout_height="wrap_content"
             android:paddingBottom="15dp"
             android:text="@string/call_action_show_messages"
-            android:enabled="false"
+            android:enabled="@{viewModel.conferenceModel.isConversationAvailable}"
             app:layout_constraintTop_toBottomOf="@id/chat"
             app:layout_constraintStart_toEndOf="@id/layout_label"
             app:layout_constraintEnd_toStartOf="@id/pause_call_label" />
diff --git a/app/src/main/res/layout/call_conference_actions_bottom_sheet.xml b/app/src/main/res/layout/call_conference_actions_bottom_sheet.xml
index 80940dd60..9901c51ff 100644
--- a/app/src/main/res/layout/call_conference_actions_bottom_sheet.xml
+++ b/app/src/main/res/layout/call_conference_actions_bottom_sheet.xml
@@ -120,19 +120,39 @@
 
         <ImageView
             android:id="@+id/chat"
+            android:onClick="@{() -> viewModel.conferenceModel.goToConversation()}"
             android:layout_width="0dp"
             android:layout_height="@dimen/call_button_size"
             android:layout_marginTop="@dimen/call_extra_button_top_margin"
             android:padding="@dimen/call_button_icon_padding"
             android:src="@drawable/chat_teardrop_text"
+            android:enabled="@{viewModel.conferenceModel.isConversationAvailable}"
             android:contentDescription="@string/call_action_show_messages"
-            android:background="@drawable/shape_round_in_call_disabled_button_background"
-            app:tint="?attr/color_grey_500"
+            android:background="@drawable/in_call_button_background_red"
+            app:tint="@color/in_call_button_tint_color"
             app:layout_constraintDimensionRatio="1:1"
             app:layout_constraintTop_toBottomOf="@id/screen_sharing_label"
             app:layout_constraintStart_toStartOf="@id/screen_sharing"
             app:layout_constraintEnd_toEndOf="@id/screen_sharing"/>
 
+        <androidx.appcompat.widget.AppCompatTextView
+            style="@style/default_text_style"
+            android:id="@+id/unread_messages_count"
+            android:layout_width="24dp"
+            android:layout_height="24dp"
+            android:layout_marginStart="40dp"
+            android:layout_marginTop="25dp"
+            android:gravity="center"
+            android:background="@drawable/shape_red_round"
+            android:text="@{String.valueOf(viewModel.unreadMessagesCount), default=`1`}"
+            android:textColor="?attr/color_on_main"
+            android:textSize="13sp"
+            android:paddingBottom="2dp"
+            android:visibility="@{viewModel.unreadMessagesCount > 0 ? View.VISIBLE : View.GONE}"
+            app:layout_constraintTop_toBottomOf="@id/screen_sharing_label"
+            app:layout_constraintStart_toStartOf="@id/chat"
+            app:layout_constraintEnd_toEndOf="@id/chat"/>
+
         <ImageView
             android:id="@+id/pause_call"
             android:onClick="@{() -> viewModel.togglePause()}"
@@ -215,11 +235,12 @@
         <androidx.appcompat.widget.AppCompatTextView
             style="@style/in_call_extra_action_label_style"
             android:id="@+id/chat_label"
+            android:onClick="@{() -> viewModel.conferenceModel.goToConversation()}"
             android:layout_width="0dp"
             android:layout_height="wrap_content"
             android:paddingBottom="15dp"
             android:text="@string/call_action_show_messages"
-            android:enabled="false"
+            android:enabled="@{viewModel.conferenceModel.isConversationAvailable}"
             app:layout_constraintTop_toBottomOf="@id/chat"
             app:layout_constraintStart_toStartOf="@id/screen_sharing_label"
             app:layout_constraintEnd_toEndOf="@id/screen_sharing_label" />
diff --git a/app/src/main/res/navigation/call_nav_graph.xml b/app/src/main/res/navigation/call_nav_graph.xml
index 15ed70513..f72db9565 100644
--- a/app/src/main/res/navigation/call_nav_graph.xml
+++ b/app/src/main/res/navigation/call_nav_graph.xml
@@ -158,6 +158,12 @@
             app:enterAnim="@anim/slide_in"
             app:popExitAnim="@anim/slide_out"
             app:launchSingleTop="true" />
+        <action
+            android:id="@+id/action_activeConferenceCallFragment_to_inCallConversationFragment"
+            app:destination="@id/inCallConversationFragment"
+            app:enterAnim="@anim/slide_in"
+            app:popExitAnim="@anim/slide_out"
+            app:launchSingleTop="true" />
     </fragment>
 
     <action android:id="@+id/action_global_activeConferenceCallFragment"