diff --git a/app/src/main/java/org/linphone/ui/main/chat/viewmodel/ConversationViewModel.kt b/app/src/main/java/org/linphone/ui/main/chat/viewmodel/ConversationViewModel.kt
index 366234de4..3b9fa4c3a 100644
--- a/app/src/main/java/org/linphone/ui/main/chat/viewmodel/ConversationViewModel.kt
+++ b/app/src/main/java/org/linphone/ui/main/chat/viewmodel/ConversationViewModel.kt
@@ -26,6 +26,8 @@ import androidx.lifecycle.ViewModel
 import org.linphone.LinphoneApplication.Companion.coreContext
 import org.linphone.core.Address
 import org.linphone.core.ChatRoom
+import org.linphone.core.ChatRoomListenerStub
+import org.linphone.core.EventLog
 import org.linphone.core.Factory
 import org.linphone.core.Friend
 import org.linphone.core.tools.Log
@@ -51,19 +53,41 @@ class ConversationViewModel @UiThread constructor() : ViewModel() {
 
     val subject = MutableLiveData<String>()
 
+    val isReadOnly = MutableLiveData<Boolean>()
+
+    val textToSend = MutableLiveData<String>()
+
     val chatRoomFoundEvent = MutableLiveData<Event<Boolean>>()
 
     private lateinit var chatRoom: ChatRoom
 
     private val avatarsMap = hashMapOf<String, ContactAvatarModel>()
 
-    init {
+    private val chatRoomListener = object : ChatRoomListenerStub() {
+        override fun onChatMessageSending(chatRoom: ChatRoom, eventLog: EventLog) {
+            val message = eventLog.chatMessage
+            Log.i("$TAG Chat message [$message] is being sent")
+
+            val list = arrayListOf<EventLogModel>()
+            list.addAll(events.value.orEmpty())
+
+            val avatarModel = getAvatarModelForAddress(message?.localAddress)
+            list.add(EventLogModel(eventLog, avatarModel))
+
+            events.postValue(list)
+        }
+
+        override fun onChatMessageSent(chatRoom: ChatRoom, eventLog: EventLog) {
+            val message = eventLog.chatMessage
+            Log.i("$TAG Chat message [$message] has been sent")
+        }
     }
 
     override fun onCleared() {
         super.onCleared()
 
         coreContext.postOnCoreThread {
+            chatRoom.removeListener(chatRoomListener)
             avatarsMap.values.forEach(ContactAvatarModel::destroy)
         }
     }
@@ -88,6 +112,8 @@ class ConversationViewModel @UiThread constructor() : ViewModel() {
                 )
                 if (found != null) {
                     chatRoom = found
+                    chatRoom.addListener(chatRoomListener)
+
                     configureChatRoom()
                     chatRoomFoundEvent.postValue(Event(true))
                 } else {
@@ -101,6 +127,24 @@ class ConversationViewModel @UiThread constructor() : ViewModel() {
         }
     }
 
+    @UiThread
+    fun sendMessage() {
+        coreContext.postOnCoreThread { core ->
+            val message = chatRoom.createEmptyMessage()
+
+            val toSend = textToSend.value.orEmpty().trim()
+            if (toSend.isNotEmpty()) {
+                message.addUtf8TextContent(toSend)
+            }
+
+            if (message.contents.isNotEmpty()) {
+                Log.i("$TAG Sending message")
+                message.send()
+            }
+            textToSend.postValue("")
+        }
+    }
+
     @WorkerThread
     private fun configureChatRoom() {
         isGroup.postValue(
@@ -108,6 +152,14 @@ class ConversationViewModel @UiThread constructor() : ViewModel() {
                 ChatRoom.Capabilities.Conference.toInt()
             )
         )
+
+        val empty = chatRoom.hasCapability(ChatRoom.Capabilities.Conference.toInt()) && chatRoom.participants.isEmpty()
+        val readOnly = chatRoom.isReadOnly || empty
+        isReadOnly.postValue(readOnly)
+        if (readOnly) {
+            Log.w("$TAG Chat room with subject [${chatRoom.subject}] is read only!")
+        }
+
         subject.postValue(chatRoom.subject)
 
         val friends = arrayListOf<Friend>()
diff --git a/app/src/main/res/color/icon_color_selector.xml b/app/src/main/res/color/icon_color_selector.xml
new file mode 100644
index 000000000..52a1d4d2d
--- /dev/null
+++ b/app/src/main/res/color/icon_color_selector.xml
@@ -0,0 +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_main2_200"/>
+    <item android:state_pressed="true" android:color="@color/orange_main_500"/>
+    <item android:color="@color/gray_main2_500"/>
+</selector>
\ No newline at end of file
diff --git a/app/src/main/res/color/icon_primary_color_selector.xml b/app/src/main/res/color/icon_primary_color_selector.xml
new file mode 100644
index 000000000..2f6a070af
--- /dev/null
+++ b/app/src/main/res/color/icon_primary_color_selector.xml
@@ -0,0 +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_main2_200"/>
+    <item android:state_pressed="true" android:color="@color/gray_main2_500"/>
+    <item android:color="@color/orange_main_500"/>
+</selector>
\ No newline at end of file
diff --git a/app/src/main/res/layout/chat_bubble_outgoing.xml b/app/src/main/res/layout/chat_bubble_outgoing.xml
index 3a0ea9338..b14b2a245 100644
--- a/app/src/main/res/layout/chat_bubble_outgoing.xml
+++ b/app/src/main/res/layout/chat_bubble_outgoing.xml
@@ -5,6 +5,7 @@
 
     <data>
         <import type="android.view.View" />
+        <import type="org.linphone.core.ChatMessage.State" />
         <variable
             name="onLongClickListener"
             type="View.OnLongClickListener" />
@@ -26,19 +27,87 @@
         android:layout_marginTop="@{isGroupedWithPreviousOne ? @dimen/chat_bubble_grouped_top_margin : @dimen/chat_bubble_top_margin, default=@dimen/chat_bubble_top_margin}"
         android:layout_marginEnd="16dp">
 
-        <org.linphone.ui.main.chat.view.ChatBubbleTextView
-            style="@style/default_text_style"
+        <ImageView
+            android:id="@+id/background"
+            android:layout_width="0dp"
+            android:layout_height="0dp"
+            android:src="@{isGroupedWithPreviousOne ? @drawable/shape_chat_bubble_outgoing_full : @drawable/shape_chat_bubble_outgoing_first, default=@drawable/shape_chat_bubble_outgoing_first}"
+            app:layout_constraintTop_toTopOf="parent"
+            app:layout_constraintBottom_toBottomOf="@id/bubble_bottom_barrier"
+            app:layout_constraintStart_toStartOf="@id/bubble_start_barrier"
+            app:layout_constraintEnd_toEndOf="parent"/>
+
+        <androidx.constraintlayout.widget.Barrier
+            android:id="@+id/bubble_start_barrier"
             android:layout_width="wrap_content"
             android:layout_height="wrap_content"
-            android:text="@{model.text, default=`Lorem ipsum dolor sit amet`}"
+            app:barrierDirection="start"
+            app:barrierMargin="-18dp"
+            app:constraint_referenced_ids="text_message, date_time"/>
+
+        <androidx.constraintlayout.widget.Barrier
+            android:id="@+id/bubble_bottom_barrier"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            app:barrierDirection="bottom"
+            app:constraint_referenced_ids="text_bottom_anchor, delivery_status"/>
+
+        <androidx.appcompat.widget.AppCompatTextView
+            style="@style/default_text_style"
+            android:id="@+id/text_message"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:layout_marginStart="18dp"
+            android:layout_marginTop="12dp"
+            android:layout_marginEnd="18dp"
+            android:text="@{model.text, default=`Lorem ipsum`}"
             android:textSize="14sp"
             android:textColor="@color/gray_main2_700"
-            android:gravity="center_vertical|end"
-            android:padding="16dp"
-            app:layout_constraintTop_toTopOf="parent"
-            app:layout_constraintBottom_toBottomOf="parent"
+            android:gravity="center_vertical|start"
+            app:layout_constrainedWidth="true"
+            app:layout_constraintHorizontal_bias="1"
+            app:layout_constraintTop_toTopOf="@id/background"
+            app:layout_constraintStart_toStartOf="parent"
+            app:layout_constraintEnd_toEndOf="@id/background"/>
+
+        <View
+            android:id="@+id/text_bottom_anchor"
+            android:layout_width="1dp"
+            android:layout_height="1dp"
+            android:layout_marginTop="12dp"
+            app:layout_constraintTop_toBottomOf="@id/text_message"
+            app:layout_constraintStart_toStartOf="@id/text_message"/>
+
+        <androidx.appcompat.widget.AppCompatTextView
+            style="@style/default_text_style_300"
+            android:id="@+id/date_time"
+            android:onClick="@{() -> model.showDeliveryInfo()}"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:layout_marginTop="5dp"
+            android:layout_marginBottom="5dp"
+            android:layout_marginEnd="5dp"
+            android:text="@{model.time, default=`13:40`}"
+            android:textSize="12sp"
+            android:visibility="@{isLastOneOfGroup ? View.VISIBLE : View.GONE}"
+            app:layout_constraintTop_toBottomOf="@id/text_message"
+            app:layout_constraintEnd_toStartOf="@id/delivery_status"
+            app:layout_constraintBottom_toBottomOf="@id/background"/>
+
+        <ImageView
+            style="@style/default_text_style_300"
+            android:id="@+id/delivery_status"
+            android:onClick="@{() -> model.showDeliveryInfo()}"
+            android:layout_width="@dimen/small_icon_size"
+            android:layout_height="@dimen/small_icon_size"
+            android:layout_marginEnd="18dp"
+            android:layout_marginTop="2dp"
+            android:src="@{model.state == State.Displayed ? @drawable/checks : model.state == State.DeliveredToUser ? @drawable/check : model.state == State.Delivered ? @drawable/envelope_simple : model.state == State.NotDelivered ? @drawable/warning_circle : @drawable/in_progress, default=@drawable/in_progress}"
+            android:visibility="@{isLastOneOfGroup ? View.VISIBLE : View.GONE}"
+            app:layout_constraintTop_toTopOf="@id/date_time"
             app:layout_constraintEnd_toEndOf="parent"
-            android:background="@{isGroupedWithPreviousOne ? @drawable/shape_chat_bubble_outgoing_full : @drawable/shape_chat_bubble_outgoing_first, default=@drawable/shape_chat_bubble_outgoing_first}"/>
+            app:layout_constraintBottom_toBottomOf="@id/date_time"
+            app:tint="@color/orange_main_500" />
 
     </androidx.constraintlayout.widget.ConstraintLayout>
 
diff --git a/app/src/main/res/layout/chat_conversation_fragment.xml b/app/src/main/res/layout/chat_conversation_fragment.xml
index 065ccba3a..df957da97 100644
--- a/app/src/main/res/layout/chat_conversation_fragment.xml
+++ b/app/src/main/res/layout/chat_conversation_fragment.xml
@@ -186,6 +186,8 @@
         <include
             android:id="@+id/send_area"
             openEmojiPickerClickListener="@{openEmojiPickerClickListener}"
+            viewModel="@{viewModel}"
+            android:visibility="@{viewModel.isReadOnly ? View.GONE : View.VISIBLE}"
             layout="@layout/chat_conversation_send_area"/>
 
     </androidx.coordinatorlayout.widget.CoordinatorLayout>
diff --git a/app/src/main/res/layout/chat_conversation_send_area.xml b/app/src/main/res/layout/chat_conversation_send_area.xml
index f94c6cd5d..c6e326d34 100644
--- a/app/src/main/res/layout/chat_conversation_send_area.xml
+++ b/app/src/main/res/layout/chat_conversation_send_area.xml
@@ -7,6 +7,9 @@
         <variable
             name="openEmojiPickerClickListener"
             type="View.OnClickListener" />
+        <variable
+            name="viewModel"
+            type="org.linphone.ui.main.chat.viewmodel.ConversationViewModel" />
     </data>
 
     <androidx.constraintlayout.widget.ConstraintLayout
@@ -24,6 +27,7 @@
             android:layout_height="@dimen/icon_size"
             android:layout_marginStart="16dp"
             android:src="@drawable/smiley"
+            app:tint="@color/icon_color_selector"
             app:layout_constraintTop_toTopOf="@id/message_area_background"
             app:layout_constraintBottom_toBottomOf="@id/message_area_background"
             app:layout_constraintStart_toStartOf="parent" />
@@ -35,6 +39,7 @@
             android:layout_marginStart="16dp"
             android:layout_marginEnd="16dp"
             android:src="@drawable/paperclip"
+            app:tint="@color/icon_color_selector"
             app:layout_constraintTop_toTopOf="@id/message_area_background"
             app:layout_constraintBottom_toBottomOf="@id/message_area_background"
             app:layout_constraintStart_toEndOf="@id/emoji_picker"
@@ -61,10 +66,12 @@
             android:layout_marginBottom="16dp"
             android:minHeight="48dp"
             android:background="@color/transparent_color"
+            android:text="@={viewModel.textToSend}"
             android:textSize="14sp"
             android:textColorHint="@color/gray_main2_400"
             android:maxLines="3"
             android:hint="@string/conversation_text_field_hint"
+            android:inputType="text"
             app:layout_constraintStart_toStartOf="@id/message_area_background"
             app:layout_constraintEnd_toStartOf="@id/send_barrier"
             app:layout_constraintBottom_toBottomOf="parent"/>
@@ -83,17 +90,20 @@
             android:layout_marginEnd="12dp"
             android:src="@drawable/microphone"
             android:visibility="gone"
+            app:tint="@color/icon_color_selector"
             app:layout_constraintTop_toTopOf="@id/message_area_background"
             app:layout_constraintBottom_toBottomOf="@id/message_area_background"
             app:layout_constraintEnd_toEndOf="@id/message_area_background" />
 
         <ImageView
             android:id="@+id/send_message"
+            android:onClick="@{() -> viewModel.sendMessage()}"
             android:layout_width="@dimen/icon_size"
             android:layout_height="@dimen/icon_size"
             android:layout_marginEnd="12dp"
             android:src="@drawable/paper_plane_tilt"
-            app:tint="@color/orange_main_500"
+            android:enabled="@{viewModel.textToSend.length() > 0}"
+            app:tint="@color/icon_primary_color_selector"
             app:layout_constraintTop_toTopOf="@id/message_area_background"
             app:layout_constraintBottom_toBottomOf="@id/message_area_background"
             app:layout_constraintEnd_toEndOf="@id/message_area_background" />