diff --git a/app/src/main/java/org/linphone/contacts/ContactsManager.kt b/app/src/main/java/org/linphone/contacts/ContactsManager.kt
index 852c4d3f0..3e29dd00d 100644
--- a/app/src/main/java/org/linphone/contacts/ContactsManager.kt
+++ b/app/src/main/java/org/linphone/contacts/ContactsManager.kt
@@ -22,9 +22,13 @@ package org.linphone.contacts
 import androidx.loader.app.LoaderManager
 import org.linphone.LinphoneApplication.Companion.coreContext
 import org.linphone.core.Friend
+import org.linphone.core.tools.Log
 import org.linphone.ui.main.MainActivity
+import org.linphone.utils.LinphoneUtils
 
 class ContactsManager {
+    val localFriends = arrayListOf<Friend>()
+
     private val listeners = arrayListOf<ContactsListener>()
 
     fun loadContacts(activity: MainActivity) {
@@ -54,6 +58,8 @@ class ContactsManager {
     fun onContactsLoaded() {
         // UI thread
         coreContext.postOnCoreThread {
+            updateLocalContacts()
+
             for (listener in listeners) {
                 listener.onContactsLoaded()
             }
@@ -65,8 +71,28 @@ class ContactsManager {
         return coreContext.core.defaultFriendList?.findFriendByRefKey(id)
     }
 
+    fun updateLocalContacts() {
+        // Core thread
+        Log.i("[Contacts Manager] Updating local contact(s)")
+        localFriends.clear()
+
+        for (account in coreContext.core.accountList) {
+            val friend = coreContext.core.createFriend()
+            friend.name = LinphoneUtils.getDisplayName(account.params.identityAddress)
+
+            val address = account.params.identityAddress ?: continue
+            friend.address = address
+
+            Log.i(
+                "[Contacts Manager] Local contact created for account [${address.asString()}] and picture [${friend.photo}]"
+            )
+            localFriends.add(friend)
+        }
+    }
+
     fun onCoreStarted() {
         // Core thread
+        updateLocalContacts()
     }
 
     fun onCoreStopped() {
diff --git a/app/src/main/java/org/linphone/core/CorePreferences.kt b/app/src/main/java/org/linphone/core/CorePreferences.kt
index a730ebf3c..999c07bef 100644
--- a/app/src/main/java/org/linphone/core/CorePreferences.kt
+++ b/app/src/main/java/org/linphone/core/CorePreferences.kt
@@ -51,15 +51,22 @@ class CorePreferences constructor(private val context: Context) {
         editor.apply()
     }
 
+    val defaultDomain: String
+        get() = config.getString("app", "default_domain", "sip.linphone.org")!!
+
     val configPath: String
         get() = context.filesDir.absolutePath + "/.linphonerc"
 
     val factoryConfigPath: String
         get() = context.filesDir.absolutePath + "/linphonerc"
 
+    val linphoneDefaultValuesPath: String
+        get() = context.filesDir.absolutePath + "/assistant_linphone_default_values"
+
     fun copyAssetsFromPackage() {
         copy("linphonerc_default", configPath)
         copy("linphonerc_factory", factoryConfigPath, true)
+        copy("assistant_linphone_default_values", linphoneDefaultValuesPath, true)
     }
 
     private fun copy(from: String, to: String, overrideIfExists: Boolean = false) {
diff --git a/app/src/main/java/org/linphone/ui/assistant/fragment/LoginFragment.kt b/app/src/main/java/org/linphone/ui/assistant/fragment/LoginFragment.kt
index 296611d94..0ddb8a18f 100644
--- a/app/src/main/java/org/linphone/ui/assistant/fragment/LoginFragment.kt
+++ b/app/src/main/java/org/linphone/ui/assistant/fragment/LoginFragment.kt
@@ -24,12 +24,19 @@ import android.view.LayoutInflater
 import android.view.View
 import android.view.ViewGroup
 import androidx.navigation.fragment.findNavController
+import androidx.navigation.navGraphViewModels
+import org.linphone.R
 import org.linphone.databinding.AssistantLoginFragmentBinding
+import org.linphone.ui.assistant.viewmodel.AssistantViewModel
 import org.linphone.ui.main.fragment.GenericFragment
 
 class LoginFragment : GenericFragment() {
     private lateinit var binding: AssistantLoginFragmentBinding
 
+    private val viewModel: AssistantViewModel by navGraphViewModels(
+        R.id.loginFragment
+    )
+
     override fun onCreateView(
         inflater: LayoutInflater,
         container: ViewGroup?,
@@ -47,10 +54,17 @@ class LoginFragment : GenericFragment() {
         super.onViewCreated(view, savedInstanceState)
 
         binding.lifecycleOwner = viewLifecycleOwner
+        binding.viewModel = viewModel
 
         binding.setRegisterClickListener {
             val action = LoginFragmentDirections.actionLoginFragmentToRegisterFragment()
             findNavController().navigate(action)
         }
+
+        viewModel.accountLoggedInEvent.observe(viewLifecycleOwner) {
+            it.consume {
+                goBack()
+            }
+        }
     }
 }
diff --git a/app/src/main/java/org/linphone/ui/assistant/viewmodel/AssistantViewModel.kt b/app/src/main/java/org/linphone/ui/assistant/viewmodel/AssistantViewModel.kt
new file mode 100644
index 000000000..027afcc9c
--- /dev/null
+++ b/app/src/main/java/org/linphone/ui/assistant/viewmodel/AssistantViewModel.kt
@@ -0,0 +1,129 @@
+/*
+ * Copyright (c) 2010-2023 Belledonne Communications SARL.
+ *
+ * This file is part of linphone-android
+ * (see https://www.linphone.org).
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+package org.linphone.ui.assistant.viewmodel
+
+import androidx.lifecycle.MediatorLiveData
+import androidx.lifecycle.MutableLiveData
+import androidx.lifecycle.ViewModel
+import org.linphone.LinphoneApplication.Companion.coreContext
+import org.linphone.LinphoneApplication.Companion.corePreferences
+import org.linphone.core.Account
+import org.linphone.core.AuthInfo
+import org.linphone.core.Core
+import org.linphone.core.CoreListenerStub
+import org.linphone.core.Factory
+import org.linphone.core.RegistrationState
+import org.linphone.core.tools.Log
+import org.linphone.utils.Event
+
+class AssistantViewModel : ViewModel() {
+    companion object {
+        const val TAG = "[Assistant ViewModel]"
+    }
+    val username = MutableLiveData<String>()
+
+    val password = MutableLiveData<String>()
+
+    val loginEnabled = MediatorLiveData<Boolean>()
+
+    val registrationInProgress = MutableLiveData<Boolean>()
+
+    val accountLoggedInEvent = MutableLiveData<Event<Boolean>>()
+
+    private lateinit var newlyCreatedAuthInfo: AuthInfo
+    private lateinit var newlyCreatedAccount: Account
+
+    private val coreListener = object : CoreListenerStub() {
+        override fun onAccountRegistrationStateChanged(
+            core: Core,
+            account: Account,
+            state: RegistrationState?,
+            message: String
+        ) {
+            // Core thread
+            if (account == newlyCreatedAccount) {
+                Log.i("$TAG Newly created account registration state is [$state] ($message)")
+
+                if (state == RegistrationState.Ok) {
+                    registrationInProgress.postValue(false)
+                    core.removeListener(this)
+
+                    // Set new account as default
+                    core.defaultAccount = newlyCreatedAccount
+                    coreContext.contactsManager.updateLocalContacts()
+                    accountLoggedInEvent.postValue(Event(true))
+                } else if (state == RegistrationState.Failed) {
+                    registrationInProgress.postValue(false)
+                    core.removeListener(this)
+
+                    // TODO FIXME: show error
+
+                    Log.e("$TAG Account failed to REGISTER, removing it")
+                    core.removeAuthInfo(newlyCreatedAuthInfo)
+                    core.removeAccount(newlyCreatedAccount)
+                }
+            }
+        }
+    }
+
+    init {
+        registrationInProgress.value = false
+
+        loginEnabled.addSource(username) {
+            loginEnabled.value = isLoginButtonEnabled()
+        }
+        loginEnabled.addSource(password) {
+            loginEnabled.value = isLoginButtonEnabled()
+        }
+    }
+
+    fun login() {
+        // UI thread
+        coreContext.postOnCoreThread { core ->
+            core.loadConfigFromXml(corePreferences.linphoneDefaultValuesPath)
+
+            val user = username.value.orEmpty()
+            val domain = corePreferences.defaultDomain
+
+            newlyCreatedAuthInfo = Factory.instance().createAuthInfo(
+                user,
+                null,
+                password.value.orEmpty(),
+                null,
+                null,
+                domain
+            )
+            core.addAuthInfo(newlyCreatedAuthInfo)
+
+            val accountParams = core.createAccountParams()
+            val identityAddress = Factory.instance().createAddress("sip:$user@$domain")
+            accountParams.identityAddress = identityAddress
+            newlyCreatedAccount = core.createAccount(accountParams)
+
+            registrationInProgress.postValue(true)
+            core.addListener(coreListener)
+            core.addAccount(newlyCreatedAccount)
+        }
+    }
+
+    private fun isLoginButtonEnabled(): Boolean {
+        return username.value.orEmpty().isNotEmpty() && password.value.orEmpty().isNotEmpty()
+    }
+}
diff --git a/app/src/main/java/org/linphone/ui/main/contacts/fragment/NewContactFragment.kt b/app/src/main/java/org/linphone/ui/main/contacts/fragment/NewContactFragment.kt
index e8b096e0e..4390fbcc1 100644
--- a/app/src/main/java/org/linphone/ui/main/contacts/fragment/NewContactFragment.kt
+++ b/app/src/main/java/org/linphone/ui/main/contacts/fragment/NewContactFragment.kt
@@ -61,8 +61,12 @@ class NewContactFragment : GenericFragment() {
         }
 
         viewModel.saveChangesEvent.observe(viewLifecycleOwner) {
-            it.consume {
-                goBack() // TODO FIXME : go to contact detail view
+            it.consume { ok ->
+                if (ok) {
+                    goBack() // TODO FIXME : go to contact detail view
+                } else {
+                    // TODO : show error
+                }
             }
         }
     }
diff --git a/app/src/main/java/org/linphone/ui/main/contacts/model/ContactAvatarModel.kt b/app/src/main/java/org/linphone/ui/main/contacts/model/ContactAvatarModel.kt
index 3d2dc6168..7a1fa25c4 100644
--- a/app/src/main/java/org/linphone/ui/main/contacts/model/ContactAvatarModel.kt
+++ b/app/src/main/java/org/linphone/ui/main/contacts/model/ContactAvatarModel.kt
@@ -31,6 +31,8 @@ import org.linphone.utils.LinphoneUtils
 class ContactAvatarModel(val friend: Friend) {
     val id = friend.refKey
 
+    val avatar = MutableLiveData<Uri>()
+
     val initials = LinphoneUtils.getInitials(friend.name.orEmpty())
 
     val presenceStatus = MutableLiveData<ConsolidatedPresence>()
@@ -53,6 +55,7 @@ class ContactAvatarModel(val friend: Friend) {
         // Core thread
         name.postValue(friend.name)
         presenceStatus.postValue(friend.consolidatedPresence)
+        avatar.postValue(getAvatarUri())
 
         friend.addListener(friendListener)
 
@@ -64,8 +67,13 @@ class ContactAvatarModel(val friend: Friend) {
         friend.removeListener(friendListener)
     }
 
-    fun getAvatarUri(): Uri? {
+    private fun getAvatarUri(): Uri? {
         // Core thread
+        val picturePath = friend.photo
+        if (!picturePath.isNullOrEmpty()) {
+            return Uri.parse(picturePath)
+        }
+
         val refKey = friend.refKey
         if (refKey != null) {
             val lookupUri = ContentUris.withAppendedId(
diff --git a/app/src/main/java/org/linphone/ui/main/contacts/viewmodel/ContactNewOrEditViewModel.kt b/app/src/main/java/org/linphone/ui/main/contacts/viewmodel/ContactNewOrEditViewModel.kt
index a75e2165e..7077e33b6 100644
--- a/app/src/main/java/org/linphone/ui/main/contacts/viewmodel/ContactNewOrEditViewModel.kt
+++ b/app/src/main/java/org/linphone/ui/main/contacts/viewmodel/ContactNewOrEditViewModel.kt
@@ -77,6 +77,7 @@ class ContactNewOrEditViewModel() : ViewModel() {
                 friendFoundEvent.postValue(Event(true))
             } else {
                 Log.e("$TAG No friend found using ref key [$refKey]")
+                // TODO : generate unique ref key
             }
         }
     }
diff --git a/app/src/main/java/org/linphone/ui/main/model/AccountModel.kt b/app/src/main/java/org/linphone/ui/main/model/AccountModel.kt
new file mode 100644
index 000000000..281a931a8
--- /dev/null
+++ b/app/src/main/java/org/linphone/ui/main/model/AccountModel.kt
@@ -0,0 +1,105 @@
+/*
+ * Copyright (c) 2010-2023 Belledonne Communications SARL.
+ *
+ * This file is part of linphone-android
+ * (see https://www.linphone.org).
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+package org.linphone.ui.main.model
+
+import androidx.lifecycle.MutableLiveData
+import org.linphone.LinphoneApplication.Companion.coreContext
+import org.linphone.core.Account
+import org.linphone.core.AccountListenerStub
+import org.linphone.core.Friend
+import org.linphone.core.RegistrationState
+import org.linphone.ui.main.contacts.model.ContactAvatarModel
+
+class AccountModel(private val account: Account) {
+    val friend: Friend?
+
+    val contact = MutableLiveData<ContactAvatarModel>()
+
+    val registrationState = MutableLiveData<String>()
+
+    val isConnected = MutableLiveData<Boolean>()
+
+    val inError = MutableLiveData<Boolean>()
+
+    val isDefault = MutableLiveData<Boolean>()
+
+    private val accountListener = object : AccountListenerStub() {
+        override fun onRegistrationStateChanged(
+            account: Account,
+            state: RegistrationState?,
+            message: String
+        ) {
+            updateRegistrationState()
+        }
+    }
+
+    init {
+        // Core thread
+        account.addListener(accountListener)
+        isDefault.postValue(coreContext.core.defaultAccount == account)
+
+        friend = coreContext.contactsManager.localFriends.find {
+            it.addresses.find { address ->
+                address.weakEqual(account.params.identityAddress!!)
+            } != null
+        }
+
+        if (friend != null) {
+            contact.postValue(ContactAvatarModel(friend))
+        }
+
+        updateRegistrationState()
+    }
+
+    fun destroy() {
+        // Core thread
+        account.removeListener(accountListener)
+    }
+
+    fun setAsDefault() {
+        // UI thread
+        coreContext.postOnCoreThread { core ->
+            core.defaultAccount = account
+            isDefault.postValue(true)
+        }
+    }
+
+    fun refreshRegister() {
+        // UI thread
+        coreContext.postOnCoreThread { core ->
+            core.refreshRegisters()
+        }
+    }
+
+    private fun updateRegistrationState() {
+        // Core thread
+        val state = when (account.state) {
+            RegistrationState.None, RegistrationState.Cleared -> "Disabled"
+            RegistrationState.Progress -> "Connection..."
+            RegistrationState.Failed -> "Error"
+            RegistrationState.Ok -> "Connected"
+            RegistrationState.Refreshing -> "Refreshing"
+            else -> "${account.state}"
+        }
+        isConnected.postValue(account.state == RegistrationState.Ok)
+        inError.postValue(account.state == RegistrationState.Failed)
+        registrationState.postValue(state)
+    }
+}
diff --git a/app/src/main/java/org/linphone/ui/main/viewmodel/DrawerMenuViewModel.kt b/app/src/main/java/org/linphone/ui/main/viewmodel/DrawerMenuViewModel.kt
index 4feef1108..a3bf1f034 100644
--- a/app/src/main/java/org/linphone/ui/main/viewmodel/DrawerMenuViewModel.kt
+++ b/app/src/main/java/org/linphone/ui/main/viewmodel/DrawerMenuViewModel.kt
@@ -21,9 +21,16 @@ package org.linphone.ui.main.viewmodel
 
 import androidx.lifecycle.MutableLiveData
 import androidx.lifecycle.ViewModel
+import org.linphone.LinphoneApplication.Companion.coreContext
+import org.linphone.core.Account
+import org.linphone.core.Core
+import org.linphone.core.CoreListenerStub
+import org.linphone.core.RegistrationState
+import org.linphone.ui.main.model.AccountModel
 import org.linphone.utils.Event
 
 class DrawerMenuViewModel : ViewModel() {
+    val accounts = MutableLiveData<ArrayList<AccountModel>>()
 
     val startAssistantEvent: MutableLiveData<Event<Boolean>> by lazy {
         MutableLiveData<Event<Boolean>>()
@@ -33,6 +40,33 @@ class DrawerMenuViewModel : ViewModel() {
         MutableLiveData<Event<Boolean>>()
     }
 
+    private val coreListener = object : CoreListenerStub() {
+        override fun onAccountRegistrationStateChanged(
+            core: Core,
+            account: Account,
+            state: RegistrationState?,
+            message: String
+        ) {
+            // Core thread
+            computeAccountsList()
+        }
+    }
+
+    init {
+        coreContext.postOnCoreThread { core ->
+            core.addListener(coreListener)
+            computeAccountsList()
+        }
+    }
+
+    override fun onCleared() {
+        super.onCleared()
+
+        coreContext.postOnCoreThread { core ->
+            core.removeListener(coreListener)
+        }
+    }
+
     fun closeDrawerMenu() {
         // UI thread
         closeDrawerEvent.value = Event(true)
@@ -42,4 +76,16 @@ class DrawerMenuViewModel : ViewModel() {
         // UI thread
         startAssistantEvent.value = Event(true)
     }
+
+    private fun computeAccountsList() {
+        // Core thread
+        accounts.value.orEmpty().forEach(AccountModel::destroy)
+
+        val list = arrayListOf<AccountModel>()
+        for (account in coreContext.core.accountList) {
+            val model = AccountModel(account)
+            list.add(model)
+        }
+        accounts.postValue(list)
+    }
 }
diff --git a/app/src/main/java/org/linphone/ui/main/viewmodel/TopBarViewModel.kt b/app/src/main/java/org/linphone/ui/main/viewmodel/TopBarViewModel.kt
index dfde83e8a..550cd8a30 100644
--- a/app/src/main/java/org/linphone/ui/main/viewmodel/TopBarViewModel.kt
+++ b/app/src/main/java/org/linphone/ui/main/viewmodel/TopBarViewModel.kt
@@ -21,11 +21,15 @@ package org.linphone.ui.main.viewmodel
 
 import androidx.lifecycle.MutableLiveData
 import androidx.lifecycle.ViewModel
+import org.linphone.LinphoneApplication.Companion.coreContext
+import org.linphone.ui.main.model.AccountModel
 import org.linphone.utils.Event
 
 class TopBarViewModel : ViewModel() {
     val title = MutableLiveData<String>()
 
+    val account = MutableLiveData<AccountModel>()
+
     val searchBarVisible = MutableLiveData<Boolean>()
 
     val searchFilter = MutableLiveData<String>()
@@ -40,10 +44,21 @@ class TopBarViewModel : ViewModel() {
 
     init {
         searchBarVisible.value = false
+
+        coreContext.postOnCoreThread { core ->
+            if (core.accountList.isNotEmpty()) {
+                val defaultAccount = core.defaultAccount ?: core.accountList.first()
+                account.postValue(AccountModel(defaultAccount))
+            }
+        }
     }
 
     override fun onCleared() {
         super.onCleared()
+
+        coreContext.postOnCoreThread {
+            account.value?.destroy()
+        }
     }
 
     fun openDrawerMenu() {
diff --git a/app/src/main/java/org/linphone/utils/DataBindingUtils.kt b/app/src/main/java/org/linphone/utils/DataBindingUtils.kt
index 03155a714..c5be397b3 100644
--- a/app/src/main/java/org/linphone/utils/DataBindingUtils.kt
+++ b/app/src/main/java/org/linphone/utils/DataBindingUtils.kt
@@ -131,6 +131,7 @@ fun AppCompatTextView.setDrawableTint(color: Int) {
 
 @BindingAdapter("coilContact")
 fun loadContactPictureWithCoil2(imageView: ImageView, contact: ContactData?) {
+    // UI thread !
     if (contact == null) {
         imageView.load(R.drawable.contact_avatar)
     } else {
@@ -143,6 +144,7 @@ fun loadContactPictureWithCoil2(imageView: ImageView, contact: ContactData?) {
 
 @BindingAdapter("contactAvatar")
 fun AvatarView.loadContactPicture(contact: ContactAvatarModel?) {
+    // UI thread !
     if (contact == null) {
         loadImage(R.drawable.contact_avatar)
     } else {
@@ -152,7 +154,7 @@ fun AvatarView.loadContactPicture(contact: ContactAvatarModel?) {
         }
         indicatorEnabled = contact.presenceStatus.value != ConsolidatedPresence.Offline
 
-        val uri = contact.getAvatarUri()
+        val uri = contact.avatar.value
         loadImage(
             data = uri,
             onStart = {
diff --git a/app/src/main/res/layout/account_list_cell.xml b/app/src/main/res/layout/account_list_cell.xml
index 588af8c12..0a457edc2 100644
--- a/app/src/main/res/layout/account_list_cell.xml
+++ b/app/src/main/res/layout/account_list_cell.xml
@@ -8,18 +8,22 @@
         <import type="android.graphics.Typeface" />
         <variable
             name="model"
-            type="org.linphone.ui.main.contacts.model.ContactAvatarModel" />
-        <variable
-            name="onClickListener"
-            type="View.OnClickListener" />
+            type="org.linphone.ui.main.model.AccountModel" />
     </data>
 
     <androidx.constraintlayout.widget.ConstraintLayout
-        android:onClick="@{onClickListener}"
+        android:onClick="@{() -> model.setAsDefault()}"
         android:layout_width="match_parent"
         android:layout_height="wrap_content"
         android:background="@drawable/shape_conversation_cell_background">
 
+        <androidx.constraintlayout.widget.Barrier
+            android:id="@+id/left_barrier"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            app:barrierDirection="right"
+            app:constraint_referenced_ids="name, register_status" />
+
         <io.getstream.avatarview.AvatarView
             android:id="@+id/avatar"
             android:layout_width="@dimen/avatar_list_cell_size"
@@ -28,8 +32,7 @@
             android:layout_marginTop="5dp"
             android:layout_marginBottom="5dp"
             android:adjustViewBounds="true"
-            contactAvatar="@{model}"
-            app:avatarViewInitials="JD"
+            contactAvatar="@{model.contact}"
             app:avatarViewPlaceholder="@drawable/contact_avatar"
             app:avatarViewInitialsBackgroundColor="@color/blue_outgoing_message"
             app:avatarViewInitialsTextColor="@color/gray_9"
@@ -53,7 +56,7 @@
             android:layout_height="wrap_content"
             android:layout_marginBottom="5dp"
             android:layout_marginTop="5dp"
-            android:text="John Doe"
+            android:text="@{model.contact.name, default=`John Doe`}"
             android:textSize="14sp"
             android:textColor="@color/gray_8"
             android:layout_marginStart="10dp"
@@ -62,6 +65,7 @@
             app:layout_constraintBottom_toTopOf="@id/register_status"/>
 
         <androidx.appcompat.widget.AppCompatTextView
+            android:onClick="@{() -> model.refreshRegister()}"
             style="@style/default_text_style_300"
             android:id="@+id/register_status"
             android:layout_width="wrap_content"
@@ -73,13 +77,29 @@
             android:paddingBottom="4dp"
             android:background="@drawable/shape_chip_gray_background"
             android:gravity="center"
-            android:text="Connected"
-            android:textColor="@color/green_online"
+            android:text="@{model.registrationState, default=`Connected`}"
+            android:textColor="@{model.isConnected ? @color/green_online : model.inError ? @color/red_danger : @color/gray_1, default=@color/green_online}"
             android:textSize="12sp"
             app:layout_constraintStart_toStartOf="@id/name"
             app:layout_constraintTop_toBottomOf="@id/name"
             app:layout_constraintBottom_toTopOf="@id/separator"/>
 
+        <androidx.appcompat.widget.AppCompatTextView
+            style="@style/default_text_style_300"
+            android:visibility="@{model.isDefault ? View.VISIBLE : View.GONE}"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:text="Default"
+            android:textSize="12sp"
+            android:gravity="center"
+            android:drawableStart="@drawable/check"
+            android:drawablePadding="3dp"
+            app:drawableTint="@color/primary_color"
+            app:layout_constraintStart_toEndOf="@id/left_barrier"
+            app:layout_constraintEnd_toStartOf="@id/menu"
+            app:layout_constraintTop_toTopOf="parent"
+            app:layout_constraintBottom_toBottomOf="parent"/>
+
         <ImageView
             android:id="@+id/menu"
             android:layout_width="wrap_content"
diff --git a/app/src/main/res/layout/assistant_login_fragment.xml b/app/src/main/res/layout/assistant_login_fragment.xml
index 20e47a481..056af5d8e 100644
--- a/app/src/main/res/layout/assistant_login_fragment.xml
+++ b/app/src/main/res/layout/assistant_login_fragment.xml
@@ -8,6 +8,9 @@
         <variable
             name="registerClickListener"
             type="View.OnClickListener" />
+        <variable
+            name="viewModel"
+            type="org.linphone.ui.assistant.viewmodel.AssistantViewModel" />
     </data>
 
     <ScrollView
@@ -55,7 +58,7 @@
                 android:layout_marginEnd="16dp"
                 android:paddingStart="20dp"
                 android:paddingEnd="20dp"
-                android:text="John Doe"
+                android:text="@={viewModel.username, default=`johndoe`}"
                 android:textSize="14sp"
                 android:textColor="@color/gray_9"
                 android:background="@drawable/shape_edit_text_background"
@@ -86,7 +89,7 @@
                 android:layout_marginEnd="16dp"
                 android:paddingStart="20dp"
                 android:paddingEnd="20dp"
-                android:text="John Doe"
+                android:text="@={viewModel.password, default=`johndoe`}"
                 android:textSize="14sp"
                 android:textColor="@color/gray_9"
                 android:background="@drawable/shape_edit_text_background"
@@ -98,6 +101,8 @@
                 app:layout_constraintEnd_toEndOf="parent"/>
 
             <androidx.appcompat.widget.AppCompatTextView
+                android:onClick="@{() -> viewModel.login()}"
+                android:enabled="@{viewModel.loginEnabled &amp;&amp; !viewModel.registrationInProgress, default=false}"
                 style="@style/default_text_style_600"
                 android:id="@+id/login"
                 android:layout_width="0dp"
diff --git a/app/src/main/res/layout/drawer_menu.xml b/app/src/main/res/layout/drawer_menu.xml
index 3e73c7095..f828d6b66 100644
--- a/app/src/main/res/layout/drawer_menu.xml
+++ b/app/src/main/res/layout/drawer_menu.xml
@@ -60,12 +60,9 @@
                 android:layout_height="wrap_content"
                 android:layout_marginStart="5dp"
                 android:layout_marginEnd="5dp"
-                android:orientation="vertical">
-
-                <include
-                    layout="@layout/account_list_cell" />
-
-            </LinearLayout>
+                android:orientation="vertical"
+                entries="@{viewModel.accounts}"
+                layout="@{@layout/account_list_cell}"/>
 
         </ScrollView>
 
diff --git a/app/src/main/res/layout/top_search_bar.xml b/app/src/main/res/layout/top_search_bar.xml
index 84474edfb..e41b677d8 100644
--- a/app/src/main/res/layout/top_search_bar.xml
+++ b/app/src/main/res/layout/top_search_bar.xml
@@ -40,6 +40,7 @@
             android:layout_width="@dimen/avatar_list_cell_size"
             android:layout_height="@dimen/avatar_list_cell_size"
             android:layout_marginStart="15dp"
+            contactAvatar="@{viewModel.account.contact}"
             app:avatarViewBorderColor="@color/trusted_blue"
             app:avatarViewBorderWidth="2dp"
             app:avatarViewIndicatorSizeCriteria="3"
@@ -52,7 +53,6 @@
             app:avatarViewInitialsTextStyle="bold"
             app:avatarViewPlaceholder="@drawable/contact_avatar"
             app:avatarViewShape="circle"
-            app:avatarViewInitials="SB"
             app:layout_constraintBottom_toBottomOf="@id/title"
             app:layout_constraintStart_toStartOf="parent"
             app:layout_constraintTop_toTopOf="@id/title" />