diff --git a/app/src/main/java/com/nextcloud/talk/activities/BaseActivity.kt b/app/src/main/java/com/nextcloud/talk/activities/BaseActivity.kt
index 7c76ddc57..0f16bd502 100644
--- a/app/src/main/java/com/nextcloud/talk/activities/BaseActivity.kt
+++ b/app/src/main/java/com/nextcloud/talk/activities/BaseActivity.kt
@@ -10,8 +10,10 @@ package com.nextcloud.talk.activities
 
 import android.annotation.SuppressLint
 import android.content.Context
+import android.content.Intent
 import android.os.Build
 import android.os.Bundle
+import android.text.TextUtils
 import android.util.Log
 import android.view.View
 import android.view.ViewGroup
@@ -31,9 +33,14 @@ import com.nextcloud.talk.account.ServerSelectionActivity
 import com.nextcloud.talk.account.SwitchAccountActivity
 import com.nextcloud.talk.account.WebViewLoginActivity
 import com.nextcloud.talk.application.NextcloudTalkApplication
+import com.nextcloud.talk.chat.ChatActivity
 import com.nextcloud.talk.events.CertificateEvent
 import com.nextcloud.talk.ui.theme.ViewThemeUtils
 import com.nextcloud.talk.utils.DisplayUtils
+import com.nextcloud.talk.utils.FileViewerUtils
+import com.nextcloud.talk.utils.UriUtils
+import com.nextcloud.talk.utils.bundle.BundleKeys
+import com.nextcloud.talk.utils.database.user.CurrentUserProviderNew
 import com.nextcloud.talk.utils.preferences.AppPreferences
 import com.nextcloud.talk.utils.ssl.TrustManager
 import org.greenrobot.eventbus.EventBus
@@ -65,6 +72,9 @@ open class BaseActivity : AppCompatActivity() {
     @Inject
     lateinit var context: Context
 
+    @Inject
+    lateinit var currentUserProvider: CurrentUserProviderNew
+
     open val appBarLayoutType: AppBarLayoutType
         get() = AppBarLayoutType.TOOLBAR
 
@@ -223,6 +233,42 @@ open class BaseActivity : AppCompatActivity() {
         showCertificateDialog(event.x509Certificate, event.trustManager, event.sslErrorHandler)
     }
 
+    override fun startActivity(intent: Intent) {
+        val user = currentUserProvider.currentUser.blockingGet()
+        if (intent.data != null && TextUtils.equals(intent.action, Intent.ACTION_VIEW)) {
+            val uri = intent.data.toString()
+            if (uri.startsWith(user.baseUrl!!)) {
+                if (UriUtils.isInstanceInternalFileShareUrl(user.baseUrl!!, uri)) {
+                    // https://cloud.nextcloud.com/f/41
+                    val fileViewerUtils = FileViewerUtils(applicationContext, user)
+                    fileViewerUtils.openFileInFilesApp(uri, UriUtils.extractInstanceInternalFileShareFileId(uri))
+                } else if (UriUtils.isInstanceInternalFileUrl(user.baseUrl!!, uri)) {
+                    // https://cloud.nextcloud.com/apps/files/?dir=/Engineering&fileid=41
+                    val fileViewerUtils = FileViewerUtils(applicationContext, user)
+                    fileViewerUtils.openFileInFilesApp(uri, UriUtils.extractInstanceInternalFileFileId(uri))
+                } else if (UriUtils.isInstanceInternalFileUrlNew(user.baseUrl!!, uri)) {
+                    // https://cloud.nextcloud.com/apps/files/?dir=/Engineering&fileid=41
+                    val fileViewerUtils = FileViewerUtils(applicationContext, user)
+                    fileViewerUtils.openFileInFilesApp(uri, UriUtils.extractInstanceInternalFileFileIdNew(uri))
+                } else if (UriUtils.isInstanceInternalTalkUrl(user.baseUrl!!, uri)) {
+                    // https://cloud.nextcloud.com/call/123456789
+                    val bundle = Bundle()
+                    bundle.putString(BundleKeys.KEY_ROOM_TOKEN, UriUtils.extractRoomTokenFromTalkUrl(uri))
+                    val chatIntent = Intent(context, ChatActivity::class.java)
+                    chatIntent.putExtras(bundle)
+                    chatIntent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP)
+                    startActivity(chatIntent)
+                } else {
+                    super.startActivity(intent)
+                }
+            } else {
+                super.startActivity(intent)
+            }
+        } else {
+            super.startActivity(intent)
+        }
+    }
+
     companion object {
         private val TAG = BaseActivity::class.java.simpleName
     }
diff --git a/app/src/main/java/com/nextcloud/talk/activities/CallActivity.kt b/app/src/main/java/com/nextcloud/talk/activities/CallActivity.kt
index 99fd461a8..d14f3c4d7 100644
--- a/app/src/main/java/com/nextcloud/talk/activities/CallActivity.kt
+++ b/app/src/main/java/com/nextcloud/talk/activities/CallActivity.kt
@@ -120,7 +120,6 @@ import com.nextcloud.talk.utils.bundle.BundleKeys.KEY_SWITCH_TO_ROOM
 import com.nextcloud.talk.utils.CapabilitiesUtil
 import com.nextcloud.talk.utils.CapabilitiesUtil.hasSpreedFeatureCapability
 import com.nextcloud.talk.utils.CapabilitiesUtil.isCallRecordingAvailable
-import com.nextcloud.talk.utils.database.user.CurrentUserProviderNew
 import com.nextcloud.talk.utils.permissions.PlatformPermissionUtil
 import com.nextcloud.talk.utils.power.PowerManagerUtils
 import com.nextcloud.talk.utils.registerPermissionHandlerBroadcastReceiver
@@ -183,10 +182,6 @@ class CallActivity : CallBaseActivity() {
     @Inject
     var ncApi: NcApi? = null
 
-    @JvmField
-    @Inject
-    var currentUserProvider: CurrentUserProviderNew? = null
-
     @JvmField
     @Inject
     var userManager: UserManager? = null
@@ -375,7 +370,7 @@ class CallActivity : CallBaseActivity() {
         binding = CallActivityBinding.inflate(layoutInflater)
         setContentView(binding!!.root)
         hideNavigationIfNoPipAvailable()
-        conversationUser = currentUserProvider!!.currentUser.blockingGet()
+        conversationUser = currentUserProvider.currentUser.blockingGet()
         val extras = intent.extras
         roomId = extras!!.getString(KEY_ROOM_ID, "")
         roomToken = extras.getString(KEY_ROOM_TOKEN, "")
diff --git a/app/src/main/java/com/nextcloud/talk/chat/ChatActivity.kt b/app/src/main/java/com/nextcloud/talk/chat/ChatActivity.kt
index 596387c13..b2c3affea 100644
--- a/app/src/main/java/com/nextcloud/talk/chat/ChatActivity.kt
+++ b/app/src/main/java/com/nextcloud/talk/chat/ChatActivity.kt
@@ -195,7 +195,6 @@ import com.nextcloud.talk.utils.Mimetype
 import com.nextcloud.talk.utils.NotificationUtils
 import com.nextcloud.talk.utils.ParticipantPermissions
 import com.nextcloud.talk.utils.SpreedFeatures
-import com.nextcloud.talk.utils.UriUtils
 import com.nextcloud.talk.utils.VibrationUtils
 import com.nextcloud.talk.utils.bundle.BundleKeys
 import com.nextcloud.talk.utils.bundle.BundleKeys.KEY_CALL_VOICE_ONLY
@@ -209,7 +208,6 @@ import com.nextcloud.talk.utils.bundle.BundleKeys.KEY_ROOM_ID
 import com.nextcloud.talk.utils.bundle.BundleKeys.KEY_ROOM_TOKEN
 import com.nextcloud.talk.utils.bundle.BundleKeys.KEY_START_CALL_AFTER_ROOM_SWITCH
 import com.nextcloud.talk.utils.bundle.BundleKeys.KEY_SWITCH_TO_ROOM
-import com.nextcloud.talk.utils.database.user.CurrentUserProviderNew
 import com.nextcloud.talk.utils.permissions.PlatformPermissionUtil
 import com.nextcloud.talk.utils.rx.DisposableSet
 import com.nextcloud.talk.utils.singletons.ApplicationWideCurrentRoomHolder
@@ -267,9 +265,6 @@ class ChatActivity :
     @Inject
     lateinit var ncApi: NcApi
 
-    @Inject
-    lateinit var currentUserProvider: CurrentUserProviderNew
-
     @Inject
     lateinit var permissionUtil: PlatformPermissionUtil
 
@@ -3300,34 +3295,6 @@ class ChatActivity :
         )
     }
 
-    override fun startActivity(intent: Intent) {
-        val user = currentUserProvider.currentUser.blockingGet()
-        if (intent.data != null && TextUtils.equals(intent.action, Intent.ACTION_VIEW)) {
-            val uri = intent.data.toString()
-            if (uri.startsWith(user.baseUrl!!)) {
-                if (UriUtils.isInstanceInternalFileShareUrl(user.baseUrl!!, uri)) {
-                    // https://cloud.nextcloud.com/f/41
-                    val fileViewerUtils = FileViewerUtils(applicationContext, user)
-                    fileViewerUtils.openFileInFilesApp(uri, UriUtils.extractInstanceInternalFileShareFileId(uri))
-                } else if (UriUtils.isInstanceInternalFileUrl(user.baseUrl!!, uri)) {
-                    // https://cloud.nextcloud.com/apps/files/?dir=/Engineering&fileid=41
-                    val fileViewerUtils = FileViewerUtils(applicationContext, user)
-                    fileViewerUtils.openFileInFilesApp(uri, UriUtils.extractInstanceInternalFileFileId(uri))
-                } else if (UriUtils.isInstanceInternalFileUrlNew(user.baseUrl!!, uri)) {
-                    // https://cloud.nextcloud.com/apps/files/?dir=/Engineering&fileid=41
-                    val fileViewerUtils = FileViewerUtils(applicationContext, user)
-                    fileViewerUtils.openFileInFilesApp(uri, UriUtils.extractInstanceInternalFileFileIdNew(uri))
-                } else {
-                    super.startActivity(intent)
-                }
-            } else {
-                super.startActivity(intent)
-            }
-        } else {
-            super.startActivity(intent)
-        }
-    }
-
     fun sendSelectLocalFileIntent() {
         if (!permissionUtil.isFilesPermissionGranted()) {
             requestReadFilesPermissions()
diff --git a/app/src/main/java/com/nextcloud/talk/conversationinfo/ConversationInfoActivity.kt b/app/src/main/java/com/nextcloud/talk/conversationinfo/ConversationInfoActivity.kt
index dc285c211..ac5ba9d58 100644
--- a/app/src/main/java/com/nextcloud/talk/conversationinfo/ConversationInfoActivity.kt
+++ b/app/src/main/java/com/nextcloud/talk/conversationinfo/ConversationInfoActivity.kt
@@ -76,7 +76,6 @@ import com.nextcloud.talk.utils.DateUtils
 import com.nextcloud.talk.utils.ShareUtils
 import com.nextcloud.talk.utils.SpreedFeatures
 import com.nextcloud.talk.utils.bundle.BundleKeys
-import com.nextcloud.talk.utils.database.user.CurrentUserProviderNew
 import com.nextcloud.talk.utils.preferences.preferencestorage.DatabaseStorageModule
 import eu.davidea.flexibleadapter.FlexibleAdapter
 import eu.davidea.flexibleadapter.common.SmoothScrollLinearLayoutManager
@@ -103,9 +102,6 @@ class ConversationInfoActivity :
     @Inject
     lateinit var ncApi: NcApi
 
-    @Inject
-    lateinit var currentUserProvider: CurrentUserProviderNew
-
     @Inject
     lateinit var conversationsRepository: ConversationsRepository
 
diff --git a/app/src/main/java/com/nextcloud/talk/conversationinfoedit/ConversationInfoEditActivity.kt b/app/src/main/java/com/nextcloud/talk/conversationinfoedit/ConversationInfoEditActivity.kt
index 6464c9be6..c030ea7e2 100644
--- a/app/src/main/java/com/nextcloud/talk/conversationinfoedit/ConversationInfoEditActivity.kt
+++ b/app/src/main/java/com/nextcloud/talk/conversationinfoedit/ConversationInfoEditActivity.kt
@@ -41,7 +41,6 @@ import com.nextcloud.talk.utils.ApiUtils
 import com.nextcloud.talk.utils.CapabilitiesUtil
 import com.nextcloud.talk.utils.PickImage
 import com.nextcloud.talk.utils.bundle.BundleKeys
-import com.nextcloud.talk.utils.database.user.CurrentUserProviderNew
 import io.reactivex.Observer
 import io.reactivex.android.schedulers.AndroidSchedulers
 import io.reactivex.disposables.Disposable
@@ -57,9 +56,6 @@ class ConversationInfoEditActivity : BaseActivity() {
     @Inject
     lateinit var ncApi: NcApi
 
-    @Inject
-    lateinit var currentUserProvider: CurrentUserProviderNew
-
     @Inject
     lateinit var viewModelFactory: ViewModelProvider.Factory
 
diff --git a/app/src/main/java/com/nextcloud/talk/diagnose/DiagnoseActivity.kt b/app/src/main/java/com/nextcloud/talk/diagnose/DiagnoseActivity.kt
index 8599146c6..68e69dc65 100644
--- a/app/src/main/java/com/nextcloud/talk/diagnose/DiagnoseActivity.kt
+++ b/app/src/main/java/com/nextcloud/talk/diagnose/DiagnoseActivity.kt
@@ -43,7 +43,6 @@ import com.nextcloud.talk.utils.NotificationUtils
 import com.nextcloud.talk.utils.PushUtils.Companion.LATEST_PUSH_REGISTRATION_AT_PUSH_PROXY
 import com.nextcloud.talk.utils.PushUtils.Companion.LATEST_PUSH_REGISTRATION_AT_SERVER
 import com.nextcloud.talk.utils.UserIdUtils
-import com.nextcloud.talk.utils.database.user.CurrentUserProviderNew
 import com.nextcloud.talk.utils.permissions.PlatformPermissionUtil
 import com.nextcloud.talk.utils.power.PowerManagerUtils
 import javax.inject.Inject
@@ -62,9 +61,6 @@ class DiagnoseActivity : BaseActivity() {
     @Inject
     lateinit var userManager: UserManager
 
-    @Inject
-    lateinit var currentUserProvider: CurrentUserProviderNew
-
     @Inject
     lateinit var platformPermissionUtil: PlatformPermissionUtil
 
diff --git a/app/src/main/java/com/nextcloud/talk/invitation/InvitationsActivity.kt b/app/src/main/java/com/nextcloud/talk/invitation/InvitationsActivity.kt
index 9fbb23786..b0ec75f28 100644
--- a/app/src/main/java/com/nextcloud/talk/invitation/InvitationsActivity.kt
+++ b/app/src/main/java/com/nextcloud/talk/invitation/InvitationsActivity.kt
@@ -27,7 +27,6 @@ import com.nextcloud.talk.invitation.data.ActionEnum
 import com.nextcloud.talk.invitation.data.Invitation
 import com.nextcloud.talk.invitation.viewmodels.InvitationsViewModel
 import com.nextcloud.talk.utils.bundle.BundleKeys
-import com.nextcloud.talk.utils.database.user.CurrentUserProviderNew
 import javax.inject.Inject
 
 @AutoInjector(NextcloudTalkApplication::class)
@@ -41,9 +40,6 @@ class InvitationsActivity : BaseActivity() {
     @Inject
     lateinit var viewModelFactory: ViewModelProvider.Factory
 
-    @Inject
-    lateinit var userProvider: CurrentUserProviderNew
-
     lateinit var invitationsViewModel: InvitationsViewModel
 
     lateinit var adapter: InvitationsAdapter
@@ -63,7 +59,7 @@ class InvitationsActivity : BaseActivity() {
 
         invitationsViewModel = ViewModelProvider(this, viewModelFactory)[InvitationsViewModel::class.java]
 
-        currentUser = userProvider.currentUser.blockingGet()
+        currentUser = currentUserProvider.currentUser.blockingGet()
         invitationsViewModel.fetchInvitations(currentUser)
 
         binding = ActivityInvitationsBinding.inflate(layoutInflater)
diff --git a/app/src/main/java/com/nextcloud/talk/messagesearch/MessageSearchActivity.kt b/app/src/main/java/com/nextcloud/talk/messagesearch/MessageSearchActivity.kt
index 0f7e38566..f32e54193 100644
--- a/app/src/main/java/com/nextcloud/talk/messagesearch/MessageSearchActivity.kt
+++ b/app/src/main/java/com/nextcloud/talk/messagesearch/MessageSearchActivity.kt
@@ -29,7 +29,6 @@ import com.nextcloud.talk.conversationlist.ConversationsListActivity
 import com.nextcloud.talk.data.user.model.User
 import com.nextcloud.talk.databinding.ActivityMessageSearchBinding
 import com.nextcloud.talk.utils.bundle.BundleKeys
-import com.nextcloud.talk.utils.database.user.CurrentUserProviderNew
 import com.nextcloud.talk.utils.rx.SearchViewObservable.Companion.observeSearchView
 import eu.davidea.flexibleadapter.FlexibleAdapter
 import eu.davidea.flexibleadapter.items.AbstractFlexibleItem
@@ -47,9 +46,6 @@ class MessageSearchActivity : BaseActivity() {
     @Inject
     lateinit var viewModelFactory: ViewModelProvider.Factory
 
-    @Inject
-    lateinit var userProvider: CurrentUserProviderNew
-
     private lateinit var binding: ActivityMessageSearchBinding
     private lateinit var searchView: SearchView
 
@@ -77,7 +73,7 @@ class MessageSearchActivity : BaseActivity() {
         setupSystemColors()
 
         viewModel = ViewModelProvider(this, viewModelFactory)[MessageSearchViewModel::class.java]
-        user = userProvider.currentUser.blockingGet()
+        user = currentUserProvider.currentUser.blockingGet()
         val roomToken = intent.getStringExtra(BundleKeys.KEY_ROOM_TOKEN)!!
         viewModel.initialize(roomToken)
         setupStateObserver()
diff --git a/app/src/main/java/com/nextcloud/talk/openconversations/ListOpenConversationsActivity.kt b/app/src/main/java/com/nextcloud/talk/openconversations/ListOpenConversationsActivity.kt
index 8b1dcd432..ac57ffe55 100644
--- a/app/src/main/java/com/nextcloud/talk/openconversations/ListOpenConversationsActivity.kt
+++ b/app/src/main/java/com/nextcloud/talk/openconversations/ListOpenConversationsActivity.kt
@@ -23,7 +23,6 @@ import com.nextcloud.talk.openconversations.adapters.OpenConversationsAdapter
 import com.nextcloud.talk.openconversations.data.OpenConversation
 import com.nextcloud.talk.openconversations.viewmodels.OpenConversationsViewModel
 import com.nextcloud.talk.utils.bundle.BundleKeys
-import com.nextcloud.talk.utils.database.user.CurrentUserProviderNew
 import javax.inject.Inject
 
 @AutoInjector(NextcloudTalkApplication::class)
@@ -37,9 +36,6 @@ class ListOpenConversationsActivity : BaseActivity() {
     @Inject
     lateinit var viewModelFactory: ViewModelProvider.Factory
 
-    @Inject
-    lateinit var userProvider: CurrentUserProviderNew
-
     lateinit var openConversationsViewModel: OpenConversationsViewModel
 
     lateinit var adapter: OpenConversationsAdapter
@@ -57,7 +53,7 @@ class ListOpenConversationsActivity : BaseActivity() {
         setContentView(binding.root)
         setupSystemColors()
 
-        val user = userProvider.currentUser.blockingGet()
+        val user = currentUserProvider.currentUser.blockingGet()
 
         adapter = OpenConversationsAdapter(user) { conversation -> adapterOnClick(conversation) }
         binding.openConversationsRecyclerView.adapter = adapter
diff --git a/app/src/main/java/com/nextcloud/talk/settings/SettingsActivity.kt b/app/src/main/java/com/nextcloud/talk/settings/SettingsActivity.kt
index ef65255af..e86439a59 100644
--- a/app/src/main/java/com/nextcloud/talk/settings/SettingsActivity.kt
+++ b/app/src/main/java/com/nextcloud/talk/settings/SettingsActivity.kt
@@ -75,7 +75,6 @@ import com.nextcloud.talk.utils.NotificationUtils.getCallRingtoneUri
 import com.nextcloud.talk.utils.NotificationUtils.getMessageRingtoneUri
 import com.nextcloud.talk.utils.SecurityUtils
 import com.nextcloud.talk.utils.SpreedFeatures
-import com.nextcloud.talk.utils.database.user.CurrentUserProviderNew
 import com.nextcloud.talk.utils.permissions.PlatformPermissionUtil
 import com.nextcloud.talk.utils.power.PowerManagerUtils
 import com.nextcloud.talk.utils.preferences.AppPreferencesImpl
@@ -107,9 +106,6 @@ class SettingsActivity : BaseActivity(), SetPhoneNumberDialogFragment.SetPhoneNu
     @Inject
     lateinit var userManager: UserManager
 
-    @Inject
-    lateinit var currentUserProvider: CurrentUserProviderNew
-
     @Inject
     lateinit var platformPermissionUtil: PlatformPermissionUtil
 
diff --git a/app/src/main/java/com/nextcloud/talk/shareditems/activities/SharedItemsActivity.kt b/app/src/main/java/com/nextcloud/talk/shareditems/activities/SharedItemsActivity.kt
index fbdb3c68f..021cb9faa 100644
--- a/app/src/main/java/com/nextcloud/talk/shareditems/activities/SharedItemsActivity.kt
+++ b/app/src/main/java/com/nextcloud/talk/shareditems/activities/SharedItemsActivity.kt
@@ -13,7 +13,6 @@ import android.os.Bundle
 import android.util.Log
 import android.view.MenuItem
 import android.view.View
-import androidx.appcompat.app.AppCompatActivity
 import androidx.core.content.res.ResourcesCompat
 import androidx.lifecycle.ViewModelProvider
 import androidx.recyclerview.widget.GridLayoutManager
@@ -22,31 +21,24 @@ import androidx.recyclerview.widget.RecyclerView
 import autodagger.AutoInjector
 import com.google.android.material.tabs.TabLayout
 import com.nextcloud.talk.R
+import com.nextcloud.talk.activities.BaseActivity
 import com.nextcloud.talk.application.NextcloudTalkApplication
 import com.nextcloud.talk.data.user.model.User
 import com.nextcloud.talk.databinding.ActivitySharedItemsBinding
 import com.nextcloud.talk.shareditems.adapters.SharedItemsAdapter
 import com.nextcloud.talk.shareditems.model.SharedItemType
 import com.nextcloud.talk.shareditems.viewmodels.SharedItemsViewModel
-import com.nextcloud.talk.ui.theme.ViewThemeUtils
 import com.nextcloud.talk.utils.DisplayUtils
 import com.nextcloud.talk.utils.bundle.BundleKeys.KEY_CONVERSATION_NAME
 import com.nextcloud.talk.utils.bundle.BundleKeys.KEY_ROOM_TOKEN
-import com.nextcloud.talk.utils.database.user.CurrentUserProviderNew
 import javax.inject.Inject
 
 @AutoInjector(NextcloudTalkApplication::class)
-class SharedItemsActivity : AppCompatActivity() {
-
-    @Inject
-    lateinit var currentUserProvider: CurrentUserProviderNew
+class SharedItemsActivity : BaseActivity() {
 
     @Inject
     lateinit var viewModelFactory: ViewModelProvider.Factory
 
-    @Inject
-    lateinit var viewThemeUtils: ViewThemeUtils
-
     private lateinit var binding: ActivitySharedItemsBinding
     private lateinit var viewModel: SharedItemsViewModel
 
diff --git a/app/src/main/java/com/nextcloud/talk/utils/UriUtils.kt b/app/src/main/java/com/nextcloud/talk/utils/UriUtils.kt
index 1529ed258..a6e57b099 100644
--- a/app/src/main/java/com/nextcloud/talk/utils/UriUtils.kt
+++ b/app/src/main/java/com/nextcloud/talk/utils/UriUtils.kt
@@ -22,15 +22,27 @@ class UriUtils {
 
         fun isInstanceInternalFileShareUrl(baseUrl: String, url: String): Boolean {
             // https://cloud.nextcloud.com/f/41
+            // https://cloud.nextcloud.com/index.php/f/41
             return (url.startsWith("$baseUrl/f/") || url.startsWith("$baseUrl/index.php/f/")) &&
                 Regex(".*/f/\\d*").matches(url)
         }
 
+        fun isInstanceInternalTalkUrl(baseUrl: String, url: String): Boolean {
+            // https://cloud.nextcloud.com/call/123456789
+            return (url.startsWith("$baseUrl/call/") || url.startsWith("$baseUrl/index.php/call/")) &&
+                Regex(".*/call/\\d*").matches(url)
+        }
+
         fun extractInstanceInternalFileShareFileId(url: String): String {
             // https://cloud.nextcloud.com/f/41
             return Uri.parse(url).lastPathSegment ?: ""
         }
 
+        fun extractRoomTokenFromTalkUrl(url: String): String {
+            // https://cloud.nextcloud.com/call/123456789
+            return Uri.parse(url).lastPathSegment ?: ""
+        }
+
         fun isInstanceInternalFileUrl(baseUrl: String, url: String): Boolean {
             // https://cloud.nextcloud.com/apps/files/?dir=/Engineering&fileid=41
             return (