diff --git a/app/src/main/kotlin/com/tutpro/baresip/AboutActivity.kt b/app/src/main/kotlin/com/tutpro/baresip/AboutActivity.kt
index 5071547f..ea6ed289 100644
--- a/app/src/main/kotlin/com/tutpro/baresip/AboutActivity.kt
+++ b/app/src/main/kotlin/com/tutpro/baresip/AboutActivity.kt
@@ -69,7 +69,7 @@ class AboutActivity : ComponentActivity() {
 
         Utils.addActivity("about")
 
-        val aboutTitle = String.format(getString(R.string.about_title))
+        val aboutTitle = getString(R.string.about_title)
         val aboutText = String.format(getString(R.string.about_text),
             BuildConfig.VERSION_NAME)
 
diff --git a/app/src/main/kotlin/com/tutpro/baresip/AccountActivity.kt b/app/src/main/kotlin/com/tutpro/baresip/AccountActivity.kt
index ce1a0f54..507823d8 100644
--- a/app/src/main/kotlin/com/tutpro/baresip/AccountActivity.kt
+++ b/app/src/main/kotlin/com/tutpro/baresip/AccountActivity.kt
@@ -1248,7 +1248,7 @@ class AccountActivity : ComponentActivity() {
                 showPasswordDialog = showPasswordDialog,
                 password = password,
                 keyboardController = keyboardController,
-                title = getString(R.string.authentication_password),
+                title = stringResource(R.string.authentication_password),
                 okAction = {
                     if (password.value != "") {
                         BaresipService.aorPasswords[acc.aor] = password.value
diff --git a/app/src/main/kotlin/com/tutpro/baresip/AccountsActivity.kt b/app/src/main/kotlin/com/tutpro/baresip/AccountsActivity.kt
index 5b95d59f..950714e0 100644
--- a/app/src/main/kotlin/com/tutpro/baresip/AccountsActivity.kt
+++ b/app/src/main/kotlin/com/tutpro/baresip/AccountsActivity.kt
@@ -115,7 +115,7 @@ class AccountsActivity : ComponentActivity() {
             onBackPressedDispatcher.addCallback(this, onBackPressedCallback)
         }
 
-        val title = String.format(getString(R.string.accounts))
+        val title = getString(R.string.accounts)
 
         aor = intent.getStringExtra("aor")!!
         Utils.addActivity("accounts,$aor")
@@ -183,11 +183,11 @@ class AccountsActivity : ComponentActivity() {
 
         AlertDialog(
             showDialog = showDialog,
-            title = getString(R.string.confirmation),
+            title = stringResource(R.string.confirmation),
             message = message.value,
-            positiveButtonText = getString(R.string.delete),
+            positiveButtonText = stringResource(R.string.delete),
             onPositiveClicked = positiveAction.value,
-            negativeButtonText = getString(R.string.cancel),
+            negativeButtonText = stringResource(R.string.cancel),
         )
 
         if (showAlert.value) {
@@ -281,7 +281,7 @@ class AccountsActivity : ComponentActivity() {
         ) {
             OutlinedTextField(
                 value = newAor,
-                placeholder = { Text(text = getString(R.string.new_account)) },
+                placeholder = { Text(text = stringResource(R.string.new_account)) },
                 onValueChange = { newAor = it },
                 modifier = Modifier
                     .weight(1f)
diff --git a/app/src/main/kotlin/com/tutpro/baresip/CallDetailsActivity.kt b/app/src/main/kotlin/com/tutpro/baresip/CallDetailsActivity.kt
index dff8516d..b5a66383 100644
--- a/app/src/main/kotlin/com/tutpro/baresip/CallDetailsActivity.kt
+++ b/app/src/main/kotlin/com/tutpro/baresip/CallDetailsActivity.kt
@@ -47,6 +47,7 @@ import androidx.compose.runtime.remember
 import androidx.compose.ui.Alignment
 import androidx.compose.ui.Modifier
 import androidx.compose.ui.res.painterResource
+import androidx.compose.ui.res.stringResource
 import androidx.compose.ui.text.font.FontWeight
 import androidx.compose.ui.text.style.TextAlign
 import androidx.compose.ui.unit.dp
@@ -115,7 +116,7 @@ class CallDetailsActivity : ComponentActivity() {
                     modifier = Modifier.fillMaxSize(),
                     color = LocalCustomColors.current.background
                 ) {
-                    CallDetailsScreen(this, getString(R.string.call_details)) { goBack() }
+                    CallDetailsScreen(this, stringResource(R.string.call_details)) { goBack() }
                 }
             }
         }
@@ -175,7 +176,7 @@ class CallDetailsActivity : ComponentActivity() {
 
     @Composable
     fun Peer(ctx: Context, peer: String, account: Account) {
-        val headerText = getString(R.string.peer) + " " +
+        val headerText = stringResource(R.string.peer) + " " +
                 Utils.friendlyUri(ctx, peer, account)
         Text(
             text = headerText,
@@ -190,20 +191,20 @@ class CallDetailsActivity : ComponentActivity() {
     @Composable
     fun Calls(ctx: Context) {
         Row(verticalAlignment = Alignment.CenterVertically) {
-            Text(text = getString(R.string.direction),
+            Text(text = stringResource(R.string.direction),
                 color = LocalCustomColors.current.itemText,
                 fontSize = 16.sp,
                 fontWeight = FontWeight.SemiBold,
                 modifier = Modifier.width(96.dp)
             )
             Spacer(modifier = Modifier.width(6.dp))
-            Text(text = getString(R.string.time),
+            Text(text = stringResource(R.string.time),
                 color = LocalCustomColors.current.itemText,
                 fontSize = 16.sp,
                 fontWeight = FontWeight.SemiBold
             )
             Spacer(modifier = Modifier.weight(1f))
-            Text(text = getString(R.string.calls_duration),
+            Text(text = stringResource(R.string.calls_duration),
                 modifier = Modifier.padding(end = 12.dp),
                 color = LocalCustomColors.current.itemText,
                 fontSize = 16.sp,
@@ -232,7 +233,7 @@ class CallDetailsActivity : ComponentActivity() {
                         modifier = Modifier.width(64.dp)
                     )
                     Spacer(modifier = Modifier.width(38.dp))
-                    val durationText = startTime(ctx, detail)
+                    val durationText = startTime(detail)
                     Spacer(modifier = Modifier.weight(1f))
                     Duration(ctx, detail, durationText)
                 }
@@ -241,14 +242,14 @@ class CallDetailsActivity : ComponentActivity() {
     }
 
     @Composable
-    fun startTime(ctx: Context, detail: CallRow.Details): String {
+    fun startTime(detail: CallRow.Details): String {
         val startTime = detail.startTime
         val stopTime = detail.stopTime
         val startTimeText: String
         val durationText: String
         val stopText = if (DateUtils.isToday(stopTime.timeInMillis)) {
             val fmt = DateFormat.getTimeInstance(DateFormat.MEDIUM)
-            ctx.getString(R.string.today) + " " + fmt.format(stopTime.time)
+            stringResource(R.string.today) + " " + fmt.format(stopTime.time)
         } else {
             val fmt = DateFormat.getDateTimeInstance()
             fmt.format(stopTime.time)
@@ -263,7 +264,7 @@ class CallDetailsActivity : ComponentActivity() {
             } else {
                 val startText = if (DateUtils.isToday(startTime.timeInMillis)) {
                     val fmt = DateFormat.getTimeInstance(DateFormat.MEDIUM)
-                    ctx.getString(R.string.today) + " " + fmt.format(startTime.time)
+                    stringResource(R.string.today) + " " + fmt.format(startTime.time)
                 } else {
                     val fmt = DateFormat.getDateTimeInstance()
                     fmt.format(startTime.time)
@@ -285,7 +286,7 @@ class CallDetailsActivity : ComponentActivity() {
 
         AlertDialog(
             showDialog = showDialog,
-            title = getString(R.string.playing_recording),
+            title = stringResource(R.string.playing_recording),
             message = "",
         )
 
diff --git a/app/src/main/kotlin/com/tutpro/baresip/CallsActivity.kt b/app/src/main/kotlin/com/tutpro/baresip/CallsActivity.kt
index db5af0a6..a9bdb2e7 100644
--- a/app/src/main/kotlin/com/tutpro/baresip/CallsActivity.kt
+++ b/app/src/main/kotlin/com/tutpro/baresip/CallsActivity.kt
@@ -57,6 +57,7 @@ import androidx.compose.ui.Modifier
 import androidx.compose.ui.draw.clip
 import androidx.compose.ui.layout.ContentScale
 import androidx.compose.ui.res.painterResource
+import androidx.compose.ui.res.stringResource
 import androidx.compose.ui.text.font.FontWeight
 import androidx.compose.ui.text.style.TextAlign
 import androidx.compose.ui.text.style.TextOverflow
@@ -103,7 +104,7 @@ class CallsActivity : ComponentActivity() {
             onBackPressedDispatcher.addCallback(this, onBackPressedCallback)
         }
 
-        val title = String.format(getString(R.string.call_history))
+        val title = getString(R.string.call_history)
 
         aor = intent.getStringExtra("aor")!!
         Utils.addActivity("calls,$aor")
@@ -147,19 +148,19 @@ class CallsActivity : ComponentActivity() {
 
         var expanded by remember { mutableStateOf(false) }
 
-        val delete = String.format(getString(R.string.delete))
-        val disable = String.format(getString(R.string.disable_history))
-        val enable = String.format(getString(R.string.enable_history))
+        val delete = stringResource(R.string.delete)
+        val disable = stringResource(R.string.disable_history)
+        val enable = stringResource(R.string.enable_history)
 
         val showDialog = remember { mutableStateOf(false) }
         val positiveAction = remember { mutableStateOf({}) }
 
         AlertDialog(
             showDialog = showDialog,
-            title = getString(R.string.confirmation),
-            message = String.format(getString(R.string.delete_history_alert), aor.substringAfter(":")),
-            positiveButtonText = getString(R.string.delete),
-            negativeButtonText = getString(R.string.cancel),
+            title = stringResource(R.string.confirmation),
+            message = String.format(stringResource(R.string.delete_history_alert), aor.substringAfter(":")),
+            positiveButtonText = stringResource(R.string.delete),
+            negativeButtonText = stringResource(R.string.cancel),
             onPositiveClicked = positiveAction.value,
         )
 
@@ -234,7 +235,7 @@ class CallsActivity : ComponentActivity() {
 
     @Composable
     fun Account(account: Account) {
-        val headerText = getString(R.string.account) + " " +
+        val headerText = stringResource(R.string.account) + " " +
                 if (account.nickName.value != "")
                     account.nickName.value
                 else
@@ -264,13 +265,13 @@ class CallsActivity : ComponentActivity() {
 
         AlertDialog(
             showDialog = showDialog,
-            title = getString(R.string.confirmation),
+            title = stringResource(R.string.confirmation),
             message = message.value,
             positiveButtonText = positiveButtonText.value,
             onPositiveClicked = positiveAction.value,
             neutralButtonText = neutralButtonText.value,
             onNeutralClicked = neutralAction.value,
-            negativeButtonText = getString(R.string.cancel)
+            negativeButtonText = stringResource(R.string.cancel)
         )
 
         val lazyListState = rememberLazyListState()
@@ -301,8 +302,8 @@ class CallsActivity : ComponentActivity() {
                                 onClick = {
                                     val peerUri = callRow.peerUri
                                     val peerName = Utils.friendlyUri(ctx, peerUri, account)
-                                    message.value = String.format(ctx.getString(R.string.contact_action_question), peerName)
-                                    positiveButtonText.value = ctx.getString(R.string.call)
+                                    message.value = String.format(getString(R.string.contact_action_question), peerName)
+                                    positiveButtonText.value = getString(R.string.call)
                                     positiveAction.value = {
                                         BaresipService.activities.remove("calls,$aor")
                                         MainActivity.activityAor = aor
@@ -314,7 +315,7 @@ class CallsActivity : ComponentActivity() {
                                         i.putExtra("peer", peerUri)
                                         startActivity(i)
                                     }
-                                    neutralButtonText.value = ctx.getString(R.string.send_message)
+                                    neutralButtonText.value = getString(R.string.send_message)
                                     neutralAction.value = {
                                         BaresipService.activities.remove("calls,$aor")
                                         MainActivity.activityAor = aor
diff --git a/app/src/main/kotlin/com/tutpro/baresip/ChatActivity.kt b/app/src/main/kotlin/com/tutpro/baresip/ChatActivity.kt
index c9814ade..4c56f8e7 100644
--- a/app/src/main/kotlin/com/tutpro/baresip/ChatActivity.kt
+++ b/app/src/main/kotlin/com/tutpro/baresip/ChatActivity.kt
@@ -287,13 +287,13 @@ class ChatActivity : ComponentActivity() {
 
         AlertDialog(
             showDialog = showDialog,
-            title = getString(R.string.confirmation),
+            title = stringResource(R.string.confirmation),
             message = dialogMessage.value,
             positiveButtonText = positiveButtonText.value,
             onPositiveClicked = positiveAction.value,
             neutralButtonText = neutralButtonText.value,
             onNeutralClicked = neutralAction.value,
-            negativeButtonText = getString(R.string.cancel)
+            negativeButtonText = stringResource(R.string.cancel)
         )
 
         val lazyListState = rememberLazyListState()
@@ -336,7 +336,7 @@ class ChatActivity : ComponentActivity() {
                         chatPeer
                 }
                 else
-                    ctx.getString(R.string.you)
+                    stringResource(R.string.you)
                 var info: String
                 val cal = GregorianCalendar()
                 cal.timeInMillis = message.timeStamp
@@ -345,12 +345,12 @@ class ChatActivity : ComponentActivity() {
                 else
                     DateFormat.getDateInstance(DateFormat.SHORT)
                 info = fmt.format(cal.time)
-                if (info.length < 6) info = "${ctx.getString(R.string.today)} $info"
+                if (info.length < 6) info = "${stringResource(R.string.today)} $info"
                 if (message.direction == MESSAGE_UP_FAIL) {
                     info = if (message.responseCode != 0)
-                        "$info - ${ctx.getString(R.string.message_failed)}: " + "${message.responseCode} ${message.responseReason}"
+                        "$info - ${stringResource(R.string.message_failed)}: " + "${message.responseCode} ${message.responseReason}"
                     else
-                        "$info - ${ctx.getString(R.string.sending_failed)}"
+                        "$info - ${stringResource(R.string.sending_failed)}"
                 }
                 Row(
                     verticalAlignment = Alignment.CenterVertically,
@@ -359,10 +359,10 @@ class ChatActivity : ComponentActivity() {
                     Button(
                         onClick = {
                             if (chatPeer == peerUri) {
-                                dialogMessage.value = String.format(ctx.getString(R.string.long_message_question),
+                                dialogMessage.value = String.format(getString(R.string.long_message_question),
                                     peerUri
                                 )
-                                positiveButtonText.value = ctx.getString(R.string.add_contact)
+                                positiveButtonText.value = getString(R.string.add_contact)
                                 positiveAction.value = {
                                     val i = Intent(ctx, BaresipContactActivity::class.java)
                                     val b = Bundle()
@@ -371,15 +371,15 @@ class ChatActivity : ComponentActivity() {
                                     i.putExtras(b)
                                     ctx.startActivity(i)
                                 }
-                                neutralButtonText.value = ctx.getString(R.string.delete)
+                                neutralButtonText.value = getString(R.string.delete)
                                 neutralAction.value = {
                                     message.delete()
                                     _chatMessages.value = uaPeerMessages(aor, peerUri)
                                 }
                             }
                             else {
-                                dialogMessage.value = ctx.getString(R.string.short_message_question)
-                                positiveButtonText.value = ctx.getString(R.string.delete)
+                                dialogMessage.value = getString(R.string.short_message_question)
+                                positiveButtonText.value = getString(R.string.delete)
                                 positiveAction.value = {
                                     message.delete()
                                     _chatMessages.value = uaPeerMessages(aor, peerUri)
@@ -455,9 +455,9 @@ class ChatActivity : ComponentActivity() {
 
         AlertDialog(
             showDialog = showDialog,
-            title = getString(R.string.notice),
+            title = stringResource(R.string.notice),
             message = dialogMessage.value,
-            positiveButtonText = getString(R.string.ok),
+            positiveButtonText = stringResource(R.string.ok),
         )
 
         var newMessage by remember { mutableStateOf("") }
@@ -470,7 +470,7 @@ class ChatActivity : ComponentActivity() {
             val keyboardController = LocalSoftwareKeyboardController.current
             OutlinedTextField(
                 value = newMessage,
-                placeholder = { Text(text = getString(R.string.new_message)) },
+                placeholder = { Text(text = stringResource(R.string.new_message)) },
                 onValueChange = { newMessage = it },
                 modifier = Modifier
                     .weight(1f)
diff --git a/app/src/main/kotlin/com/tutpro/baresip/ChatsActivity.kt b/app/src/main/kotlin/com/tutpro/baresip/ChatsActivity.kt
index bd35d34d..9b4d7d83 100644
--- a/app/src/main/kotlin/com/tutpro/baresip/ChatsActivity.kt
+++ b/app/src/main/kotlin/com/tutpro/baresip/ChatsActivity.kt
@@ -179,21 +179,21 @@ class ChatsActivity: ComponentActivity() {
 
         var expanded by remember { mutableStateOf(false) }
 
-        val delete = String.format(getString(R.string.delete))
+        val delete = stringResource(R.string.delete)
 
         val showDialog = remember { mutableStateOf(false) }
         val positiveAction = remember { mutableStateOf({}) }
 
         AlertDialog(
             showDialog = showDialog,
-            title = getString(R.string.confirmation),
+            title = stringResource(R.string.confirmation),
             message = String.format(
-                getString(R.string.delete_chats_alert),
+                stringResource(R.string.delete_chats_alert),
                 aor.substringAfter(":")
             ),
-            positiveButtonText = getString(R.string.delete),
+            positiveButtonText = stringResource(R.string.delete),
             onPositiveClicked = positiveAction.value,
-            negativeButtonText = getString(R.string.cancel),
+            negativeButtonText = stringResource(R.string.cancel),
         )
 
         TopAppBar(
@@ -275,7 +275,7 @@ class ChatsActivity: ComponentActivity() {
 
     @Composable
     fun Account(account: Account) {
-        val headerText = getString(R.string.account) + " " +
+        val headerText = stringResource(R.string.account) + " " +
                 if (account.nickName.value != "")
                     account.nickName.value
                 else
@@ -303,13 +303,13 @@ class ChatsActivity: ComponentActivity() {
         if (showDialog.value)
             AlertDialog(
                 showDialog = showDialog,
-                title = getString(R.string.confirmation),
+                title = stringResource(R.string.confirmation),
                 message = dialogMessage.value,
                 positiveButtonText = positiveButtonText.value,
                 onPositiveClicked = positiveAction.value,
                 neutralButtonText = neutralButtonText.value,
                 onNeutralClicked = neutralAction.value,
-                negativeButtonText = getString(R.string.cancel)
+                negativeButtonText = stringResource(R.string.cancel)
             )
 
         val lazyListState = rememberLazyListState()
@@ -483,10 +483,10 @@ class ChatsActivity: ComponentActivity() {
 
         SelectableAlertDialog(
             openDialog = showDialog,
-            title = getString(R.string.choose_destination_uri),
+            title = stringResource(R.string.choose_destination_uri),
             items = items.value,
             onItemClicked = itemAction.value,
-            neutralButtonText = getString(R.string.cancel),
+            neutralButtonText = stringResource(R.string.cancel),
             onNeutralClicked = {}
         )
 
@@ -558,7 +558,7 @@ class ChatsActivity: ComponentActivity() {
                 OutlinedTextField(
                     value = newPeer,
                     placeholder = {
-                        Text(text = getString(R.string.new_chat_peer))
+                        Text(text = stringResource(R.string.new_chat_peer))
                     },
                     onValueChange = {
                         newPeer = it
diff --git a/app/src/main/kotlin/com/tutpro/baresip/CodecsActivity.kt b/app/src/main/kotlin/com/tutpro/baresip/CodecsActivity.kt
index 83d583d4..efd0390c 100644
--- a/app/src/main/kotlin/com/tutpro/baresip/CodecsActivity.kt
+++ b/app/src/main/kotlin/com/tutpro/baresip/CodecsActivity.kt
@@ -150,7 +150,7 @@ class CodecsActivity : ComponentActivity() {
                 TopAppBar(
                     title = {
                         Text(
-                            text = getString(R.string.codecs),
+                            text = stringResource(R.string.codecs),
                             color = LocalCustomColors.current.light,
                             fontWeight = FontWeight.Bold
                         )
diff --git a/app/src/main/kotlin/com/tutpro/baresip/ConfigActivity.kt b/app/src/main/kotlin/com/tutpro/baresip/ConfigActivity.kt
index 750ebc29..72263ed8 100644
--- a/app/src/main/kotlin/com/tutpro/baresip/ConfigActivity.kt
+++ b/app/src/main/kotlin/com/tutpro/baresip/ConfigActivity.kt
@@ -219,7 +219,7 @@ class ConfigActivity : ComponentActivity() {
             onBackPressedDispatcher.addCallback(this, onBackPressedCallback)
         }
 
-        val title = String.format(getString(R.string.configuration))
+        val title = getString(R.string.configuration)
 
         Utils.addActivity("config")
 
@@ -672,9 +672,9 @@ class ConfigActivity : ComponentActivity() {
         if (showAlertDialog.value)
             AlertDialog(
                 showDialog = showAlertDialog,
-                title = getString(R.string.notice),
-                message = getString(R.string.no_read_permission),
-                positiveButtonText = getString(R.string.ok),
+                title = stringResource(R.string.notice),
+                message = stringResource(R.string.no_read_permission),
+                positiveButtonText = stringResource(R.string.ok),
                 onPositiveClicked = { requestPermissionLauncher.launch(Manifest.permission.READ_EXTERNAL_STORAGE) },
                 negativeButtonText = "",
                 onNegativeClicked = {},
@@ -1019,9 +1019,9 @@ class ConfigActivity : ComponentActivity() {
             if (showAlertDialog.value)
                 AlertDialog(
                     showDialog = showAlertDialog,
-                    title = getString(R.string.notice),
-                    message = getString(R.string.no_android_contacts),
-                    positiveButtonText = getString(R.string.ok),
+                    title = stringResource(R.string.notice),
+                    message = stringResource(R.string.no_android_contacts),
+                    positiveButtonText = stringResource(R.string.ok),
                     onPositiveClicked = { requestPermissionsLauncher.launch(
                         arrayOf(
                             Manifest.permission.READ_CONTACTS,
diff --git a/app/src/main/kotlin/com/tutpro/baresip/ContactsActivity.kt b/app/src/main/kotlin/com/tutpro/baresip/ContactsActivity.kt
index 4ec15d1a..4e99c95b 100644
--- a/app/src/main/kotlin/com/tutpro/baresip/ContactsActivity.kt
+++ b/app/src/main/kotlin/com/tutpro/baresip/ContactsActivity.kt
@@ -112,7 +112,7 @@ class ContactsActivity : ComponentActivity() {
             onBackPressedDispatcher.addCallback(this, onBackPressedCallback)
         }
 
-        val title = String.format(getString(R.string.contacts))
+        val title = getString(R.string.contacts)
 
         aor = intent.getStringExtra("aor")!!
         Utils.addActivity("contacts,$aor")
@@ -221,13 +221,13 @@ class ContactsActivity : ComponentActivity() {
         if (showDialog.value)
             AlertDialog(
                 showDialog = showDialog,
-                title = getString(R.string.confirmation),
+                title = stringResource(R.string.confirmation),
                 message = dialogMessage.value,
                 positiveButtonText = positiveText.value,
                 onPositiveClicked = positiveAction.value,
                 neutralButtonText = neutralText.value,
                 onNeutralClicked = neutralAction.value,
-                negativeButtonText = getString(R.string.cancel)
+                negativeButtonText = stringResource(R.string.cancel)
             )
 
         val lazyListState = rememberLazyListState()
@@ -299,10 +299,10 @@ class ContactsActivity : ComponentActivity() {
                                     .combinedClickable(
                                         onClick = {
                                             dialogMessage.value = String.format(
-                                                ctx.getString(R.string.contact_action_question),
+                                                getString(R.string.contact_action_question),
                                                 name
                                             )
-                                            positiveText.value = ctx.getString(R.string.call)
+                                            positiveText.value = getString(R.string.call)
                                             positiveAction.value = {
                                                 val i = Intent(ctx, MainActivity::class.java)
                                                 i.flags =
@@ -319,7 +319,7 @@ class ContactsActivity : ComponentActivity() {
                                                     (ctx as Activity).startActivity(i)
                                                 }
                                             }
-                                            neutralText.value = ctx.getString(R.string.send_message)
+                                            neutralText.value = getString(R.string.send_message)
                                             neutralAction.value = {
                                                 val i = Intent(
                                                     ctx,
@@ -343,10 +343,10 @@ class ContactsActivity : ComponentActivity() {
                                         },
                                         onLongClick = {
                                             dialogMessage.value = String.format(
-                                                ctx.getString(R.string.contact_delete_question),
+                                                getString(R.string.contact_delete_question),
                                                 name
                                             )
-                                            positiveText.value = ctx.getString(R.string.delete)
+                                            positiveText.value = getString(R.string.delete)
                                             positiveAction.value = {
                                                 val id = contact.id
                                                 val avatarFile = File(
@@ -416,10 +416,10 @@ class ContactsActivity : ComponentActivity() {
                                         },
                                         onLongClick = {
                                             dialogMessage.value = String.format(
-                                                ctx.getString(R.string.contact_delete_question),
+                                                getString(R.string.contact_delete_question),
                                                 name
                                             )
-                                            positiveText.value = ctx.getString(R.string.delete)
+                                            positiveText.value = getString(R.string.delete)
                                             positiveAction.value = {
                                                 ctx.contentResolver.delete(
                                                     ContactsContract.RawContacts.CONTENT_URI,
diff --git a/app/src/main/kotlin/com/tutpro/baresip/MainActivity.kt b/app/src/main/kotlin/com/tutpro/baresip/MainActivity.kt
index 694e73f1..6537f749 100644
--- a/app/src/main/kotlin/com/tutpro/baresip/MainActivity.kt
+++ b/app/src/main/kotlin/com/tutpro/baresip/MainActivity.kt
@@ -517,7 +517,7 @@ class MainActivity : ComponentActivity() {
         Scaffold(
             modifier = Modifier.safeDrawingPadding(),
             containerColor = LocalCustomColors.current.background,
-            topBar = { TopAppBar(ctx, String.format(getString(R.string.baresip))) },
+            topBar = { TopAppBar(ctx, getString(R.string.baresip)) },
             bottomBar = { BottomBar(ctx) },
             content = { contentPadding ->
                 MainContent(ctx, contentPadding)
@@ -551,20 +551,20 @@ class MainActivity : ComponentActivity() {
         if (showDialog.value)
             AlertDialog(
                 showDialog = showDialog,
-                title = getString(R.string.confirmation),
+                title = stringResource(R.string.confirmation),
                 message = dialogMessage.value,
                 positiveButtonText = positiveText.value,
                 onPositiveClicked = onPositiveClicked.value,
-                negativeButtonText = getString(R.string.cancel),
+                negativeButtonText = stringResource(R.string.cancel),
                 onNegativeClicked = onNegativeClicked.value
             )
 
         SelectableAlertDialog(
             openDialog = showSelectItemDialog,
-            title = getString(R.string.choose_destination_uri),
+            title = stringResource(R.string.choose_destination_uri),
             items = items.value,
             onItemClicked = itemAction.value,
-            neutralButtonText = getString(R.string.cancel),
+            neutralButtonText = stringResource(R.string.cancel),
             onNeutralClicked = {}
         )
 
@@ -656,14 +656,14 @@ class MainActivity : ComponentActivity() {
         var recImage by remember { mutableStateOf(recOffImage) }
         var menuExpanded by remember { mutableStateOf(false) }
 
-        val about = String.format(getString(R.string.about))
-        val settings = String.format(getString(R.string.configuration))
-        val accounts = String.format(getString(R.string.accounts))
-        val backup = String.format(getString(R.string.backup))
-        val restore = String.format(getString(R.string.restore))
-        val logcat = String.format(getString(R.string.logcat))
-        val restart = String.format(getString(R.string.restart))
-        val quit = String.format(getString(R.string.quit))
+        val about = stringResource(R.string.about)
+        val settings = stringResource(R.string.configuration)
+        val accounts = stringResource(R.string.accounts)
+        val backup = stringResource(R.string.backup)
+        val restore = stringResource(R.string.restore)
+        val logcat = stringResource(R.string.logcat)
+        val restart = stringResource(R.string.restart)
+        val quit = stringResource(R.string.quit)
 
         TopAppBar(
             title = {
@@ -1441,7 +1441,7 @@ class MainActivity : ComponentActivity() {
                                             horizontalArrangement = Arrangement.Center,
                                         ) {
                                             Text(
-                                                text = ContextCompat.getString(ctx, R.string.blind),
+                                                text = stringResource(R.string.blind),
                                                 color = LocalCustomColors.current.alert,
                                                 modifier = Modifier.padding(16.dp),
                                             )
@@ -1451,7 +1451,7 @@ class MainActivity : ComponentActivity() {
                                                 blindChecked.value = true
                                             }
                                             Text(
-                                                text = ContextCompat.getString(ctx, R.string.attended),
+                                                text = stringResource(R.string.attended),
                                                 color = LocalCustomColors.current.alert,
                                                 modifier = Modifier.padding(16.dp),
                                             )
@@ -1897,7 +1897,7 @@ class MainActivity : ComponentActivity() {
                 shape = RoundedCornerShape(20)
            ) {
                 Text(
-                    text = getString(R.string.call_is_on_hold),
+                    text = stringResource(R.string.call_is_on_hold),
                     fontSize = 18.sp,
                     color = LocalCustomColors.current.itemText,
                 )
@@ -1917,8 +1917,8 @@ class MainActivity : ComponentActivity() {
                         showPasswordDialog = showPasswordsDialog,
                         password = password,
                         keyboardController = keyboardController,
-                        title = getString(R.string.authentication_password),
-                        message = getString(R.string.account) + " " + Utils.plainAor(aor),
+                        title = stringResource(R.string.authentication_password),
+                        message = stringResource(R.string.account) + " " + Utils.plainAor(aor),
                         okAction = {
                             if (password.value != "")
                                 BaresipService.aorPasswords[aor] = password.value