diff --git a/app/src/main/kotlin/com/tutpro/baresip/Account.kt b/app/src/main/kotlin/com/tutpro/baresip/Account.kt
index b2eff2eb..7a7fd54c 100644
--- a/app/src/main/kotlin/com/tutpro/baresip/Account.kt
+++ b/app/src/main/kotlin/com/tutpro/baresip/Account.kt
@@ -40,6 +40,7 @@ class Account(val accp: Long) {
     var telProvider = Utils.aorDomain(aor)
     var resumeUri = ""
     var numericKeypad = false
+    var customParams = ""
 
     init {
 
@@ -80,6 +81,7 @@ class Account(val accp: Long) {
         if (Utils.paramExists(extra, "tel_provider"))
             telProvider = URLDecoder.decode(Utils.paramValue(extra, "tel_provider"), "UTF-8")
         numericKeypad = Utils.paramExists(extra, "numeric_keypad")
+        customParams = extra.substringAfter("last=empty").substringAfter(";")
     }
 
     fun print() : String {
@@ -166,7 +168,8 @@ class Account(val accp: Long) {
         if (blockUnknown)
             extra += ";block_unknown=yes"
 
-        extra += ";tel_provider=${URLEncoder.encode(telProvider, "UTF-8")}"
+        if (telProvider != "")
+            extra += ";tel_provider=${URLEncoder.encode(telProvider, "UTF-8")}"
 
         if (countryCode != "")
             extra += ";country_code=$countryCode"
@@ -177,8 +180,15 @@ class Account(val accp: Long) {
         if (numericKeypad)
             extra += ";numeric_keypad=yes"
 
-        if (extra !="")
-            res += ";extra=\"" + extra.substringAfter(";") + "\""
+        extra += ";last=empty"
+
+        if (customParams != "")
+            extra += ";$customParams"
+
+        res += ";extra=\"" + extra.substringAfter(";") + "\""
+
+        if (customParams != "")
+            res += ";$customParams"
 
         return res
     }
@@ -261,7 +271,7 @@ class Account(val accp: Long) {
                 BaresipService.filesPath + "/accounts",
                 accounts.toByteArray(Charsets.UTF_8)
             )
-            // Log.d(TAG, "Saved accounts '${accounts}' to '${BaresipService.filesPath}/accounts'")
+            Log.d(TAG, "Saved accounts '${accounts}' to '${BaresipService.filesPath}/accounts'")
         }
 
         fun ofAor(aor: String): Account? {
diff --git a/app/src/main/kotlin/com/tutpro/baresip/AccountScreen.kt b/app/src/main/kotlin/com/tutpro/baresip/AccountScreen.kt
index d1ec53ab..ed35a6b6 100644
--- a/app/src/main/kotlin/com/tutpro/baresip/AccountScreen.kt
+++ b/app/src/main/kotlin/com/tutpro/baresip/AccountScreen.kt
@@ -1194,6 +1194,35 @@ private fun AccountContent(
         }
     }
 
+    @Composable
+    fun CustomParams() {
+        val customParamsTitle = stringResource(R.string.custom_parameters)
+        val customParamsHelp = stringResource(R.string.custom_parameters_help)
+        val customParams by viewModel.customParams.collectAsState()
+        Row(
+            Modifier.fillMaxWidth().padding(top = 8.dp, end = 10.dp),
+            verticalAlignment = Alignment.CenterVertically,
+            horizontalArrangement = Arrangement.Start
+        ) {
+            OutlinedTextField(
+                value = customParams,
+                placeholder = { Text(customParamsTitle) },
+                onValueChange = { viewModel.customParams.value = it },
+                modifier = Modifier
+                    .fillMaxWidth()
+                    .clickable {
+                        alertTitle.value = customParamsTitle
+                        alertMessage.value = customParamsHelp
+                        showAlert.value = true
+                    },
+                singleLine = true,
+                textStyle = TextStyle(fontSize = 18.sp),
+                label = { Text(customParamsTitle) },
+                keyboardOptions = KeyboardOptions(keyboardType = KeyboardType.Text)
+            )
+        }
+    }
+
     if (showAlert.value) {
         AlertDialog(
             showDialog = showAlert,
@@ -1248,6 +1277,7 @@ private fun AccountContent(
         TelProvider()
         NumericKeypad()
         DefaultAccount()
+        CustomParams()
     }
 }
 
@@ -1615,6 +1645,12 @@ private fun checkOnClick(ctx: Context, viewModel: AccountViewModel, ua: UserAgen
         Log.d(TAG, "New numericKeyboard is ${acc.numericKeypad}")
     }
 
+    val newCustomParams = viewModel.customParams.value
+    if (newCustomParams != acc.customParams) {
+        acc.customParams = newCustomParams
+        Log.d(TAG, "New customParams is ${acc.customParams}")
+    }
+
     if (viewModel.defaultAccount.value) ua.makeDefault()
 
     Api.account_debug(acc.accp)
diff --git a/app/src/main/kotlin/com/tutpro/baresip/AccountViewModel.kt b/app/src/main/kotlin/com/tutpro/baresip/AccountViewModel.kt
index 907f1359..c4436578 100644
--- a/app/src/main/kotlin/com/tutpro/baresip/AccountViewModel.kt
+++ b/app/src/main/kotlin/com/tutpro/baresip/AccountViewModel.kt
@@ -28,9 +28,11 @@ class AccountViewModel: ViewModel() {
     val vmUri = MutableStateFlow("")
     val countryCode = MutableStateFlow("")
     val telProvider = MutableStateFlow("")
-    val defaultAccount = MutableStateFlow(false)
     val numericKeypad = MutableStateFlow(false)
 
+    val defaultAccount = MutableStateFlow(false)
+    val customParams = MutableStateFlow("")
+
     private var isLoaded = false
 
     fun loadAccount(acc: Account) {
@@ -63,5 +65,6 @@ class AccountViewModel: ViewModel() {
         telProvider.value = acc.telProvider
         numericKeypad.value = acc.numericKeypad
         defaultAccount.value = UserAgent.findAorIndex(acc.aor)!! == 0
+        customParams.value = acc.customParams
     }
 }
diff --git a/app/src/main/kotlin/com/tutpro/baresip/Utils.kt b/app/src/main/kotlin/com/tutpro/baresip/Utils.kt
index 272b674e..1a488777 100644
--- a/app/src/main/kotlin/com/tutpro/baresip/Utils.kt
+++ b/app/src/main/kotlin/com/tutpro/baresip/Utils.kt
@@ -328,6 +328,11 @@ object Utils {
         return false
     }
 
+    fun customParams(params: String): String {
+        return params.substringAfter("last=empty")
+
+    }
+
     fun checkHostPortParams(hpp: String) : Boolean {
         val restParams = hpp.split(";", limit = 2)
         return if (restParams.size == 1)
diff --git a/app/src/main/res/values-fi/strings.xml b/app/src/main/res/values-fi/strings.xml
index 3a9bacc3..01d7ea78 100644
--- a/app/src/main/res/values-fi/strings.xml
+++ b/app/src/main/res/values-fi/strings.xml
@@ -240,6 +240,9 @@
     <string name="default_account_help">Jos merkitty, niin tämä tili on
         valittuna, kun baresip käynnistetään.
     </string>
+    <string name="custom_parameters">Räätälöidyt parametrit</string>
+    <string name="custom_parameters_help">Puolipisteellä toisistaan eroteltu lista
+        räätälöityjä tilin parametrejä</string>
     <!-- Accounts Activity -->
     <string name="accounts">Tilit</string>
     <string name="new_account">Uuden tilin SIP URI</string>
diff --git a/app/src/main/res/values/strings.xml b/app/src/main/res/values/strings.xml
index c7da948d..aaf08402 100644
--- a/app/src/main/res/values/strings.xml
+++ b/app/src/main/res/values/strings.xml
@@ -229,6 +229,8 @@
     <string name="default_account">Default Account</string>
     <string name="default_account_help">If checked, this account is selected when baresip is started.
     </string>
+    <string name="custom_parameters">Custom Parameters</string>
+    <string name="custom_parameters_help">Semicolor separeted list of custom account parameters</string>
     <!-- Accounts Activity -->
     <string name="accounts">Accounts</string>
     <string name="new_account">SIP URI of New Account</string>