diff --git a/app/src/main/cpp/baresip.c b/app/src/main/cpp/baresip.c
index 9216b74d..00bbfc7b 100644
--- a/app/src/main/cpp/baresip.c
+++ b/app/src/main/cpp/baresip.c
@@ -586,6 +586,22 @@ Java_com_tutpro_baresip_AccountKt_account_1aor(JNIEnv *env, jobject thiz, jstrin
         return (*env)->NewStringUTF(env, "");
 }
 
+JNIEXPORT jstring JNICALL
+Java_com_tutpro_baresip_AccountKt_account_1uri(JNIEnv *env, jobject thiz, jstring javaAcc) {
+    const char *native_acc = (*env)->GetStringUTFChars(env, javaAcc, 0);
+    struct account *acc = (struct account *)strtoul(native_acc, NULL, 10);
+    (*env)->ReleaseStringUTFChars(env, javaAcc, native_acc);
+    const struct sip_addr *addr = account_laddr(acc);
+    char uri_buf[512];
+    int l;
+    l = re_snprintf(&(uri_buf[0]), 511, "%H", uri_encode, addr->uri);
+    if (l != -1)
+        uri_buf[l] = '\0';
+    else
+        uri_buf[0] = '\0';
+    return (*env)->NewStringUTF(env, uri_buf);
+}
+
 JNIEXPORT jstring JNICALL
 Java_com_tutpro_baresip_AccountKt_account_1auth_1user(JNIEnv *env, jobject thiz, jstring javaAcc) {
     const char *native_acc = (*env)->GetStringUTFChars(env, javaAcc, 0);
diff --git a/app/src/main/kotlin/com/tutpro/baresip/Account.kt b/app/src/main/kotlin/com/tutpro/baresip/Account.kt
index 0aa3d1ec..cebe8833 100644
--- a/app/src/main/kotlin/com/tutpro/baresip/Account.kt
+++ b/app/src/main/kotlin/com/tutpro/baresip/Account.kt
@@ -8,6 +8,7 @@ class Account(val accp: String) {
 
     var displayName = account_display_name(accp)
     val aor = account_aor(accp)
+    val uri = account_uri(accp)
     var authUser = account_auth_user(accp)
     var authPass = account_auth_pass(accp)
     var outbound = ArrayList<String>()
@@ -207,12 +208,21 @@ class Account(val accp: String) {
             return false
         }
 
+        fun aor(accp: String): String {
+            return account_aor(accp)
+        }
+
+        fun uri(accp: String): String {
+            return account_uri(accp)
+        }
+
     }
 }
 
 external fun account_set_display_name(acc: String, dn: String): Int
 external fun account_display_name(acc: String): String
 external fun account_aor(acc: String): String
+external fun account_uri(acc: String): String
 external fun account_auth_user(acc: String): String
 external fun account_set_auth_user(acc: String, user: String): Int
 external fun account_auth_pass(acc: String): String
diff --git a/app/src/main/kotlin/com/tutpro/baresip/AccountActivity.kt b/app/src/main/kotlin/com/tutpro/baresip/AccountActivity.kt
index 972b3875..44a683f4 100644
--- a/app/src/main/kotlin/com/tutpro/baresip/AccountActivity.kt
+++ b/app/src/main/kotlin/com/tutpro/baresip/AccountActivity.kt
@@ -16,6 +16,7 @@ class AccountActivity : AppCompatActivity() {
 
     internal lateinit var acc: Account
     internal lateinit var ua: UserAgent
+    internal lateinit var uri: TextView
     internal lateinit var displayName: EditText
     internal lateinit var aor: String
     internal lateinit var authUser: EditText
@@ -47,7 +48,10 @@ class AccountActivity : AppCompatActivity() {
         uaIndex = UserAgent.findAorIndex(aor)!!
         ua = UserAgent.uas()[uaIndex]
 
-        setTitle(aor.replace("sip:", ""))
+        setTitle(aor.split(":")[1])
+
+        uri = findViewById(R.id.Uri) as TextView
+        uri.setText(acc.uri)
 
         displayName = findViewById(R.id.DisplayName) as EditText
         displayName.setText(acc.displayName)
diff --git a/app/src/main/kotlin/com/tutpro/baresip/AccountListAdapter.kt b/app/src/main/kotlin/com/tutpro/baresip/AccountListAdapter.kt
index e68efb70..b679b0f3 100644
--- a/app/src/main/kotlin/com/tutpro/baresip/AccountListAdapter.kt
+++ b/app/src/main/kotlin/com/tutpro/baresip/AccountListAdapter.kt
@@ -22,7 +22,7 @@ class AccountListAdapter(private val cxt: Context, private val rows: ArrayList<A
         val inflater = context.getSystemService(Context.LAYOUT_INFLATER_SERVICE) as LayoutInflater
         val rowView = inflater.inflate(R.layout.account_row, parent, false)
         val aorView = rowView.findViewById(R.id.aor) as TextView
-        aorView.text = row.aor
+        aorView.text = row.aor.split(":")[0]
         aorView.textSize = 20f
         aorView.setPadding(6, 6, 0, 6)
         aorView.setOnClickListener { _ ->
diff --git a/app/src/main/kotlin/com/tutpro/baresip/AccountsActivity.kt b/app/src/main/kotlin/com/tutpro/baresip/AccountsActivity.kt
index 91514c67..cf4f6422 100644
--- a/app/src/main/kotlin/com/tutpro/baresip/AccountsActivity.kt
+++ b/app/src/main/kotlin/com/tutpro/baresip/AccountsActivity.kt
@@ -4,6 +4,7 @@ import android.app.Activity
 import android.content.Intent
 import android.os.Bundle
 import android.support.v7.app.AppCompatActivity
+import android.view.Menu
 import android.view.MenuItem
 import android.widget.*
 
@@ -65,10 +66,16 @@ class AccountsActivity : AppCompatActivity() {
 
     }
 
+
     override fun onOptionsItemSelected(item: MenuItem): Boolean {
 
         when (item.itemId) {
 
+            R.id.help -> {
+                Utils.alertView(this@AccountsActivity, "New Account",
+                        getString(R.string.accounts_help))
+            }
+
             android.R.id.home -> {
                 Log.d("Baresip", "Back array was pressed at Accounts")
                 BaresipService.activities.removeAt(0)
@@ -76,10 +83,15 @@ class AccountsActivity : AppCompatActivity() {
                 setResult(RESULT_OK, i)
                 finish()
             }
-
         }
 
         return true
+    }
+
+    override fun onCreateOptionsMenu(menu: Menu): Boolean {
+
+        menuInflater.inflate(R.menu.accounts_menu, menu)
+        return true
 
     }
 
diff --git a/app/src/main/kotlin/com/tutpro/baresip/CallsActivity.kt b/app/src/main/kotlin/com/tutpro/baresip/CallsActivity.kt
index 6e5fe490..3c92a740 100644
--- a/app/src/main/kotlin/com/tutpro/baresip/CallsActivity.kt
+++ b/app/src/main/kotlin/com/tutpro/baresip/CallsActivity.kt
@@ -35,7 +35,7 @@ class CallsActivity : AppCompatActivity() {
         account = ua.account
 
         val headerView = findViewById(R.id.account) as TextView
-        val headerText = "${getString(R.string.account)} ${aor.substringAfter(":")}"
+        val headerText = "${getString(R.string.account)} ${aor.split(":")[1]}"
         headerView.text = headerText
 
         val listView = findViewById(R.id.calls) as ListView
diff --git a/app/src/main/kotlin/com/tutpro/baresip/ChatsActivity.kt b/app/src/main/kotlin/com/tutpro/baresip/ChatsActivity.kt
index d1afa1e5..00870ce0 100644
--- a/app/src/main/kotlin/com/tutpro/baresip/ChatsActivity.kt
+++ b/app/src/main/kotlin/com/tutpro/baresip/ChatsActivity.kt
@@ -34,7 +34,7 @@ class ChatsActivity: AppCompatActivity() {
         BaresipService.activities.add(0, "chats,$aor")
 
         val headerView = findViewById(R.id.account) as TextView
-        val headerText = "${getString(R.string.account)} ${aor.substringAfter(":")}"
+        val headerText = "${getString(R.string.account)} ${aor.split(":")[1]}"
         headerView.text = headerText
 
         uaMessages = uaMessages(aor)
diff --git a/app/src/main/kotlin/com/tutpro/baresip/UaSpinnerAdapter.kt b/app/src/main/kotlin/com/tutpro/baresip/UaSpinnerAdapter.kt
index 39d8b451..4365ad7c 100644
--- a/app/src/main/kotlin/com/tutpro/baresip/UaSpinnerAdapter.kt
+++ b/app/src/main/kotlin/com/tutpro/baresip/UaSpinnerAdapter.kt
@@ -26,7 +26,7 @@ class UaSpinnerAdapter(private val cxt: Context, private val uas: ArrayList<User
         val inflater = cxt.getSystemService(Context.LAYOUT_INFLATER_SERVICE) as LayoutInflater
         val row = inflater.inflate(R.layout.account_spinner, parent, false)
         val textView = row.findViewById(R.id.spinnerText) as TextView
-        textView.text = uas[position].account.aor.replace("sip:", "")
+        textView.text = uas[position].account.aor.split(":")[1]
         textView.textSize = 17f
         val imageView = row.findViewById(R.id.spinnerImage) as ImageView
         imageView.setImageResource(images[position])
diff --git a/app/src/main/kotlin/com/tutpro/baresip/Utils.kt b/app/src/main/kotlin/com/tutpro/baresip/Utils.kt
index 2e06a51e..d949009c 100644
--- a/app/src/main/kotlin/com/tutpro/baresip/Utils.kt
+++ b/app/src/main/kotlin/com/tutpro/baresip/Utils.kt
@@ -97,12 +97,23 @@ object Utils {
     }
 
     fun checkAor(aor: String): Boolean {
-        val parts = aor.split(":")
-        if (parts.size == 1)
-            return checkUriUser(aorUser(aor)) && checkDomain(aorDomain(aor))
+        val p = aor.split(":")
+        if (p.size == 2)
+            return checkUriUser(aorUser(p[0])) && checkDomain(aorDomain(p[0])) &&
+                checkPortTransport(p[1])
+        val t = aor.split(";transport=")
+        if (t.size == 2)
+            return checkUriUser(aorUser(t[0])) && checkDomain(aorDomain(t[0])) &&
+                    t[1] in arrayOf("udp", "tcp", "tls")
+        return checkUriUser(aorUser(aor)) && checkDomain(aorDomain(aor))
+    }
+
+    private fun checkPortTransport(portTransport: String): Boolean {
+        val pt = portTransport.split(";transport=")
+        if (pt.count() == 1)
+            return checkPort(pt[0])
         else
-            return checkUriUser(aorUser(parts[0])) && checkDomain(aorDomain(parts[0])) &&
-                    checkPort(parts[1])
+            return checkPort(pt[0]) && pt[1] in arrayOf("udp", "tcp", "tls")
     }
 
     private fun checkE164Number(no: String): Boolean {
diff --git a/app/src/main/res/layout/activity_account.xml b/app/src/main/res/layout/activity_account.xml
index e5ed8d25..a65500c9 100644
--- a/app/src/main/res/layout/activity_account.xml
+++ b/app/src/main/res/layout/activity_account.xml
@@ -16,6 +16,17 @@
         android:paddingBottom="24dp"
         android:focusableInTouchMode="true" >
 
+        <TextView
+            android:id="@+id/Uri"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:layout_gravity="center_horizontal"
+            android:textSize="18sp"
+            android:textColor="@android:color/black"
+            android:paddingBottom="10dp"
+            android:text="" >
+        </TextView>
+
         <TextView
             android:id="@+id/DisplayNameTitle"
             android:layout_width="wrap_content"
diff --git a/app/src/main/res/layout/activity_accounts.xml b/app/src/main/res/layout/activity_accounts.xml
index 0b563dc7..2660ab27 100644
--- a/app/src/main/res/layout/activity_accounts.xml
+++ b/app/src/main/res/layout/activity_accounts.xml
@@ -30,6 +30,7 @@
             android:layout_toStartOf="@+id/addAccount"
             android:inputType="textEmailAddress"
             android:autofillHints="username"
+            android:scrollHorizontally="true"
             android:hint="@string/user_domain" >
         </EditText>
 
diff --git a/app/src/main/res/menu/accounts_menu.xml b/app/src/main/res/menu/accounts_menu.xml
new file mode 100644
index 00000000..9d5fd68b
--- /dev/null
+++ b/app/src/main/res/menu/accounts_menu.xml
@@ -0,0 +1,6 @@
+<menu xmlns:android="http://schemas.android.com/apk/res/android">
+
+    <item android:id="@+id/help"
+        android:title="@string/help" />
+
+</menu>
diff --git a/app/src/main/res/values-fi/strings.xml b/app/src/main/res/values-fi/strings.xml
index 2895ffeb..8478cd07 100644
--- a/app/src/main/res/values-fi/strings.xml
+++ b/app/src/main/res/values-fi/strings.xml
@@ -104,8 +104,16 @@
     </string>
     <!-- Accounts Activity -->
     <string name="accounts">Tilit</string>
-    <string name="user_domain">käyttäjä@domain[:portti]</string>
-    <string name="invalid_aor">Virheellinen käyttäjä@domain[:portti] \'%1$s\'</string>
+    <string name="accounts_help">Valinnaisesti voidaan uutta tiliä luotaessa antaa myös porttinumero
+        ja tiedonsiirtoprokolla: käyttäjä@domain[:portti][;transport=udp|tcp|tls]. Jos portti on
+        annettu, mutta protolollaa ei ole annettu, protokolla on udp. Jos porttia ei ole annettu,
+        mutta protokolla on annettu, portti on joko 5060 tai 5061 (tls).  Jos kumpaakaan ei ole
+        annettu eikä välityspalvelinta ole määritelty, tilin mahdollinen rekisteröintipalvelin
+        päätellään pelkästään domainin DNS-informaation perusteella.
+    </string>
+    <string name="user_domain">käyttäjä@domain</string>
+    <string name="invalid_aor">Virheellinen käyttäjä@domain[:portti][;transport=udp|tcp|tls] \'%1$s\'
+    </string>
     <string name="account_exists">Tili \'%1$s\' on jo olemassa.</string>
     <string name="account_allocation_failure">"Uuden tilin luonti
     epäonnistui.
@@ -262,6 +270,8 @@
     <string name="send">Lähetä</string>
     <string name="status">Tila</string>
     <string name="error">Virhe</string>
+    <string name="help">Apua</string>
+
     <!-- Main Activity -->
     <string name="backup">Tallenna</string>
     <string name="restore">Palauta</string>
diff --git a/app/src/main/res/values/strings.xml b/app/src/main/res/values/strings.xml
index 9e72c079..a0b90928 100644
--- a/app/src/main/res/values/strings.xml
+++ b/app/src/main/res/values/strings.xml
@@ -98,8 +98,15 @@
 
     <!-- Accounts Activity -->
     <string name="accounts">Accounts</string>
-    <string name="user_domain">user@domain[:port]</string>
-    <string name="invalid_aor">Invalid user@domain[:port] \'%1$s\'</string>
+    <string name="accounts_help">Account\'s port number and transport protocol may be optionally
+        given when a new account is created: username@domain[:port][;transport=udp|tcp|tls].  If port
+        is given and transport protocol is not given, transport protocol defaults to udp.  If port is
+        not given and transport protocol is given, port defaults to 5060 or 5061 (tls).  If neither
+        is given and no outbound proxy is specified, account\'s registrar (if any) is determined
+        solely based on domain\'s DNS information.
+    </string>
+    <string name="user_domain">user@domain</string>
+    <string name="invalid_aor">Invalid user@domain[:port][;transport=udp|tcp|tls] \'%1$s\'</string>
     <string name="account_exists">Account \'%1$s\' already exists.</string>
     <string name="account_allocation_failure">"Failed to allocate new account.</string>
     <string name="encrypt_password">Encrypt Password</string>
@@ -246,6 +253,7 @@
     <string name="send">Send</string>
     <string name="status">Status</string>
     <string name="error">Error</string>
+    <string name="help">Help</string>
     <string name="dots" translatable="false">…</string>
 
     <!-- Main Activity -->
diff --git a/fastlane/metadata/android/en-US/changelogs/15.1.0.txt b/fastlane/metadata/android/en-US/changelogs/15.1.0.txt
new file mode 100644
index 00000000..a39e4ccd
--- /dev/null
+++ b/fastlane/metadata/android/en-US/changelogs/15.1.0.txt
@@ -0,0 +1,2 @@
+- Added possibility to give transport protocol for account's AoR.
+- Do not show account's port or transport protocol except in Account Activity.