diff --git a/app/build.gradle b/app/build.gradle
index 19fe8acd..c4733f1f 100644
--- a/app/build.gradle
+++ b/app/build.gradle
@@ -2,12 +2,12 @@ apply plugin: 'com.android.application'
 apply plugin: 'kotlin-android'
 
 android {
-    compileSdkVersion = 26
+    compileSdkVersion = 27
     buildToolsVersion '27.0.3'
     defaultConfig {
         applicationId = 'com.tutpro.baresip'
         minSdkVersion 21
-        targetSdkVersion 26
+        targetSdkVersion 27
         versionCode = 19
         versionName = '2.4.0'
         externalNativeBuild {
@@ -38,10 +38,10 @@ android {
 
 dependencies {
     implementation fileTree(include: ['*.jar'], dir: 'libs')
-    implementation 'com.android.support:appcompat-v7:26.1.0'
-    implementation 'com.android.support.constraint:constraint-layout:1.1.2'
+    implementation 'com.android.support:appcompat-v7:27.1.1'
+    implementation 'com.android.support.constraint:constraint-layout:1.1.3'
     implementation "org.jetbrains.kotlin:kotlin-stdlib-jdk7:$kotlin_version"
-    implementation 'com.android.support:design:26.1.0'
+    implementation 'com.android.support:design:27.1.1'
 }
 
 repositories {
diff --git a/app/src/main/assets/config b/app/src/main/assets/config
index 4dd6041d..4372de68 100644
--- a/app/src/main/assets/config
+++ b/app/src/main/assets/config
@@ -138,7 +138,6 @@ module_app              contact.so
 module_app              debug_cmd.so
 #module_app             dtmfio.so
 #module_app             echo.so
-#module_app             menu.so
 #module_app             mwi.so
 #module_app             natbd.so
 #module_app             presence.so
@@ -148,7 +147,6 @@ module_app              debug_cmd.so
 #------------------------------------------------------------------------------
 # Module parameters
 
-
 cons_listen             0.0.0.0:5555
 
 http_listen             0.0.0.0:8000
@@ -170,7 +168,5 @@ ice_debug               no
 ice_nomination          regular # {regular,aggressive}
 ice_mode                full    # {full,lite}
 
-# Menu
-statmode_default        off
-#redial_attempts        3 # Num or <inf>
-#redial_delay           5 # Delay in seconds
+# ZRTP
+zrtp_hash		        yes