diff --git a/app/src/main/java/com/bartlomiejpluta/ttsserver/core/sonos/queue/SonosQueue.kt b/app/src/main/java/com/bartlomiejpluta/ttsserver/core/sonos/queue/SonosQueue.kt
index c8da08d..7a4f456 100644
--- a/app/src/main/java/com/bartlomiejpluta/ttsserver/core/sonos/queue/SonosQueue.kt
+++ b/app/src/main/java/com/bartlomiejpluta/ttsserver/core/sonos/queue/SonosQueue.kt
@@ -1,5 +1,6 @@
 package com.bartlomiejpluta.ttsserver.core.sonos.queue
 
+import android.content.SharedPreferences
 import com.bartlomiejpluta.ttsserver.core.sonos.worker.SonosWorker
 import com.bartlomiejpluta.ttsserver.core.tts.engine.TTSEngine
 import com.bartlomiejpluta.ttsserver.core.util.NetworkUtil
@@ -7,17 +8,25 @@ import com.bartlomiejpluta.ttsserver.core.web.dto.SonosDTO
 import java.util.concurrent.BlockingQueue
 import java.util.concurrent.LinkedBlockingQueue
 
-class SonosQueue(private val tts: TTSEngine, private val networkUtil: NetworkUtil) {
+class SonosQueue(
+   private val tts: TTSEngine,
+   private val preferences: SharedPreferences,
+   private val networkUtil: NetworkUtil
+) {
    private val queue: BlockingQueue<SonosDTO> = LinkedBlockingQueue()
    private var consumer: Thread? = null
 
    fun run() {
       consumer?.interrupt()
-      consumer = Thread(SonosWorker(tts, networkUtil.serverAddress, queue))
-         .also { it.name = "SonosQueue" }
+      consumer = createWorkerThread()
       consumer?.start()
    }
 
+   private fun createWorkerThread(): Thread {
+      val worker = SonosWorker(tts, networkUtil.serverAddress, preferences, queue)
+      return Thread(worker).also { it.name = "SonosQueue" }
+   }
+
    fun stop() {
       consumer?.interrupt()
       consumer = null
diff --git a/app/src/main/java/com/bartlomiejpluta/ttsserver/core/sonos/worker/SonosWorker.kt b/app/src/main/java/com/bartlomiejpluta/ttsserver/core/sonos/worker/SonosWorker.kt
index a379143..62143f1 100644
--- a/app/src/main/java/com/bartlomiejpluta/ttsserver/core/sonos/worker/SonosWorker.kt
+++ b/app/src/main/java/com/bartlomiejpluta/ttsserver/core/sonos/worker/SonosWorker.kt
@@ -1,9 +1,12 @@
 package com.bartlomiejpluta.ttsserver.core.sonos.worker
 
+import android.content.SharedPreferences
 import com.bartlomiejpluta.ttsserver.core.tts.engine.TTSEngine
 import com.bartlomiejpluta.ttsserver.core.web.dto.SonosDTO
+import com.bartlomiejpluta.ttsserver.core.web.endpoint.Endpoint
 import com.bartlomiejpluta.ttsserver.service.foreground.ForegroundService
 import com.bartlomiejpluta.ttsserver.service.state.ServiceState
+import com.bartlomiejpluta.ttsserver.ui.preference.PreferenceKey
 import com.vmichalak.sonoscontroller.Snapshot
 import com.vmichalak.sonoscontroller.SonosDevice
 import com.vmichalak.sonoscontroller.SonosDiscovery
@@ -13,8 +16,11 @@ import java.util.concurrent.BlockingQueue
 class SonosWorker(
    private val tts: TTSEngine,
    private val address: String,
+   private val preferences: SharedPreferences,
    private val queue: BlockingQueue<SonosDTO>
 ) : Runnable {
+   private val gongUrl: String get() = address + Endpoint.GONG.trimmedUri
+   private val announcementUrl: String get() = address + Endpoint.SONOS_CACHE.trimmedUri
    private var snapshot: Snapshot? = null
 
    override fun run() = try {
@@ -27,21 +33,30 @@ class SonosWorker(
 
    private fun consume(data: SonosDTO) =
       SonosDiscovery.discover().firstOrNull { it.zoneGroupState.name == data.zone }?.let {
-         updateSnapshotIfFirst(it)
          val url = prepareTTSFile(data)
+         updateSnapshotIfFirst(it)
          announce(it, data, url)
          restoreSnapshotIfLast()
       }
 
    private fun prepareTTSFile(data: SonosDTO): String {
       val filename = tts.createTTSFile(data.text, data.language).name
-      return "$address/sonos/$filename"
+      return "$announcementUrl$filename"
    }
 
    private fun announce(device: SonosDevice, data: SonosDTO, url: String) {
       device.stop()
       device.volume = data.volume
-      device.playUri(url, "")
+
+      if (preferences.getBoolean(PreferenceKey.ENABLE_GONG, false)) {
+         playUri(device, gongUrl)
+      }
+
+      playUri(device, url)
+   }
+
+   private fun playUri(device: SonosDevice, uri: String) {
+      device.playUri(uri, "")
       while (device.playState != PlayState.STOPPED) {
          Thread.sleep(500)
       }
diff --git a/app/src/main/java/com/bartlomiejpluta/ttsserver/core/web/endpoint/Endpoint.kt b/app/src/main/java/com/bartlomiejpluta/ttsserver/core/web/endpoint/Endpoint.kt
index 5e1479c..50b92ae 100644
--- a/app/src/main/java/com/bartlomiejpluta/ttsserver/core/web/endpoint/Endpoint.kt
+++ b/app/src/main/java/com/bartlomiejpluta/ttsserver/core/web/endpoint/Endpoint.kt
@@ -5,7 +5,11 @@ enum class Endpoint(val uri: String, val id: Int) {
    SAY("/say", 2),
    WAVE("/wave", 3),
    SONOS("/sonos", 4),
-   SONOS_CACHE("/sonos/*", 5);
+   SONOS_CACHE("/sonos/*", 5),
+   GONG("/gong.wav", 6);
+
+   val trimmedUri: String
+      get() = uri.replace("*", "")
 
    companion object {
       fun of(id: Int) = values().firstOrNull { it.id == id } ?: UNKNOWN
diff --git a/app/src/main/java/com/bartlomiejpluta/ttsserver/core/web/server/WebServer.kt b/app/src/main/java/com/bartlomiejpluta/ttsserver/core/web/server/WebServer.kt
index 2942ede..268c279 100644
--- a/app/src/main/java/com/bartlomiejpluta/ttsserver/core/web/server/WebServer.kt
+++ b/app/src/main/java/com/bartlomiejpluta/ttsserver/core/web/server/WebServer.kt
@@ -7,6 +7,7 @@ import android.net.Uri
 import androidx.localbroadcastmanager.content.LocalBroadcastManager
 import com.bartlomiejpluta.ttsserver.core.sonos.queue.SonosQueue
 import com.bartlomiejpluta.ttsserver.core.tts.engine.TTSEngine
+import com.bartlomiejpluta.ttsserver.core.tts.exception.TTSException
 import com.bartlomiejpluta.ttsserver.core.tts.status.TTSStatus
 import com.bartlomiejpluta.ttsserver.core.web.dto.BaseDTO
 import com.bartlomiejpluta.ttsserver.core.web.dto.SonosDTO
@@ -59,6 +60,7 @@ class WebServer(
          Endpoint.WAVE -> wave(it)
          Endpoint.SONOS -> sonos(it)
          Endpoint.SONOS_CACHE -> sonosCache(it)
+         Endpoint.GONG -> gong(it)
          Endpoint.UNKNOWN -> throw WebException(NOT_FOUND)
       }
    }
@@ -161,6 +163,29 @@ class WebServer(
       return newFixedLengthResponse(OK, MIME_WAVE, stream, size)
    }
 
+   private fun gong(session: IHTTPSession): Response {
+      if (!preferences.getBoolean(PreferenceKey.ENABLE_GONG, false)) {
+         throw WebException(NOT_FOUND)
+      }
+
+      if (session.method != Method.GET) {
+         throw WebException(METHOD_NOT_ALLOWED, "Only GET methods are allowed")
+      }
+
+      val uri = Uri.parse(
+         preferences.getString(PreferenceKey.GONG, null) ?: throw TTSException()
+      )
+
+      val size = context.contentResolver.openFileDescriptor(uri, "r")?.statSize
+         ?: throw TTSException()
+
+      val stream = BufferedInputStream(
+         context.contentResolver.openInputStream(uri) ?: throw TTSException()
+      )
+
+      return newFixedLengthResponse(OK, MIME_WAVE, stream, size)
+   }
+
    override fun start() {
       super.start()
       sonos.run()
diff --git a/app/src/main/java/com/bartlomiejpluta/ttsserver/di/module/TTSModule.kt b/app/src/main/java/com/bartlomiejpluta/ttsserver/di/module/TTSModule.kt
index 0453cfd..35839de 100644
--- a/app/src/main/java/com/bartlomiejpluta/ttsserver/di/module/TTSModule.kt
+++ b/app/src/main/java/com/bartlomiejpluta/ttsserver/di/module/TTSModule.kt
@@ -60,7 +60,8 @@ class TTSModule {
 
    @Provides
    @Singleton
-   fun sonosQueue(tts: TTSEngine, networkUtil: NetworkUtil) = SonosQueue(tts, networkUtil)
+   fun sonosQueue(tts: TTSEngine, preferences: SharedPreferences, networkUtil: NetworkUtil) =
+      SonosQueue(tts, preferences, networkUtil)
 
    @Provides
    @Singleton