diff --git a/dom/system/b2g/AudioManager.cpp b/dom/system/b2g/AudioManager.cpp
new file mode 100644
index 000000000000..694516119a2f
--- /dev/null
+++ b/dom/system/b2g/AudioManager.cpp
@@ -0,0 +1,130 @@
+/* ***** BEGIN LICENSE BLOCK *****
+ * Version: MPL 1.1/GPL 2.0/LGPL 2.1
+ *
+ * The contents of this file are subject to the Mozilla Public License Version
+ * 1.1 (the "License"); you may not use this file except in compliance with
+ * the License. You may obtain a copy of the License at
+ * http://www.mozilla.org/MPL/
+ *
+ * Software distributed under the License is distributed on an "AS IS" basis,
+ * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
+ * for the specific language governing rights and limitations under the
+ * License.
+ *
+ * The Original Code is B2G Audio Manager.
+ *
+ * The Initial Developer of the Original Code is
+ * the Mozilla Foundation.
+ * Portions created by the Initial Developer are Copyright (C) 2011
+ * the Initial Developer. All Rights Reserved.
+ *
+ * Contributor(s):
+ *   Philipp von Weitershausen <philipp@weitershausen.de>
+ *
+ * Alternatively, the contents of this file may be used under the terms of
+ * either the GNU General Public License Version 2 or later (the "GPL"), or
+ * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
+ * in which case the provisions of the GPL or the LGPL are applicable instead
+ * of those above. If you wish to allow use of your version of this file only
+ * under the terms of either the GPL or the LGPL, and not to allow others to
+ * use your version of this file under the terms of the MPL, indicate your
+ * decision by deleting the provisions above and replace them with the notice
+ * and other provisions required by the GPL or the LGPL. If you do not delete
+ * the provisions above, a recipient may use your version of this file under
+ * the terms of any one of the MPL, the GPL or the LGPL.
+ *
+ * ***** END LICENSE BLOCK ***** */
+
+#include "AudioManager.h"
+#include <media/AudioSystem.h>
+
+using namespace mozilla::dom::telephony;
+using namespace android;
+
+NS_IMPL_ISUPPORTS1(AudioManager, nsIAudioManager)
+
+NS_IMETHODIMP
+AudioManager::GetMicrophoneMuted(bool* aMicrophoneMuted)
+{
+  if (AudioSystem::isMicrophoneMuted(aMicrophoneMuted)) {
+    return NS_ERROR_FAILURE;
+  }
+  return NS_OK;
+}
+
+NS_IMETHODIMP
+AudioManager::SetMicrophoneMuted(bool aMicrophoneMuted)
+{
+  if (AudioSystem::muteMicrophone(aMicrophoneMuted)) {
+    return NS_ERROR_FAILURE;
+  }
+  return NS_OK;
+}
+
+NS_IMETHODIMP
+AudioManager::GetMasterVolume(float* aMasterVolume)
+{
+  if (AudioSystem::getMasterVolume(aMasterVolume)) {
+    return NS_ERROR_FAILURE;
+  }
+  return NS_OK;
+}
+
+NS_IMETHODIMP
+AudioManager::SetMasterVolume(float aMasterVolume)
+{
+  if (AudioSystem::setMasterVolume(aMasterVolume)) {
+    return NS_ERROR_FAILURE;
+  }
+  return NS_OK;
+}
+
+NS_IMETHODIMP
+AudioManager::GetMasterMuted(bool* aMasterMuted)
+{
+  if (AudioSystem::getMasterMute(aMasterMuted)) {
+    return NS_ERROR_FAILURE;
+  }
+  return NS_OK;
+}
+
+NS_IMETHODIMP
+AudioManager::SetMasterMuted(bool aMasterMuted)
+{
+  if (AudioSystem::setMasterMute(aMasterMuted)) {
+    return NS_ERROR_FAILURE;
+  }
+  return NS_OK;
+}
+
+NS_IMETHODIMP
+AudioManager::GetPhoneState(PRInt32* aState)
+{
+  *aState = mPhoneState;
+  return NS_OK;
+}
+
+NS_IMETHODIMP
+AudioManager::SetPhoneState(PRInt32 aState)
+{
+  if (AudioSystem::setPhoneState(aState)) {
+    return NS_ERROR_FAILURE;
+  }
+  return NS_OK;
+}
+
+NS_IMETHODIMP
+AudioManager::SetForceForUse(PRInt32 aUsage, PRInt32 aForce)
+{
+  if (AudioSystem::setForceUse((AudioSystem::force_use)aUsage,
+                               (AudioSystem::forced_config)aForce)) {
+    return NS_ERROR_FAILURE;
+  }
+  return NS_OK;
+}
+
+NS_IMETHODIMP
+AudioManager::GetForceForUse(PRInt32 aUsage, PRInt32* aForce) {
+  *aForce = AudioSystem::getForceUse((AudioSystem::force_use)aUsage);
+  return NS_OK;
+}
diff --git a/dom/system/b2g/AudioManager.h b/dom/system/b2g/AudioManager.h
new file mode 100644
index 000000000000..49d9a29d12f8
--- /dev/null
+++ b/dom/system/b2g/AudioManager.h
@@ -0,0 +1,72 @@
+/* ***** BEGIN LICENSE BLOCK *****
+ * Version: MPL 1.1/GPL 2.0/LGPL 2.1
+ *
+ * The contents of this file are subject to the Mozilla Public License Version
+ * 1.1 (the "License"); you may not use this file except in compliance with
+ * the License. You may obtain a copy of the License at
+ * http://www.mozilla.org/MPL/
+ *
+ * Software distributed under the License is distributed on an "AS IS" basis,
+ * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
+ * for the specific language governing rights and limitations under the
+ * License.
+ *
+ * The Original Code is B2G Audio Manager.
+ *
+ * The Initial Developer of the Original Code is
+ * the Mozilla Foundation.
+ * Portions created by the Initial Developer are Copyright (C) 2011
+ * the Initial Developer. All Rights Reserved.
+ *
+ * Contributor(s):
+ *   Philipp von Weitershausen <philipp@weitershausen.de>
+ *
+ * Alternatively, the contents of this file may be used under the terms of
+ * either the GNU General Public License Version 2 or later (the "GPL"), or
+ * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
+ * in which case the provisions of the GPL or the LGPL are applicable instead
+ * of those above. If you wish to allow use of your version of this file only
+ * under the terms of either the GPL or the LGPL, and not to allow others to
+ * use your version of this file under the terms of the MPL, indicate your
+ * decision by deleting the provisions above and replace them with the notice
+ * and other provisions required by the GPL or the LGPL. If you do not delete
+ * the provisions above, a recipient may use your version of this file under
+ * the terms of any one of the MPL, the GPL or the LGPL.
+ *
+ * ***** END LICENSE BLOCK ***** */
+
+#ifndef mozilla_dom_system_b2g_audiomanager_h__
+#define mozilla_dom_system_b2g_audiomanager_h__
+
+#include "nsIAudioManager.h"
+
+
+// {b2b51423-502d-4d77-89b3-7786b562b084}
+#define NS_AUDIOMANAGER_CID {0x94f6fd70, 0x7615, 0x4af9, \
+      {0x89, 0x10, 0xf9, 0x3c, 0x55, 0xe6, 0x62, 0xec}}
+#define NS_AUDIOMANAGER_CONTRACTID "@mozilla.org/telephony/audiomanager;1"
+
+namespace mozilla {
+namespace dom {
+namespace telephony {
+
+class AudioManager : public nsIAudioManager
+{
+public:
+  NS_DECL_ISUPPORTS
+  NS_DECL_NSIAUDIOMANAGER
+
+  AudioManager() : mPhoneState(PHONE_STATE_CURRENT)
+  {
+  }
+
+protected:
+  PRInt32 mPhoneState;
+};
+
+
+} /* namespace telephony */
+} /* namespace dom */
+} /* namespace mozilla */
+
+#endif // mozilla_dom_system_b2g_audiomanager_h__
diff --git a/dom/system/b2g/Makefile.in b/dom/system/b2g/Makefile.in
index 8707a6a02404..722115bdca93 100644
--- a/dom/system/b2g/Makefile.in
+++ b/dom/system/b2g/Makefile.in
@@ -54,7 +54,14 @@ CPPSRCS = \
   RadioManager.cpp \
   $(NULL)
 
-XPIDLSRCS = nsIRadioWorker.idl
+ifeq (gonk,$(MOZ_WIDGET_TOOLKIT))
+CPPSRCS += AudioManager.cpp
+endif
+
+XPIDLSRCS = \
+  nsIAudioManager.idl \
+  nsIRadioWorker.idl \
+  $(NULL)
 
 LOCAL_INCLUDES = \
   -I$(topsrcdir)/dom/base \
diff --git a/dom/system/b2g/nsIAudioManager.idl b/dom/system/b2g/nsIAudioManager.idl
new file mode 100644
index 000000000000..6586c9ae2bbc
--- /dev/null
+++ b/dom/system/b2g/nsIAudioManager.idl
@@ -0,0 +1,90 @@
+/* ***** BEGIN LICENSE BLOCK *****
+ * Version: MPL 1.1/GPL 2.0/LGPL 2.1
+ *
+ * The contents of this file are subject to the Mozilla Public License Version
+ * 1.1 (the "License"); you may not use this file except in compliance with
+ * the License. You may obtain a copy of the License at
+ * http://www.mozilla.org/MPL/
+ *
+ * Software distributed under the License is distributed on an "AS IS" basis,
+ * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
+ * for the specific language governing rights and limitations under the
+ * License.
+ *
+ * The Original Code is B2G Audio Manager.
+ *
+ * The Initial Developer of the Original Code is
+ * the Mozilla Foundation.
+ * Portions created by the Initial Developer are Copyright (C) 2011
+ * the Initial Developer. All Rights Reserved.
+ *
+ * Contributor(s):
+ *   Philipp von Weitershausen <philipp@weitershausen.de>
+ *
+ * Alternatively, the contents of this file may be used under the terms of
+ * either the GNU General Public License Version 2 or later (the "GPL"), or
+ * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
+ * in which case the provisions of the GPL or the LGPL are applicable instead
+ * of those above. If you wish to allow use of your version of this file only
+ * under the terms of either the GPL or the LGPL, and not to allow others to
+ * use your version of this file under the terms of the MPL, indicate your
+ * decision by deleting the provisions above and replace them with the notice
+ * and other provisions required by the GPL or the LGPL. If you do not delete
+ * the provisions above, a recipient may use your version of this file under
+ * the terms of any one of the MPL, the GPL or the LGPL.
+ *
+ * ***** END LICENSE BLOCK ***** */
+
+#include "nsISupports.idl"
+
+[scriptable, builtinclass, uuid(d2124467-7209-4b2e-a91a-cf3f90681e3c)]
+interface nsIAudioManager : nsISupports
+{
+  /**
+   * Microphone muted?
+   */
+  attribute boolean microphoneMuted;
+
+  /**
+   * The master volume.
+   */
+  attribute float masterVolume;
+
+  /**
+   * Master volume muted?
+   */
+  attribute boolean masterMuted;
+
+  /**
+   * Set the phone's audio mode.
+   */
+  const long PHONE_STATE_INVALID          = -2;
+  const long PHONE_STATE_CURRENT          = -1;
+  const long PHONE_STATE_NORMAL           = 0;
+  const long PHONE_STATE_RINGTONE         = 1;
+  const long PHONE_STATE_IN_CALL          = 2;
+  const long PHONE_STATE_IN_COMMUNICATION = 3;
+
+  attribute long phoneState;
+
+  /**
+   * Configure a particular device ("force") to be used for one of the uses
+   * (communication, media playback, etc.)
+   */
+  const long FORCE_NONE            = 0; // the default
+  const long FORCE_SPEAKER         = 1;
+  const long FORCE_HEADPHONES      = 2;
+  const long FORCE_BT_SCO          = 3;
+  const long FORCE_BT_A2DP         = 4;
+  const long FORCE_WIRED_ACCESSORY = 5;
+  const long FORCE_BT_CAR_DOCK     = 6;
+  const long FORCE_BT_DESK_DOCK    = 7;
+
+  const long USE_COMMUNICATION     = 0;
+  const long USE_MEDIA             = 1;
+  const long USE_RECORD            = 2;
+  const long USE_DOCK              = 3;
+
+  void setForceForUse(in long usage, in long force);
+  long getForceForUse(in long usage);
+};
diff --git a/layout/build/nsLayoutModule.cpp b/layout/build/nsLayoutModule.cpp
index 45281cf7b5ee..2e5e09549943 100644
--- a/layout/build/nsLayoutModule.cpp
+++ b/layout/build/nsLayoutModule.cpp
@@ -131,6 +131,11 @@ using mozilla::dom::indexedDB::IndexedDatabaseManager;
 #ifdef MOZ_B2G_RIL
 #include "RadioManager.h"
 using mozilla::dom::telephony::RadioManager;
+#include "nsITelephone.h"
+#endif
+#ifdef MOZ_WIDGET_GONK
+#include "AudioManager.h"
+using mozilla::dom::telephony::AudioManager;
 #endif
 
 // Editor stuff
@@ -346,7 +351,9 @@ RadioInterfaceConstructor(nsISupports *aOuter, REFNSIID aIID, void **aResult)
 }
 #endif
 
-#ifndef MOZ_WIDGET_GONK
+#ifdef MOZ_WIDGET_GONK
+NS_GENERIC_FACTORY_CONSTRUCTOR(AudioManager)
+#else
 #if defined(XP_UNIX)    || \
     defined(_WINDOWS)   || \
     defined(machintosh) || \
@@ -854,6 +861,9 @@ NS_DEFINE_NAMED_CID(INDEXEDDB_MANAGER_CID);
 NS_DEFINE_NAMED_CID(TELEPHONYRADIO_CID);
 NS_DEFINE_NAMED_CID(TELEPHONYRADIOINTERFACE_CID);
 #endif
+#ifdef MOZ_WIDGET_GONK
+NS_DEFINE_NAMED_CID(NS_AUDIOMANAGER_CID);
+#endif
 #ifdef ENABLE_EDITOR_API_LOG
 NS_DEFINE_NAMED_CID(NS_HTMLEDITOR_CID);
 #else
@@ -993,6 +1003,9 @@ static const mozilla::Module::CIDEntry kLayoutCIDs[] = {
   { &kTELEPHONYRADIO_CID, true, NULL, RadioManagerConstructor },
   { &kTELEPHONYRADIOINTERFACE_CID, true, NULL, RadioInterfaceConstructor },
 #endif
+#ifdef MOZ_WIDGET_GONK
+  { &kNS_AUDIOMANAGER_CID, true, NULL, AudioManagerConstructor },
+#endif
 #ifdef ENABLE_EDITOR_API_LOG
   { &kNS_HTMLEDITOR_CID, false, NULL, nsHTMLEditorLogConstructor },
 #else
@@ -1126,6 +1139,9 @@ static const mozilla::Module::ContractIDEntry kLayoutContracts[] = {
   { TELEPHONYRADIO_CONTRACTID, &kTELEPHONYRADIO_CID },
   { TELEPHONYRADIOINTERFACE_CONTRACTID, &kTELEPHONYRADIOINTERFACE_CID },
 #endif
+#ifdef MOZ_WIDGET_GONK
+  { NS_AUDIOMANAGER_CONTRACTID, &kNS_AUDIOMANAGER_CID },
+#endif
 #ifdef ENABLE_EDITOR_API_LOG
   { "@mozilla.org/editor/htmleditor;1", &kNS_HTMLEDITOR_CID },
 #else
diff --git a/toolkit/library/Makefile.in b/toolkit/library/Makefile.in
index ea7772c42ca4..c285afb49034 100644
--- a/toolkit/library/Makefile.in
+++ b/toolkit/library/Makefile.in
@@ -422,7 +422,10 @@ OS_LIBS += -lGLESv2
 endif
 
 ifeq (gonk,$(MOZ_WIDGET_TOOLKIT))
-OS_LIBS += -lui
+OS_LIBS += \
+  -lui \
+  -lmedia \
+  $(NULL)
 endif
 
 EXTRA_DEPS += \