diff --git a/pkgs/applications/networking/mumble/default.nix b/pkgs/applications/networking/mumble/default.nix
new file mode 100644
index 000000000000..c29b0ec74461
--- /dev/null
+++ b/pkgs/applications/networking/mumble/default.nix
@@ -0,0 +1,29 @@
+{ stdenv, fetchurl, qt4, libvorbis, boost, speechd, protobuf, libsndfile,
+ avahi }:
+        
+throw "It does not build still. It wants dns_sd.h"
+
+stdenv.mkDerivation rec {
+  name = "mumble-" + version;
+  version = "1.2.2";
+
+  src = fetchurl {
+    url = "mirror://sourceforge/mumble/${name}.tar.gz";
+    sha256 = "1s4vlkdfmyzx7h3i4060q0sf2xywl9sm6dpjhaa150blbcylwmic";
+  };
+
+  patchPhase = ''
+    sed -e s/qt_ja_JP.qm// -i src/mumble/mumble.pro src/mumble11x/mumble11x.pro
+    sed -e /qt_ja_JP.qm/d -i src/mumble/mumble_qt.qrc src/mumble11x/mumble_qt.qrc
+  '';
+
+  configurePhase = "qmake PREFIX=$out";
+
+  buildInputs = [ qt4 libvorbis boost speechd protobuf libsndfile avahi ];
+
+  meta = { 
+    homepage = http://mumble.sourceforge.net/;
+    description = "Low-latency, high quality voice chat software";
+    license = "BSD";
+  };
+}
diff --git a/pkgs/development/libraries/dotconf/default.nix b/pkgs/development/libraries/dotconf/default.nix
new file mode 100644
index 000000000000..9a71393badde
--- /dev/null
+++ b/pkgs/development/libraries/dotconf/default.nix
@@ -0,0 +1,18 @@
+{ fetchurl, stdenv }:
+
+stdenv.mkDerivation rec {
+  name = "dotconf-" + version;
+  version = "1.0.13";
+
+  src = fetchurl {
+    url = "http://www.azzit.de/dotconf/download/v1.0/dotconf-1.0.13.tar.gz";
+    sha256 = "0rcvi743jgnrq2p5gknnvsqiv47479y5gyc2g9pz7bp7v7bzlmc9";
+  };
+
+  meta = {
+    description = "A configuration parser library";
+
+    homepage = http://www.azzit.de/dotconf/;
+    license = "LGPLv21+";
+  };
+}
diff --git a/pkgs/development/libraries/speechd/default.nix b/pkgs/development/libraries/speechd/default.nix
new file mode 100644
index 000000000000..0e542b353f67
--- /dev/null
+++ b/pkgs/development/libraries/speechd/default.nix
@@ -0,0 +1,20 @@
+{ fetchurl, stdenv, dotconf, glib, pkgconfig }:
+
+stdenv.mkDerivation rec {
+  name = "speech-dispatcher-" + version;
+  version = "0.7.1";
+
+  src = fetchurl {
+    url = "http://www.freebsoft.org/pub/projects/speechd/${name}.tar.gz";
+    sha256 = "0laag72iw03545zggdzcr860b8q7w1vrjr3csd2ldps7jhlwzad8";
+  };
+
+  buildInputs = [ dotconf glib pkgconfig ];
+
+  meta = {
+    description = "Common interface to speech synthesis";
+
+    homepage = http://www.freebsoft.org/speechd;
+    license = "GPLv2+";
+  };
+}
diff --git a/pkgs/top-level/all-packages.nix b/pkgs/top-level/all-packages.nix
index e65947ea7633..6be5486fd8f2 100644
--- a/pkgs/top-level/all-packages.nix
+++ b/pkgs/top-level/all-packages.nix
@@ -2892,6 +2892,8 @@ let
 
   directfb = callPackage ../development/libraries/directfb { };
 
+  dotconf = callPackage ../development/libraries/dotconf { };
+
   dssi = callPackage ../development/libraries/dssi {};
 
   dragonegg = callPackage ../development/compilers/llvm/dragonegg.nix {
@@ -4053,6 +4055,8 @@ let
         # optional
   };
 
+  speechd = callPackage ../development/libraries/speechd { };
+
   speex = callPackage ../development/libraries/speex { };
 
   srtp = callPackage ../development/libraries/srtp {};
@@ -6363,6 +6367,13 @@ let
     inherit (gnome) gtk glib ORBit2 libbonobo libgnomeui GConf;
   };
 
+  mumble = callPackage ../applications/networking/mumble {
+    avahi = avahi.override {
+      qt4Support = true;
+      inherit qt4;
+    };
+  };
+
   mutt = callPackage ../applications/networking/mailreaders/mutt { };
 
   msmtp = callPackage ../applications/networking/msmtp { };