diff --git a/pkgs/development/libraries/bcg729/default.nix b/pkgs/development/libraries/bcg729/default.nix
new file mode 100644
index 000000000000..4363948e830d
--- /dev/null
+++ b/pkgs/development/libraries/bcg729/default.nix
@@ -0,0 +1,43 @@
+{ stdenv
+, fetchFromGitHub
+, fetchpatch
+, cmake
+}:
+
+stdenv.mkDerivation rec {
+  pname = "bcg729";
+  version = "1.0.4";
+
+  src = fetchFromGitHub {
+    owner = "BelledonneCommunications";
+    repo = pname;
+    rev = version;
+    sha256 = "05s0c5ps3a763y0v34wg5zghj0cdjnq4ch7g81848xxry7q90fwa";
+  };
+
+  patches = [
+    (fetchpatch {
+      url = "https://github.com/BelledonneCommunications/bcg729/commit/a5907daf1b111e4ad7aab4f558f57e2af1e37e55.patch";
+      sha256 = "0445syfwj4w4chh8ak80rq77iqcr27924n1ld5snshk3d21nxd64";
+    })
+    (fetchpatch {
+      url = "https://github.com/BelledonneCommunications/bcg729/commit/697bf6653a8c7421f0e821ee8d42471246e6850f.patch";
+      sha256 = "1h3gf5sj2sg5cs5iv1lcav3lkqmd5jf4agvjzz83l89wd5f5hp5l";
+    })
+    (fetchpatch {
+      url = "https://github.com/BelledonneCommunications/bcg729/commit/d63ce04a93711820d9a6985b1d11d8d91ed8e6b6.patch";
+      sha256 = "1piwf63ci2gma6jd6b4adkvxirysvazf0vklb5pc6vx1g93nkgxs";
+    })
+  ];
+
+  nativeBuildInputs = [ cmake ];
+
+  meta = with stdenv.lib; {
+    description = "Opensource implementation of both encoder and decoder of the ITU G729 Annex A/B speech codec";
+    homepage = "https://linphone.org/technical-corner/bcg729";
+    changelog = "https://gitlab.linphone.org/BC/public/bcg729/raw/${version}/NEWS";
+    license = licenses.gpl2Plus;
+    maintainers = with maintainers; [ c0bw3b ];
+    platforms = platforms.all;
+  };
+}
diff --git a/pkgs/top-level/all-packages.nix b/pkgs/top-level/all-packages.nix
index 3268f707ef5c..2a2f98a9967a 100644
--- a/pkgs/top-level/all-packages.nix
+++ b/pkgs/top-level/all-packages.nix
@@ -10697,6 +10697,8 @@ in
 
   bamf = callPackage ../development/libraries/bamf { };
 
+  bcg729 = callPackage ../development/libraries/bcg729 { };
+
   bctoolbox = callPackage ../development/libraries/bctoolbox { };
 
   beecrypt = callPackage ../development/libraries/beecrypt { };