diff --git a/README.md b/README.md
index 94efee7..fbbfd24 100644
--- a/README.md
+++ b/README.md
@@ -1,2 +1,5 @@
 # bzrtp
 
+bzrtp is an opensource implementation of ZRTP keys exchange protocol.
+The library written in C 89 is fully portable and can be executed  on many platforms including both ARM  processor and x86.
+
diff --git a/bzrtp.spec b/bzrtp.spec
new file mode 100644
index 0000000..767b8d2
--- /dev/null
+++ b/bzrtp.spec
@@ -0,0 +1,85 @@
+Name:          bzrtp
+Version:       5.2.111
+Release:       1mamba
+Summary:       An opensource implementation of ZRTP keys exchange protocol
+Group:         System/Libraries
+Vendor:        openmamba
+Distribution:  openmamba
+Packager:      Silvan Calarco <silvan.calarco@mambasoft.it>
+URL:           https://github.com/linphone/bzrtp
+Source:        https://github.com/BelledonneCommunications/bzrtp.git/%{version}/bzrtp-%{version}.tar.bz2
+License:       GPL
+## AUTOBUILDREQ-BEGIN
+BuildRequires: glibc-devel
+BuildRequires: libbctoolbox-devel
+BuildRequires: libgcc
+BuildRequires: libsqlite-devel
+BuildRequires: libstdc++6-devel
+BuildRequires: libxml2-devel
+## AUTOBUILDREQ-END
+BuildRequires: cmake
+Requires:      lib%{name} = %{?epoch:%epoch:}%{version}-%{release}
+
+%description
+bzrtp is an opensource implementation of ZRTP keys exchange protocol.
+The library written in C 89 is fully portable and can be executed  on many platforms including both ARM  processor and x86.
+
+%package -n lib%{name}
+Group:         System/Libraries
+Summary:       An opensource implementation of ZRTP keys exchange protocol
+
+%description -n lib%{name}
+bzrtp is an opensource implementation of ZRTP keys exchange protocol.
+The library written in C 89 is fully portable and can be executed  on many platforms including both ARM  processor and x86.
+This package contains shared libraries for %{name}.
+
+%package -n lib%{name}-devel
+Group:         Development/Libraries
+Summary:       Development files for %{name}
+Requires:      lib%{name} = %{?epoch:%epoch:}%{version}-%{release}
+
+%description -n lib%{name}-devel
+This package contains libraries and header files for developing applications that use %{name}.
+
+
+%debug_package
+
+%prep
+%setup -q
+
+%build
+%cmake \
+   -DENABLE_STATIC=OFF
+	
+%cmake_build
+
+%install
+[ "%{buildroot}" != / ] && rm -rf "%{buildroot}"
+%cmake_install
+
+install -d -m0755 %{buildroot}%{_libdir}/cmake
+mv %{buildroot}%{_datadir}/bzrtp/cmake %{buildroot}%{_libdir}/cmake/bzrtp
+
+%clean
+[ "%{buildroot}" != / ] && rm -rf "%{buildroot}"
+
+%post -n lib%{name} -p /sbin/ldconfig
+%postun -n lib%{name} -p /sbin/ldconfig
+
+%files -n lib%{name}
+%defattr(-,root,root)
+%{_libdir}/libbzrtp.so.*
+%doc LICENSE.txt
+
+%files -n lib%{name}-devel
+%defattr(-,root,root)
+%dir %{_includedir}/bzrtp
+%{_includedir}/bzrtp/bzrtp.h
+%{_libdir}/libbzrtp.so
+%dir %{_libdir}/cmake/bzrtp
+%{_libdir}/cmake/bzrtp/bzrtp*.cmake
+%doc README.md
+
+%changelog
+* Thu Nov 23 2023 Silvan Calarco <silvan.calarco@mambasoft.it> 5.2.111-1mamba
+- package created using the webbuild interface