HI, I noticed on the mod managed wrapper that [SuppressUnmanagedCodeSecurity] is not added to the classes. Per Microsoft adding this will give substantial performance. Is there any reason why it's not added and is it possible to have it added to the official Freeswitch project? This attribute can be applied to methods that want to call into native code without incurring the performance loss of a run-time security check when doing so. The stack walk performed when calling unmanaged code is omitted at run time, resulting in substantial performance savings. Using this attribute in a class applies it to all contained methods. Thanks Andre