Zentyal does not seem to be compatible with Windows Phone. I know WP8 only supports Exchange 2003 and up which I thought Openchange opperated in. Is this a bug or a limitation? We have 4 Windows Phones in my organization (one being the bossman) so I need to know if this is possible before going forward. The error I receive is: "Your Windows Phone doesn't support this server version. Contact your support person or service provider. Error code 85002028".