(Telecompaper) Telefonica has launched a joint marketing effort with Microsoft to boost sales of Windows Phone 8 devices. Initially for a period of one year, Telefonica will enhance marketing activities in support of its Windows Phone 8 devices in the UK, Germany, Spain, Mexico, Brazil and Chile. Telefonica plans to offer its clients enterprise-class business features such as Office 365 and SharePoint, as well as consumer-facing features such as Skydrive and Xbox.