As mentioned in BYOD Basics: Proper Planning and Considerations , "Bring Your Own Device" provides great potential to one's organization when planned for properly. Choosing the right tools that meet the requirements of your organization requires proper research to ensure said organization's mobile worker connectivity goals are achieved without sacrificing security. This applies to all sizes of organizations. While larger businesses have specific requirements around smartphone and tablet enablement, smaller to medium size businesses can sometimes get by on the bare essentials. While there are a barrage of software offerings to manage and control any BYOD deployment, sometimes all an organization needs is the software already deployed in their own infrastructure.
Read more at source: http://blogs.technet.com/b/canitpro/archive/2013/07/08/byod-basics-exchange-activesync-overview.aspx