Microsoft Dynamics CRM is the essential business tool to help you stay connected and productive wherever you are. Stay up to date with your customer info—even when you’re on the go. Arrive prepared for every appointment, and update your notes, tasks, contacts, accounts, leads, and opportunities while the details are still fresh in your mind. This app is for use Internet-facing deployments (IFDs) of Microsoft Dynamics CRM Online Fall '13 and Microsoft Dynamics CRM 2013.
More info: CRM for phones: Set up and use - http://go.microsoft.com/fwlink/?LinkID=321832
More info for admins: Set up CRM for phones - http://go.microsoft.com/fwlink/?LinkID=327922