For the Mobile Client for Microsoft Dynamics CRM you have to meet the following system requirements, depending on the mobile solution.

Application server

• Application server
  • Windows Server operating system (2000/2003/2008)
  • Java Runtime Environment Version 1.5 and higher

• Microsoft Dynamics CRM software
  • Version 2011 or
  • 4.0

Windows Phone Solution

• Mobile Client for Microsoft Dynamics CRM - Windows Phone 7 Client
• Device with Windows Phone 7

Windows Mobile Solution

• Mobile Client for Microsoft Dynamics CRM - Windows Mobile Client
• Device with Windows Mobile:
  • Windows Phone with Windows Mobile firmware 6.5
  • .NET Compact Framework 3.5

BlackBerry Enterprise Server (BES/MDS)

• Server-Software (for BlackBerry Solution)
  
  • BlackBerry Enterprise Server (SBES/BPS/BES)
    
    
• BlackBerry-Client for Microsoft Dynamics CRM Software
  • Mobile Client for Microsoft Dynamics CRM / server-Software
  • Mobile Client for Microsoft Dynamics CRM / client-Software
    
    
• Device
  • RIM BlackBerry Smartphone with firmware 4.5 and higher
    
    
• Mobile communication
  • BlackBerry Solution (APN) with data volume

BlackBerry Internet Service (BIS)

• public server (IP reachable and if neccessary an open port)
  
  
• BlackBerry-Client for Microsoft Dynamics CRM Software
  • Mobile Client for Microsoft Dynamics CRM / server-Software
  • Mobile Client for Microsoft Dynamics CRM / client-Software
    
    
• Device
  • RIM BlackBerry Smartphone with Firmware 4.5 and higher
    
    
• Mobile communication
  • BlackBerry Solution (APN) with data volume

iPhone Solution

• Mobile Client for Microsoft Dynamics CRM - iPhone client
• Device
  • Apple iPhone OS with firmware 3.1.3 and higher

iPad Solution

• Mobile Client for Microsoft Dynamics CRM - iPad client
• Device
  • Apple iPad OS with Firmware 3.1.3 and higher

Android Solution

• Mobile Client for Microsoft Dynamics CRM - Android client
• Device
  • Android OS with Version 2.2 and higher