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GSM Requirements

• The quality of Voice in the GSM system must be better then that achieved by the 900MHz analogue systems over all the operating conditions.
  
  

• The system must offer encryption of user information
  
  
• The system must operate in the entire frequency band 890-915MHz and 935-960MHz.
  
  
• An international standardised signaling system must be used to allow the interconnection of mobile switching center's and location registers.
  
  
• Minimise modifications to the existing fixed public networks.
  
  
• Design the system so handset costs are minimised
  
  
• Handsets must be able to be used in all participating countries
  
  
• Maximum flexibility for other services like ISDN
  
  
• System should maximise the functions and services available to cater for the special nature of mobile communications.