COmms

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Across
  1. 1. of digital communication used for many communication platforms like GSM(4)
  2. 3. to enable integration of several mobile phone technologies(4)
  3. 6. European standard for digital cellular systems(3)
  4. 7. standard developed by Nordic Countries(3)
Down
  1. 1. modulation method to successfully produce quality audio over telephone lines is _______ modulation(9)
  2. 2. a series of tones that is utilized for identification of the mobile unit(3)
  3. 4. developed by Japanese(3)
  4. 5. are _______ modes of communication(5)