Our Telecom, Our Network Backbone

123456789
Across
  1. 3. An European standard for digital cellular systems(3)
  2. 4. Standard developed for cellular use in North America(4)
  3. 5. System to enable integration of several mobile phone technologies(4)
  4. 7. General name given to systems developed out of need for more capacity(3)
  5. 9. There are _______ modes of communication(5)
Down
  1. 1. Form of digital communication used for many communication platforms like GSM(4)
  2. 2. First modulation method to successfully produce quality audio over telephone lines is _______ modulation(9)
  3. 6. Cellular standard developed by Nordic Countries(3)
  4. 7. Standard developed by Japanese(3)
  5. 8. Is a series of tones that is utilized for identification of the mobile unit(3)