telephone and camera

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Across
  1. 3. Morse _______
  2. 4. 'graphine'
  3. 5. ... --- ...
  4. 7. Alexander Graham _____ invented the telephone.
  5. 10. The section holding the paper.
  6. 12. 'tele'
  7. 13. A typewriter works by pushing down a ______.
Down
  1. 1. Camera _______ is a pinhole camera.
  2. 2. First internet signals traveled through this.
  3. 6. Telephones change sound into ________ signals.
  4. 8. George Eastman invented this.
  5. 9. Change electrical signals into sound.
  6. 11. This presses a ribbon of ink onto paper.