Internal and external communication

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Across
  1. 3. Information expressed in numbers
  2. 5. Text message
  3. 6. The method of communication
  4. 8. Specialized terms that are hard for outsiders to understand
  5. 10. Another word for horizontal (at the same level)
  6. 11. A method of visual communication using e.g. lines or bars
  7. 12. Without this it is not sure if the message arrived
  8. 14. Oral method of communication (involves the sender speaking)
  9. 16. The sender of information
  10. 17. Examples: Calvin and Hobbes, Peanuts and Garfield
Down
  1. 1. Methods of communication such as diagrams, charts and videos
  2. 2. An example of one-way communication
  3. 4. Often abbreviated as memo
  4. 7. Email system within the company
  5. 9. The person to whom the message should be sent
  6. 13. Informal communication: gossip, passing on rumors
  7. 15. Obstacle