What is intercom used for?

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Tags

  1. #functioning
  2. #talkback
  3. #intercommunication
  4. #permanently
  5. #building
  6. #mounted
  7. #stand
  8. #communications
  9. #intercoms
  10. #vehicles
  11. #collection
  12. #alone
  13. #system
  14. #azori
  15. #network
  16. #generally
  17. #doorphone
  18. #voice
  19. #telephone
  20. #buildings
  21. #independently
  22. #intercom
  23. #small
  24. #within
  25. #device
  26. #public