Communication channels

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Across
  1. 1. The use of spoken words to convey a message (6 letters)
  2. 3. The use of body language, facial expressions, and gestures (8 letters)
  3. 4. A platform used for real-time text communication on a website (4 letters)
  4. 5. The use of electronic devices and platforms to convey a message (10 letters)
Down
  1. 1. A meeting where participants can see and hear each other in real-time (5 letters)
  2. 2. The use of written words to convey a message (7 letters)