Classification of channels of communication:
•Visual channel: Facial expression, body language, posture, gestures, pictures & written words, electronic mails, mass media, etc.
•Auditory channel: Spoken words, sounds, telephone or mobile communications, delivering audio content (radio, voicemail), etc.
•Tactile channel: Touch sensations, therapeutic touch, etc.
•Combined channel: Audiovisual media, consoling a person with touch & spoken words.
It is very important to learn to manage and identify all communication channels. Sometimes, they send us messages that we are unable to understand.
Thanks for posting.