1. It is the way of communicating with spoken words. It's a verbal form of communication where you communicate your thoughts, present ideas and share information. 

2. It refers to the source of the information or message.

3. This deals with information, ideas or thoughts conveyed by the speaker in words or in actions.

4. This refers to the medium or the means, such as personal or non-personal, verbal or non-verbal, in which the encoded message is conveyed.

5. It deals with the reactions, responses or information provided by the receiver.