Consecutive Interpretation: Interpreters relay their interpretations when a speaker pauses or stops every 3-5 minutes. Interpreters often switch back and forth between the parties who are communicating.
Whisper Interpretation: The interpreter sits behind or next to the person/participant (or group of people), and whispers or speaks softly while interpreting in the target language.
Phone Interpretation: Can be either simultaneous or consecutive. The interpreter does not see both parties, but interprets via telephone.
Video Interpretation: Can be either simultaneous or consecutive. The interpreter translates via webcam, and sees both parties.