There are three different types of voice intonation:
1) Rising Intonation - this is when someone asks a question. It is often used to elicit a response from the listener.
2) Falling Intonation - this is when someone makes a statement. It provides closure and helps the listener know that the speaker has finished speaking.
3) Level Intonation - this is when someone speaks in a monotone voice without any change in pitch or volume.