Explination for words used in the reporting tool

General Help
1

Hi,

Can anyone give me an exact definition to the following words used in the CDR Reports?

Answer:
Background:
Busy:
Chanspy:
Congestion:
Dial:
Directory:
Hangup:
Macro:
Playback:
Voicemail:
Wait:
waitExten:

Thank you for your help!