What is the Call History feature?
From VoiceMailTel Wiki
VoiceMailTel's Call History feature acts like a personal assistant, following you around all day tracking the calls you've made and received.
As a subscriber, you receive an online account through which you can view all of your incoming and outgoing calls. You can track employees and sales calls, organize your messages and download them for archive-keeping purposes - or export them to Excel sheets for cost analyses.