Active: The call is currently active.

Dialing: The API is initiating dial to a user.

Ringing: the dialed user is ringing.

Bridged: The dial user has answered the call.

Completed: The call has ended.

NotAnswered: When an outbound call via API was not answered.

Enqueued: When you use the Enqueue call action.

Dequeued: When an Enqueued call is dequeued.

Expired: After a re-try of an outbound call we send Expired which means we were not able to reach it after 6hrs. 

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Useful Links (Inquiries and More Information)
​Voice Documentation
​Voice Website Page
Voice Email: voice@africastalking.com