Status on Voice API
0 - Failed: No answer, busy or unreachable.
1 - Success: Execute with success.
2 - Forbidden: Wrong format of the phone number or no number.
3 - Unknown: Error Unknown.
4 - Not Called: Not Called yet.
5 - Answer: Call Answered.
6 - Calling: In calling.
7 - NotEnoughCredit: Not Enough Credits on your account.
8 - InBlackList: If the number you tried to call is in the blacklist, you can't call this number (es.Disiscrizione).
9 - Duplicated: If the number is inserted 2 times in a contact list (Only for SENDService Campaigns or API with Contact List).
10 - FailedTTSConversion: Internal error on generating the Audio File from a TTS.
11 - Processing: System is generating the Audio file and the originate of the call.