Call Result Codes

Below is a summary of the different responses an outbound phone call can receive.

Result Codes	Description
Answering Machine	Answering machine detected.
Banned City Code	Destination not supported.
Banned Number	Destination not supported or number formatted incorrectly.
Blank Number	Phone number field blank.
Busy	Recipient device in use.
Duplicate number	Phone number repeated on list.
Human Answer	Human answer detected.
Insufficient funds	Not enough funds in account to send call.
Invalid Number	Incorrect number of digits in phone number.
No Answer Recipient	Device did not answer.
On Do Not Call List	Phone number on account Do Not Call List.
Operator Intercept	Phone number is not in service.
Sequential number	Phone numbers in a numerical sequence, such as 8185550100, 8185550101, 8185550102, etc.