|IN_SMS_CONTENT||Inappropriate SMS content or Invalid Message Length|
|INVALID_NUM||Invalid destination. Receiver is not a valid number|
|INVALID_SENDERID||Invalid sender ID|
|OPERATOR_NOT_SUPPORT||Local Operator doesn’t support|
|PHONE_NOT_AVAILABLE||Phone number or handset is not available, or handset memory capacity exceeded.|
|RECEIVER_BLACKLIST||Receiver is black-listed, blocked by Carrier|
|SYSTEM_ERR||System error, caused by network operator, need to submit ticket to check the specific failed reason|
|UNKNOWN_ERR||Failed message delivery,need to submit ticket to check the specific failed reason|
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