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DLR Error Code 4 Call Barred By User


Symptom

When sending outbound SMS, I received delivery receipt error code 4.

Applies To

  • Outbound SMS
  • Delivery Receipts (DLRs)
  • Error Code 4

Resolution

Delivery receipt error code 4 Call Barred by User is a permanent error. The number should be removed from the client's database.

If the end user wants to receive SMS, they should contact the network operator directly to resolve this issue.

Additional Information

For more information see, What happens when you send SMS to a barred number?

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