There is a carrier-side incident currently impacting short code (route 1) SMS-DLR services.
Customers may experience latency impacting SMS-DLR messaging via short code (route 1) with AT&T.
The cause of this issue is under investigation at this time.
Please see the list of impacted products and/or services below and contact the Convey Help Desk with any questions. We will provide more information as it becomes available.