External Maintenance - AT&T- US
Scheduled Maintenance Report for Sinch
Completed
Dear Client,

We are writing to inform you that AT&T - US has postponed the maintenance listed below until further notice.

Type: Scheduled Maintenance

Start Time: 2021-08-03 00:00 UTC
End Time: 2021-08-03 12:00 UTC

Impact MT: Clients may experience delayed/rejected/failed Short Code SMS and MMS MT traffic towards AT&T
Impact MO: Clients may experience delayed/rejected/failed Short Code SMS and MMS MO traffic from AT&T
Impact DLR: Clients may experience delayed/rejected/failed Short Code SMS and MMS DLR traffic from AT&T

Please contact support@sinch.com should you require further information or assistance.
Posted Aug 02, 2021 - 15:53 UTC
Scheduled
Dear Client,

We are writing to inform you that AT&T - US is conducting an extended maintenance on their platform at the times specified below.

Type: Scheduled Maintenance

Start Time: 2021-08-03 00:00 UTC
End Time: 2021-08-03 12:00 UTC

Impact MT: Clients may experience delayed/rejected/failed Short Code SMS and MMS MT traffic towards AT&T
Impact MO: Clients may experience delayed/rejected/failed Short Code SMS and MMS MO traffic from AT&T
Impact DLR: Clients may experience delayed/rejected/failed Short Code SMS and MMS DLR traffic from AT&T

On behalf of AT&T - US we appreciate your patience and apologize for any inconvenience during this maintenance period.

If for any reason the maintenance is extended or cancelled we will advise you accordingly.
Please contact support@sinch.com should you require further information or assistance.
Posted Jul 26, 2021 - 08:08 UTC
This scheduled maintenance affected: Connectivity by region (SMS - US - ShortCode, MMS - US).