Operator Maintenance Viettel Vietnam

Scheduled for Oct 20, 17:00 - 21:00 UTC

Scheduled

Description: Viettel will perform a system upgrade to improve service quality.

Affected services: SMS to Viettel subscribers for Banking, Financial Services, and E-Wallet categories only. All other service categories are not affected.

Expected impact: Service may be unstable during the upgrade window, with possible interruptions of 30–60 minutes.

Affected operator: Viettel only. SMS to all other Vietnam operators will continue to deliver as normal.

For any questions, please contact us at any time.

Posted Oct 19, 2026 - 11:53 UTC

This scheduled maintenance affects: External Connectivity (SMS, Southeast Asia).