Dear Customer,

We are writing to inform you that we have completed the maintenance work on Telstra Integrated Messaging for NAB.

Change reference: PCR-6675

Description: 2 of 2 BCP Failback

Maintenance start time: 16 September 2025, 1:00 AM AEST

Maintenance end time: 16 September 2025, 2:30 AM AEST

Impact: 1min Outage from 01:15:00am to 01:16:30 AEST

Dear Customer,

We are writing to inform you that we have completed the maintenance work on Telstra Integrated Messaging for NAB.

Change reference: PCR-6674

Description: 1 of 2 BCP Failover

Maintenance start time: 13 September 2025, 1:00 AM AEST

Maintenance end time: 13 September 2025, 2:05 AM AEST

Impact: 1 min Outage - From 1:41AM to 1:42AM AEST.