Microsoft Speech Service Degradation Impacting IVR

Update timeline

1. identified Apr 23, 2026, 07:31 PM UTC

   An issue with Microsoft ASR confidence scores in the East region has been reported by multiple customers using our BankAI solution over IVR. This has been identified as an issue from Microsoft’s end. During our working session, the Microsoft support team acknowledged the problem and is actively working on a fix, although it has not yet been reflected on their status page. For BankAI customers, as an interim mitigation, we have i implemented workaround by handling the minimum confidence score. Other Kore customers using Microsoft ASR in the US East region and relying on confidence scores may also experience similar issues. A possible workaround can be to reduce the minimum confidence score threshold (e.g., set it to 0.01) to allow calls to proceed and minimize impact.

2. resolved Apr 24, 2026, 06:56 AM UTC

   This incident has been resolved.