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Outage in CallTower

Dial by Name Function Failing

Resolved Minor
July 15, 2026 - Started 2 days ago - Lasted 1 day
Official incident page

Incident Report

Summary AI Generated

The Dial by Name feature failed for a subset of CallTower's Microsoft Teams Operator Connect customers, affecting the Microsoft Teams Direct Routing component for approximately 26 hours. CallTower escalated the issue to Microsoft, who identified and deployed a fix. CallTower engineers validated the resolution across multiple customer tenants and confirmed normal service was restored.

CallTower is investigating reports of the Dial by Name feature not working for some of our Operator Connect customers. We have opened a case with Microsoft to help investigate this issue. *CallTower has opened a master case to investigate this issue as it has been reported by more than one CallTower customer. This issue may or may not directly affect your services and is currently under investigation. If you are affected, please report the issue to support@calltower.com. CallTower intends to post updates on status.calltower.com approximately every 60 minutes, unless identified otherwise. This issue is being investigated as a top priority.

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Latest Updates ( sorted recent to last )
RESOLVED 1 day ago - at 07/16/2026 06:31PM

Microsoft has reported that they have implemented a fix for the issue affecting Dial by Name functionality for Microsoft Teams customers. Following the deployment of the fix, CallTower engineers have completed validation testing across multiple customer tenants and have confirmed that the service is functioning as expected. If you are still experiencing issues, please reach out to support@calltower.com.

CallTower will be closing this master case and all associated cases.

INVESTIGATING 2 days ago - at 07/15/2026 07:01PM

CallTower engineers continue to work with Microsoft to investigate the Dial by Name issue affecting some Teams customers. The issue remains under active review, and escalation efforts are ongoing as both teams analyze available diagnostic information.

We will share additional updates as soon as new information becomes available and thank you for your patience while this investigation continues.

*CallTower has opened a master case to investigate this issue as it has been reported by more than one CallTower customer. This issue may or may not directly affect your services and is currently under investigation. If you are affected, please report the issue to support@calltower.com. CallTower intends to post updates on status.calltower.com approximately every 60 minutes, unless identified otherwise. This issue is being investigated as a top priority.

INVESTIGATING 2 days ago - at 07/15/2026 05:43PM

CallTower engineers continue to investigate the issue affecting Dial by Name functionality for a subset of Teams Operator Connect customers. We remain actively engaged with Microsoft and continue to escalate the matter to assist in identifying the underlying cause and restoring normal service as quickly as possible.

*CallTower has opened a master case to investigate this issue as it has been reported by more than one CallTower customer. This issue may or may not directly affect your services and is currently under investigation. If you are affected, please report the issue to support@calltower.com. CallTower intends to post updates on status.calltower.com approximately every 60 minutes, unless identified otherwise. This issue is being investigated as a top priority.

INVESTIGATING 2 days ago - at 07/15/2026 04:39PM

CallTower is investigating reports of the Dial by Name feature not working for some of our Operator Connect customers. We have opened a case with Microsoft to help investigate this issue.

*CallTower has opened a master case to investigate this issue as it has been reported by more than one CallTower customer. This issue may or may not directly affect your services and is currently under investigation. If you are affected, please report the issue to support@calltower.com. CallTower intends to post updates on status.calltower.com approximately every 60 minutes, unless identified otherwise. This issue is being investigated as a top priority.

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