OIT incident

Inbound and Outbound Calling through the Teammate Teams Connector Intermittently Failing

Resolved after 2 hours 55 minutes, on July 23, 2026.

resolved Jul 23, 2026, 07:38 PM UTC

What Occurred: Teams Calling intermittently failing with one-way or no-way audio. What is Affected: Inbound and Outbound Calling through the Teammate Teams Connector When it began: 11:00am ET, July 23, 2026 Current Status: At 2:36pm ET, Microsoft successfully reverted a network change, along with rerouting traffic, which has restored services on their end. After internal testing, we have confirmed inbound and outbound calling services have been restored. Next Steps: * If inbound or outbound calling does not immediately return, please restart the Teams app and reopen. If you continue experiencing call failures, please submit a support ticket to [[email protected]](mailto:[email protected]) * With Microsoft being the root cause of the underlying service outage, and not having visibility into the root cause, no major incident report will be provided..

Started
Jul 23, 2026, 04:43 PM UTC
Resolved
Jul 23, 2026, 07:38 PM UTC
Duration
2h 55m
Detected by Pingoru
Jul 23, 2026, 04:43 PM UTC

Update timeline

  1. identified Jul 23, 2026, 04:43 PM UTC

    What Occurred: Teams Calling intermittently failing with one-way or no-way audio. What is Affected: Inbound and Outbound Calling through the Teammate Teams Connector. When it began: 11:00am ET, July 23, 2026 Current Status: At 11:06am ET, Microsoft put out an Incident notification that they are aware of M365 Services being impacted and are investigating, but do not have a full scope of services impacted at this time. Next Steps: To continue being able to make and receive phone calls, we recommended installing the CloudieConnect app for [Desktop](https://voipdocs.io/cloudieconnect-desktop/cloudieconnect-desktop-overview)/Mobile ([iOS](https://apps.apple.com/us/app/cloudieconnect/id6747597037?platform=iphone) \+ [Android](https://play.google.com/store/apps/details?id=com.oitvoip.cloudieconnect&pcampaignid=web%5Fshare)) or utilize SNAPmobile web. Next Update: July 23 2026, 1:30pm ET.

  2. identified Jul 23, 2026, 05:29 PM UTC

    What Occurred: Teams Calling intermittently failing with one-way or no-way audio. What is Affected: Inbound and Outbound Calling through the Teammate Teams Connector. When it began: 11:00am ET, July 23, 2026 Current Status: At 12:47pm ET, Microsoft identified alternate network paths and performed traffic rerouting for some services, which contributed to partial recovery. They are scaling up rerouting efforts while continuing to evaluate additional mitigation actions. Next Steps: To continue being able to make and receive phone calls, it is recommended to install the CloudieConnect app for [Desktop](https://voipdocs.io/cloudieconnect-desktop/cloudieconnect-desktop-overview)/Mobile ([iOS](https://apps.apple.com/us/app/cloudieconnect/id6747597037?platform=iphone) \+ [Android](https://play.google.com/store/apps/details?id=com.oitvoip.cloudieconnect&pcampaignid=web%5Fshare)) or utilize [SNAPmobile web](https://voipdocs.io/mobile-applications/how-to-use-snapmobile-web). Next Update: July 23, 2026, 2:30pm ET.

  3. identified Jul 23, 2026, 06:21 PM UTC

    What Occurred: Teams Calling intermittently failing with one-way or no-way audio. What is Affected: Inbound and Outbound Calling through the Teammate Teams Connector. When it began: 11:00am ET, July 23, 2026 Current Status: At 1:04pm ET, Microsoft continues to scale up rerouting efforts and are seeing indications of increasing restoration of services. They continue to implement additional mitigation measures alongside these actions. Next Steps: To continue being able to make and receive phone calls, it is recommended to install the CloudieConnect app for [Desktop](https://voipdocs.io/cloudieconnect-desktop/cloudieconnect-desktop-overview)/Mobile ([iOS](https://apps.apple.com/us/app/cloudieconnect/id6747597037?platform=iphone) \+ [Android](https://play.google.com/store/apps/details?id=com.oitvoip.cloudieconnect&pcampaignid=web%5Fshare)) or utilize [SNAPmobile web](https://voipdocs.io/mobile-applications/how-to-use-snapmobile-web). Next Update: July 23, 2026, 3:30pm ET.

  4. resolved Jul 23, 2026, 07:38 PM UTC

    What Occurred: Teams Calling intermittently failing with one-way or no-way audio. What is Affected: Inbound and Outbound Calling through the Teammate Teams Connector When it began: 11:00am ET, July 23, 2026 Current Status: At 2:36pm ET, Microsoft successfully reverted a network change, along with rerouting traffic, which has restored services on their end. After internal testing, we have confirmed inbound and outbound calling services have been restored. Next Steps: * If inbound or outbound calling does not immediately return, please restart the Teams app and reopen. If you continue experiencing call failures, please submit a support ticket to [[email protected]](mailto:[email protected]) * With Microsoft being the root cause of the underlying service outage, and not having visibility into the root cause, no major incident report will be provided..

Your product runs on more than OIT

Add the vendors you depend on and get one message when any of them reports trouble. Free for 3 vendors, no card.

Add your stack →