Check if Duo Security Phone Call Delivery is down, recent outages, user-reported issues, and outages map.
Duo Security Phone Call Delivery is working normally
Last checked from Duo Security's status page
This chart displays the number of user-reported issues over the past 24 hours, grouped into 20-minute intervals. It's normal to see occasional reports, which may be due to individual user issues rather than a broader problem. We only consider an issue widespread if there are multiple reports within a short timeframe.
IsDown has tracked 33 incidents for Duo Security Phone Call Delivery since started monitoring Duo Security status in April 2020. We collect data from 4400+ services, and normalize the data to give you a clear picture of the impact of the outage.
about 1 month ago · lasted about 12 hours
We are currently investigating an issue causing phone call authentication failures in India on all of our deployments and are working to correct the issue as soon as possible. Please check back here or subscribe to updates for any changes.
about 1 month ago · lasted about 2 hours
We are currently investigating an issue causing phone call authentication failures in India on all of our deployments and are working to correct the issue as soon as possible. Please check back here or subscribe to updates for any changes.
about 1 month ago · lasted about 2 hours
We are currently investigating an issue causing phone call authentication failures in India on all of our deployments and are working to correct the issue as soon as possible. Please check back here or subscribe to updates for any changes.
We've tracked and collected 33 incidents for Duo Security Phone Call Delivery since started monitoring Duo Security status
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Services commonly monitored together with Duo Security
Duo Security Phone Call Delivery isn't down. You can check Duo Security Phone Call Delivery status and incident details on the top of the page. IsDown continuously monitors Duo Security Phone Call Delivery official status page every few minutes. In the last 24 hours, there were 0 outages reported.
Duo Security Phone Call Delivery is currently operational. You can check Duo Security Phone Call Delivery status and incident details on the top of the page. The status is updated in almost real-time, and you can see the latest outages and issues affecting customers.
No, there is no ongoing official outage. Check on the top of the page if there are any reported problems by other users.
Currently there's no report of Duo Security Phone Call Delivery being slow. Check on the top of the page if there are any reported problems by other users.
IsDown monitors the Duo Security Phone Call Delivery official status page every few minutes. We also get reports from users like you. If there are enough reports about an outage, we'll show it on the top of the page.
Duo Security Phone Call Delivery last outage was on July 31, 2025 with the title "India VoIP Failures"
IsDown and DownDetector help users determine if a service is having problems. The big difference is that IsDown is a status page aggregator. IsDown monitors a service's official status page to give our customers a more reliable source of information. The integration allows us to provide more details about the outage, like incident title, description, updates, and the parts of the affected service. Additionally, users can create internal status pages and set up notifications for all their third-party services.
IsDown offers an easy way to monitor Duo Security with maximum flexibility
IsDown monitors Phone Call Delivery for major outages. A major outage is when Phone Call Delivery experiences a critical issue that severely affects one or more services/regions. When Duo Security marks an incident as a major outage, IsDown updates its internal status, the customer status page and dashboard. Depending on the customer settings, IsDown will also send notifications.
IsDown monitors Duo Security status page for minor outages. A minor outage is when Phone Call Delivery experiences a small issue affecting a small percentage of its customer's applications. An example is the performance degradation of an application. When a minor outage occurs, IsDown updates its internal status and shares that information on the customer status page. Depending on the customer settings, IsDown will also send notifications.
IsDown collects all information from the outages published in Duo Security status page to provide the most accurate information. If available, we gather the title, description, time of the outage, status, and outage updates. Another important piece of information is the affected services/regions which we use to filter the notifications that impact your business.
Duo Security publishes scheduled maintenance events on their status page. IsDown collects all the information for each event and creates a feed that people can follow to ensure they are not surprised by unexpected downtime or problems. We also send the feed in our weekly report, alerting the next maintenances that will take place.
IsDown monitors Duo Security and all their 528 components that can be affected by an outage. IsDown allows you to filter the notifications and status page alerts based on the components you care about. For example, you can choose which components or regions affect your business and filter out all other outages. This way you avoid alert fatigue in your team.
Duo Security and other vendors don’t always report outages on time. Our crowdsourced status platform helps you stay ahead of outages. Users report issues and outages, sharing details on what problems they are facing. We use that info to provide early signs of outages. This way, even without an official update, you can stay ahead of possible problems.
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