- Level
- confirmed
- Worst impact
- Degraded
- Components
- Phone Call Delivery, Phone Call Delivery, Phone Call Delivery, Phone Call Delivery, Phone Call Delivery, Phone Call Delivery, Phone Call Delivery, Phone Call Delivery, Phone Call Delivery, Phone Call Delivery, Phone Call Delivery, Phone Call Delivery, Phone Call Delivery, Phone Call Delivery, Phone Call Delivery, Phone Call Delivery, Phone Call Delivery, Phone Call Delivery, Phone Call Delivery, Phone Call Delivery, Phone Call Delivery, Phone Call Delivery, Phone Call Delivery, Phone Call Delivery, Phone Call Delivery, Phone Call Delivery, Phone Call Delivery, Phone Call Delivery, Phone Call Delivery, Phone Call Delivery, Phone Call Delivery, Phone Call Delivery, Phone Call Delivery, Phone Call Delivery, Phone Call Delivery, Phone Call Delivery, Phone Call Delivery, Phone Call Delivery, Phone Call Delivery, Phone Call Delivery, Phone Call Delivery, Phone Call Delivery, Phone Call Delivery, Phone Call Delivery, Phone Call Delivery, Phone Call Delivery, Phone Call Delivery, Phone Call Delivery, Phone Call Delivery, Phone Call Delivery, Phone Call Delivery, Phone Call Delivery, Phone Call Delivery, Phone Call Delivery, Phone Call Delivery, Phone Call Delivery, Phone Call Delivery, Phone Call Delivery, Phone Call Delivery, Phone Call Delivery, Phone Call Delivery, Phone Call Delivery, Phone Call Delivery, Phone Call Delivery, Phone Call Delivery, Phone Call Delivery, Phone Call Delivery, Phone Call Delivery, Phone Call Delivery, Phone Call Delivery, Phone Call Delivery, Phone Call Delivery, Phone Call Delivery, Phone Call Delivery, Phone Call Delivery, Phone Call Delivery, Phone Call Delivery, Phone Call Delivery, Phone Call Delivery
- Regions
- in
- Down Index
- 27of 100
What to do
Check whether you use Duo Security Phone Call Delivery, Phone Call Delivery, Phone Call Delivery, Phone Call Delivery and 75 more in in. Check your stack
Paste a package.json, lockfile, Terraform or a list of domains at down.guide/stack to see every provider you depend on.Confirm your retries, queues and scheduled jobs caught up after the 11h 47m it lasted.
Anything that failed between 2025-07-31 12:04 UTC and 2025-07-31 23:50 UTC may need a replay.Subscribe to Duo Security's feed to hear about the next one first. RSS feed
https://down.guide/feed?provider=duo works in Slack (/feed subscribe), Discord feed bots and any RSS reader.
Updates from Duo Security 4
- investigating
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.
provider
- identified
We have identified the cause of the VoIP authentication failures in India and are working on a solution. In the meantime, a workaround has been applied and we are seeing increased success rates. Please check back here or subscribe to updates for any changes.
provider
- monitoring
We are now observing high rates of success of VoIP authentication in India. We will continue to monitor the authentications and post any updates if the situation changes or if the incident is considered fully resolved.
provider
- resolved
The issue causing VoIP authentication failures in India is resolved and VoIP authentication services are functioning as expected.
provider
Reports count in aggregate; nothing about you is shown.
Corrections
None so far.
Something wrong on this page? Report an error or send us a note. Every fix is listed here.
Questions about DWN-56b2eeabcf
Is Duo Security still down?
No, this incident was resolved 2025-07-31 23:50 UTC. For Duo Security's live state, see https://down.guide/duo.
How long did it last?
11h 47m, from 2025-07-31 12:04 UTC to 2025-07-31 23:50 UTC, by the times Duo Security posted.
What was affected?
Duo Security named Phone Call Delivery, Phone Call Delivery, Phone Call Delivery, Phone Call Delivery and 75 more in in.
What caused it?
Duo Security hasn't published a root cause. If it does, it shows here.
Where does this come from?
Duo Security's official status page, https://status.duo.com, quoted verbatim. down.guide's own probes, reports and social counts are labeled as ours.