All Systems Operational
Uptime over the past 90 days. View historical uptime.
Inbound Calling ? Operational
90 days ago
99.99 % uptime
Today
Outbound Calling ? Operational
90 days ago
99.99 % uptime
Today
Desktop App ? Operational
90 days ago
100.0 % uptime
Today
Mobile App ? Operational
90 days ago
100.0 % uptime
Today
Meetings ? Operational
90 days ago
99.7 % uptime
Today
Messaging ? Operational
90 days ago
100.0 % uptime
Today
Contact Center ? Operational
90 days ago
100.0 % uptime
Today
API ? Operational
90 days ago
100.0 % uptime
Today
Operational
Degraded Performance
Partial Outage
Major Outage
Maintenance
Major outage
Partial outage
No downtime recorded on this day.
No data exists for this day.
had a major outage.
had a partial outage.

No incidents or maintenance related to this downtime.

Past Incidents
Apr 27, 2024

No incidents reported today.

Apr 26, 2024
Increased error rate at SIP proxies affecting voice calling
Resolved - This incident is confirmed to be resolved at this time. Thank you very much for your patience which has allowed us to diagnose and remove the malicious traffic from entering our network.

RCA report:
At approx. 11:35am CST we experienced an issue with our SIP Proxy reporting issues and not being able to handle incoming voice traffic.

Our engineering team responded to the issue immediately upon being notified and continued to investigate the source of the issue until 12:00 CST.

At approx. 12:05pm CST the engineering team identified the source of the issue. We determined that the issue was related to malicious SIP fragmented messages. We proceeded to disable the SUBSCRIBE handler in our proxies to mitigate the issue in order to allow calls to take place.

At approx. 12:45pm CST the engineering team identified the source ip causing the issue. We determined that the malicious SIP SUBSCRIBE traffic was coming from an IP that hadn't yet made it to the APIBAN blacklist. We proceeded to block the IP manually which allowed us to enable the SUBSCRIBE traffic again on our proxies.

At approx. 1:10pm CST we determined it was safe to say that the malicious traffic had been fully mitigated and we proceeded to mark this issue resolved.

We are very sorry for the inconvenience this has caused your business and we have been working diligently to add more proactive measures in place to prevent this type of event from happening in the future.
Apr 26, 15:29 CDT
Monitoring - A fix has been implemented to block the malicious traffic and BLF has now been enabled. We are monitoring the ingress traffic to ensure things are back to normal and will update here as soon as possible.
Apr 26, 13:16 CDT
Identified - We've identified the issue to be related to malicious devices sending a malformed SIP SUBSCRIBE message. While we continue to determine the source of the device(s), we have continued to disable the BLF functionality.
Apr 26, 12:27 CDT
Investigating - We are currently undergoing an issue with receiving a high amount of SIP SUBSCRIBE requests to our SIP Proxies resulting in degraded voice calling. We are investigating the source and will update here ASAP. We have disabled the BLF functionality while we diagnose the issue so BLF lights on phones will not function right now.
Apr 26, 12:22 CDT
Apr 25, 2024

No incidents reported.

Apr 24, 2024

No incidents reported.

Apr 23, 2024

No incidents reported.

Apr 22, 2024

No incidents reported.

Apr 21, 2024

No incidents reported.

Apr 20, 2024

No incidents reported.

Apr 19, 2024

No incidents reported.

Apr 18, 2024

No incidents reported.

Apr 17, 2024

No incidents reported.

Apr 16, 2024

No incidents reported.

Apr 15, 2024

No incidents reported.

Apr 14, 2024

No incidents reported.

Apr 13, 2024

No incidents reported.

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