Past Incidents

Beginning: 20.01.2022 – 11.45 PM

Ending: 21.01.2022 – 01.30 AM

Internal ref: DTCAB-2449

Impact: Disturbance of a maximum of 5 minutes of telephony

Dear customer, dear partner,

Please note that our technical team will perform a maintenance on the night of Thursday the 20th of January 2022, which will end at 1.30 AM the next morning.

During this timeframe, you may experience a maximum of 5 minutes of disturbances on your telephony systems.

No intervention is needed from your side.

Best regards;

SEWAN Technical Team

Beginning: 13.01.2022 – 3.22 PM

Ending: 13.01.2022 – 3.40 PM

Impact: Call disturbances

Dear customer, dear partner,

On 13.01.22 at 3.17 PM, our voice network handled a huge and unexpected amount of outbound calls which were providing from several sources, generating several thousands of CAPS (Call Attempt Per Second).

Despite our security mechanism immediately triggered, the behavior kept going on for long, which started to impact our Voice servers at 3.22 PM.

Source of unexpected calls were immediately discovered by our engineers, and were temporarily banned. Situation went back to normal at 3.40 PM.

In order to prevent this from happening in the future, our team improved the above-mentioned mechanism by limiting the number of CAPS per IP address by 100 every 5 seconds, after what the IP address will be temporarily banned.

Best regards

SEWAN Technical Team