Dear customers,
We have planned a maintenance in order to perform an urgent upgrade on our voice switches.
During this maintenance, we will restart both switches of our primary voice cluster one by one. After each switch has booted up, we will wait 3 to 5 minutes before restarting the next one. While one switch is restarting, the other switch remains active and takes over its traffic, so the voice service stays available throughout the maintenance.
Calls that are active on a switch at the moment it goes down will be interrupted. The same applies when the switch comes back online. In total, there will be 4 short disruptions, spaced 3 to 5 minutes apart. At each disruption, only the calls handled by the switch being restarted are cut. Calls on the other switch stay connected and are not impacted.
Please find all details below:
| Start*: | 01-10-2026 23:00 |
|---|---|
| End*: | 01-10-2026 23:30 |
| Duration: | Up to 30 minutes |
| Impacted services: | Fixed telephony |
| Affected Areas**: | All areas |
We apologize for the inconveniences.
* All times are listed in CET, Central European Time
** Check the different areas & zones on our support site