MU telephone network outage on 15 September from 19 to 21h

The MU voice network requires a system upgrade due to an unsupported software version. For this reason, an upgrade will be performed on Sept. 15 from 7 to 9 p.m., during which the entire landline network will be unavailable. This outage will also affect other voice devices, such as building and corridor entry communication devices and bells on the barriers, and it will not be possible to call for help in the event of a jam via the elevator button.

It will also not be possible to make changes to the control panel two days before this event (i.e. 13 and 14 September). Please wait until the upgrade is complete if you need to make any changes.

Thank you for your understanding, and we apologise for any complications.