On Wednesday, June 3, maintenance work will be performed on the VoIP system throughout the day. During this time, all VoIP phones will switch over to their respective backup servers multiple times. …
Tuesday, 19 May 2026 09:00:00The RabbitMQ cluster will be upgraded to version 4.3.x node by node on May 19, 2026, between 9 a.m. and 10 a.m. There should be no processing downtime during the migration.
A malfunction of the …
Monday, 11 May 2026 06:00:00On Monday, 11-May-2026, due to maintenance work, users of phones with the Extension-Mobility feature will need to log in again.
Thank you for your understanding.
Friday, 08 May 2026 13:21:00On the Cisco user portal at https://voip-settings.zih.tu-dresden.de/ucmuser/, the interface is currently only available in English, even though the language is set to “Default (Germany, Germany)” in …
Wednesday, 06 May 2026 09:00:00On Wednesday, May 6, and Thursday, May 7, maintenance work will be performed on the VoIP system throughout the day. System updates will be installed and certificates will be renewed. During this time, …
Wednesday, 25 March 2026 09:00:13On March 25, 2026, support for the Cisco Jabber client as a softphone, chat and CTI client will be discontinued. This will involve the deactivation of the associated Instant Messaging & Presence …
Tuesday, 24 March 2026 09:00:00Starting March 24, 2026, the avatar (profile picture) in the Cisco WebEx softphone client will be synchronized from the self-service portal (Profile -> Profile Picture -> Profile Picture for …
Thursday, 26 February 2026 08:00:24On February 26, 2026, from 09:00 a.m. to 6:00 p.m., the certificates on the VoIP system must be renewed due to changed guidelines.
This will require services and servers to be restarted.
- Phones will …
Wednesday, 18 February 2026 13:00:28On Wednesday, 18.02.2026 between 2 and 6 p.m. the switches at Merkelbau will be migrated to MSTP (Multiple Spanning Tree Protocol). During the migration, recalculations of the spanning tree may result …