Maintenance work: Certificate update Cisco CallManager

On 08.12.2025 between 4.00 p.m. and 10.00 p.m.

2025/12/04

During the specified period, certificates will be updated on the central components of the Cisco CallManager environment. Therefore, there may be a brief outage or a need to re-register with Jabber softphones. Cisco and Alcatel telephony are not expected to be affected.