Maintenance work: Telephony – CallManager

On 26.08.2025 between 12.30 p.m. and 08.00 p.m.

2025/08/19

A security update for Cisco CallManager will be installed during the specified period. No changes can be made to the system during maintenance (e.g. via the UC portal). Desk phones will automatically restart at 6 p.m. Ongoing calls via Cisco Jabber will not be interrupted. The Alcatel system is not affected by the maintenance.