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Update: Registration problems with VoIP telephones (beendet)
From: 30.06.2021 / 00:00
To: 12.07.2021 / 18:00
There is currently a problem with the certificates of the VoIP telephones.
Most phones have now installed the new certificates and should no longer have any problems registering with the call manager.

An exception are the WLAN phones 8821, which partially resist persistently against the new certificates. Since it is not possible to switch off the battery-powered phones, we would like to ask all users of a WLAN phone, whose device doesn't register to the callmanager, to remove the battery for a short time. Thank you very much.

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