FAQ - New phone system (CISCO)

What to do if no login to phone possible "phone is registering"

If the phone registration hangs at "Phone is registering" the following workaround can be tried:

Please reset phone to factory settings:

--> open settings (gear icon) press
--> administrator settings
--> Reset device
--> All settings
--> Confirm query

Where can I find information regarding CISCO

You will find further information on the Cisco Telephone System page.

Who can I contact if I have unanswered questions here?

Please contact the IT-ServiceDesk.

What to do if Jabber says "Chatroom has been deleted"?

This may be an erroneous message.
If the room has not been removed by an administrator, open the Jabber chatroom tab and choose 'all rooms' instead of 'my rooms'.
Refresh the list there and check whether the room is available.
If it is, you can simply rejoin the room or contact a room administrator.

CISCO Jabber for Windows doesn't let me sign in!

If you are unable to log in your Jabber-Client or the Phone-Services are not registering, try the following procedures:

Restart Jabber. Click on the small cogwheel symbol → Exit. Start Cisco Jabber again.
Sign out. Click on the small cogwheel symbol → Sign Out. Click again on Sign In and complete the RWTH-SingleSignOn process.
Reset Jabber. Click on the small cogwheel symbol → Sign Out. Click on Reset Jabber. Type in your RWTH-Account-name followed by @rwth-aachen.de ein (e.g. ab123456@rwth-aachen.de)

If you are still unable to login, please try to delete the Jabber-configuration files:

Close the Jabber client. Check that the Icon in the task bar is gone, as Jabber may still be running in the background.
Reset the Jabber client by removing the folders for usage data:
1. Press <WIN>-R to start a program
2. enter 'cmd' and confirm you wish to open the command prompt.
3. execute the following commands:
  1. del /S /Q "%localappdata%\Cisco\Unified Communications"
  2. del /S /Q "%appdata%\Cisco\Unified Communications"
4. restart Jabber and sign in again.

Jabber (Windows) uses 15% of my CPU ressources!

Should you be experiencing this, first close the Jabber client. Note that closing the window does not shut down Jabber completely, as it will keep running in the background, taking up fewer resources.

You can pull up the Jabber window again at any time by pressing the icon "" in the system tray.

Where can I report an incident?

Incidents can be reported to the IT-ServiceDesk via fax, email oder telephone.
We ask you to please include all the information requested in the forms in order to avoid unnecessary back and forth and ensure a swift resolution of the incident.

My phone shows the message "HTTP-error [500]!". What shoud I do?

This message can be closed with the help of the "Close" button.

Such message appears when the server cannot be reached. If the message appears again the next day after you have closed it, please contact the IT-ServiceDesk.

How can I make my number available again in the Jabber client?

The following solutions can be helpful:

In the TK portal: Deactivate and reactivate the Android or Iphone profile by clicking on the slider.
Uninstall the Jabber Client or the Iphone app and reinstall it.
Check the mobile data or the WLAN and, if possible, try out accessibility with both.
If possible, try another cell phone.

Am I no longer reachable if I am logged out on all devices?

Users who have logged off from all devices are unreachable if they have not otherwise informed the telephone system where the call is to be routed.
The way to do this is to set call forwarding.
Users can configure under which conditions calls should be diverted: This can also be initiated precisely for the case that one is no longer logged on to any device
See: Forwarding using the TK-Portal