You can report Cisco phone malfunctions as follows:

• By phone at 24680;
• Online via ticket portal: https://ticketportal.itc.rwth-aachen.de
• or by e-mail to servicedesk@itc.rwth-aachen.de
• Chat via the „Chat Support“ button on the bottom right of the IT Center pages.

In order to be able to correct the fault as quickly as possible, we require the following information:

• MAC address of the telephone or serial number (not the WLAN MAC; the MAC address can be found on the back of the telephone set or in the telephone menu):
  • if ascertainable switch or socket number:
• Type of phone (Desk phone/conference room phone/hallway phone/WLAN phone):
• Brief error description (defect of the telephone):
   
• Building no. (if not known the address):
• Room no.(optionally floor/hallway):
• if known Institute/organizational unit:
   
• Date/time (first occurrence of fault):
   
• Working callback number:    

On-call service

Please inform the IT-ServiceDesk in the time period from 7:30 a.m. - 6:00 p.m. under the phone number: 0241 80-24680.

After 6:00 p.m., in urgent cases, the on-call telephone service can be reached exclusively at the times listed below via the service number 21112 from a telephone in the university telephone system.

Day of week                          Begin              End (potentially next day)

Monday-Thursday                    18:00               07:30

Friday                                     18:00               00:00

Saturday                                 00:00               00:00

Sunday                                   00:00               07:30