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Reporting a Telephone Fault (Cisco)

Reporting a Telephone Fault (Cisco)

 Detailinformation

Where should telephone malfunctions involving Cisco phones be reported?

 

What information is needed to resolve the malfunction as quickly as possible?

  • 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

In urgent cases, the on-call service can only be reached during on-call hours via the service number 21112 from a telephone connected to the university telephone system.

last changed on 01/21/2026

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