Although Gesko no longer manufacture their excellent range of ISDN PABX systems, we do still have some spares and handsets. Please call to see if we can help or for advice on a replacement system.
Current UK distributed firmware is 4.26. This is needed for the Ikarus 1200S telephones. Firmware can be downloaded from the Gesko Germany site at:
Alternatively, please call us on 01252 863720 to discuss upgrading now so that you can take full advantage of the latest enhancements in modern systems