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Durham University

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Telephony system upgrade

(26 June 2020)

CIS is upgrading the University telephones on Friday 3 July and Saturday 4 July, and during this time there will be some disruption to service. The upgrade will begin at 6pm on Friday 3 July and will require all telephone handsets to reboot to receive the upgraded configuration. The reboot will be done remotely by CIS, and you are not required to do anything.

The handsets will reboot in batches of 500 and sequenced in extension order so handsets in the same office or college may reboot at different times. The reboot of a handset takes approximately 10 minutes to complete.

If your service area operates a telephone service out of hours and you have not been contacted directly by CIS, then please email

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