Novas stood in the dock wearing a black outfit and glasses, and Winkless appeared by video-link from HMP Swaleside in Kent.
The court heard that Novas, acting as a prison custody officer, “wilfully misconducted” herself “in a way which amounted to an abuse of the public’s trust”.
Winkless is alleged to have encouraged and assisted both offences.
Both defendants admitted making an unauthorised transmission of an image or sound from within a prison, conveying cannabis into HMP Five Wells, and conveying two mobile phones into the category C prison, near Wellingborough.
They also pleaded guilty to making an unauthorised electronic transmission of an image relating to HMP Peterborough between December 2024 and March this year.
Winkless, formerly of South Wigston, Leicestershire, admitted a seventh charge of possessing a device with a sim card at HMP Five Wells without authority on 22 December.