Hello,
as far as I know the Rolleiflex T cannot take the 220 film. But it can make 4 1/2 x 6 cm pictures with the additional "Maskensatz 16". This consists of a frame for the film window which automatically shifts the advancing gear to 16exposures instead of 12 and a frame for the focusing screen and for the sport viewfinder. With this mask set you can also shoot 4 x 4 cm "super-slides". Some late models of the 3,5 F and 2,8 F could take 220 film as the Yashica Mat 124.