RBS2216 is part of so called Flamingo, while whole Flamingo scope contains RBS2216, RBS2116 and BBS2216/2116.
RBS2216 can support more than 200 SCC, and only half size of the existing RBS2206.
DXU-31 and DRU are the main units. The main change actually is that RBS2216 does not have any backplane, so all cabling are in the front.
T-mobil was the FOA customer, which means TMO are using a lot of 2216 in field, while Turkeycell also have alot.