MAT(Motion Adaptive Transmission) is available in DirectIP mode.
Here is a list of IDIS cameras supporting MAT.

Dome Type
DC-D3233X: v1.2.0 or higher
DC-D3233WRX: v1.2.0 or higher
DC-D3233RX: v1.2.0 or higher
DC-D3233HRX: v1.2.0 or higher

DC-D3212X: v1.2.0 or higher
DC-D3212RX: v1.2.0 or higher

Bullet Type
DC-T3533HRX: v1.1.0 or higher
DC-T3243HRX: v1.2.0 or higher
DC-T3233HRX: v1.2.0 or higher

DC-T1833WHR: v1.2.0 or higher
DC-E3212WRX: v1.2.0 or higher

Box Type
DC-B3303X: v1.2.1 or higher
DC-B1803: v1.5.1 or higher

Other cameras with H.264 codec do not support MAT feature.