  We present here the status of the medium size prototype for the Cherenkov
Telescope Array. The main reasons to build the prototype are the test of the
steel structure, the training of various mounting operations, the test of the
drive system and the test of the safety system. The essential difference
between the medium size telescope prototype and a fully instrumented are that
the camera is not instrumented and only a part of the mounted mirrors are
optical mirrors. Insofar no high energy gamma rays can be detected by the
prototype telescope. The prototype will be setup in autumn 2012 in Berlin.
