The Z-machine new parts are:
   (1) 8-way function of the phone hybrid board with the port can be accessed by AS-30 feature phone, and seven road Mandarin machine port can be accessed by ordinary telephones and have the caller ID function.

   (2) Z-type back-up switching power supply board to the original power supply board for the board back-up battery can be used after (24V) and be able to call it impulse.