TONNET DCS 1200 program-controlled switches 
 Maximum capacity: 1,272 doors (mining free slot design) 
 Outside the maximum number of gates: 360 
 Inside the maximum number of gates: 1,272 doors 
 Adopt modular design, a single set can be expanded to 8 groups of flexible cabinet 
 Network architecture adopted by Council can be multiple sets of remote link 
 Optional upgrade to dual-redundant set of CPU 
 Optional upgrade to dual sets of power redundancy 
 Simulation of single signal can be transmitted at least 5KM inside 
 Analog single insider with Caller ID 
 Amplified ISDN E1 PRI trunk interface outside 
 With ARS / LCR routing