http://www.dx200.biz is my site and it is switched off cos my boss ask me to do it, it’s against Nokia policy, I’m working at Nokia. DX200 is a name of platform, it is an Operating System (OS) for all Nokia network elements, HLR/MSC/BSC/SGSN. There is lack of informtion for DX200 platform, the only source of information is Nokia On Line Service, NOLS, online.nokia.com.