Realization of the Technical Method of Police Subscriber Virtual Private Networks Via Public Networks
Jinli Qu · Tianjin Communications Technology · 2003
The paper introduced the virtual private network that made up among the subscriber's exchanges in Beichen Public Security Bureau,Tianjin Public Security Bureau and other districts'Public Secu rity Bureaus via public switching network that was done by Tianjin Communication Corp.Beichen Branch.It also pre sents to realize interworking by dialedsmall number,technical scheme of no charge in public network and or-ganization network fashions.