Compared with the conven-tional dedicated lines such as leasing DDN and FR,establishing secure Vir-tual Private Dialing Network(VPDN)over Internet or other public networks can save a lot of communications fees and management costs for the enter-prises.
Study of VPDN Technology Based on L2TP and Applications to BRAS;
VPDN Network Technology in the Application of Birth Control;
Research on cdma 1x-VPDN Access Plan
Two VPDN Network Construction Solutions of Enterprise Information;
與傳統的租借DDN和FR等專用線路相比,在Internet或者其他的公用網之上建立安全的虛擬撥號網絡(VPDN),可以為企業節省大量的通信費用和管理費用。
The Research and Implement on CDMA 1X VPDN of Jiangxi Branch of China Unicom Ltd.;