3G 4 channel DVS network video server 1.International patent, the ... 4 channel H.264 DVS network video serveris the unique wireless high-definition video transmission equipment in China. base ... on 3G wireless network, transfer 4 Channel D1 full video in real time. Depending on ... D,Pelco-P)Front panel : LED, Keyboard, record, network, Emergency buttonBoard : WCDMA,CDMA 2000,TD-SCDMA 3G ...