Digital Video Server 1:There is the same network feature as ip camera. 2:channel, CIF 3:channel, D1 Digital Video Server1 Video Resolution: D1/Half-D1/CIF ... -WWireless,4channel, D1KD-DS204DX-3G4 channel, D1, support 3G Network:EVDO( CDMA2000),WCDMAVideo Input 1/2/4 channel composite video, PAL or NTSC, BNC ...