... 802.11b/g WIFI network (optional)> 3G (WCDMA/CDMA2000/TD-SCDMA) optional KD-DS101CTWired,1 channel, CIFKD-DS101CT-WWireless,1 ... Network:EVDO( CDMA2000),WCDMAKD-DS102DTWired,2channel, D1KD-DS102DT-WWireless,2 channel, D1KD-DS102DT-3G2 channel, D1, support 3G Network ... p, impedance: 75Ω,Audio CompressionG.726, G711, ADPCMAudio Input1/2/4 channel, RCA port, liner input, Impedance:1KOhmsAudio Output1channel ...