... -alone Linux2.6 operation system Graphics & Windows OSD interface Support D1(for 4CH only), HD1 and CIF recording ... audio compressionSupport triplex operation: record, playback, net transmissionSupport remote view with Mobile PhoneSupport to backup & upgrade with USB ... Client, IE Brower, Mobile, CMSREMOTE OPERATIONRemote view,remote playback,remote setupNETWORK SERVICETCP/IP,UDP,HTTP,DDNS,SMTP(SSL)LAN ...