... Skype message alarm, Skype telephone alarmsupport 3 different kinds of P/T rotate speed, two-way audioIP66 waterproof, support UPNP, ... Explorer 6.0 or higher version,Firefox,chromeSuper Client1,4,9,16,25,36, 64,81-channel , no user limited ... line at the same timeP/TControl Method1 way RS485ProtocolPELCO-D/PELCO-P agreement; Baud rate2400-9600 Address0-255AlarmAlarm DetectionSupport motion detecting ...