System firmware version: HwV380E12_WF3_PCARD_V50_20160217; By default this version has only port 8800 open. I followed the instructions by @grunwald and afterwards have ports 554, 8800 and 8899 open. Here is exactly what I did and what happened: Power the camera on; Remove SD card
System firmware Version: HwV380E12_WF3_PCARD_V50 20160217. Ports 23(Telnet) and 554(rtsp) were closed. Thanks to update posted by @sk8darr port 554 is open and RTSP is working and port 23 was open only til next reboot. If you apply the update again - Telnet port will open again til reboot. Unfortunately I could not login, so I modified the update to provide root shell on telnet Unzip and copy ...
Between each dawn and setting sun, set aside some time for fun.