jvs-hi3516cs

Hi all. I have a Jovision clone cam based on 3516C SoC + OV2710. I'd like to telnet with it but the service doesn't run at all (no 23 port, according to nmap scan). I've started a cgi query from a browser and I've found: http://x.x.x.x/cgi-bin/jvsweb.cgi?cmd=webhelp cmd list and help...