As this is an international forum, other languages than english are not very welcome… 
I’m sorry, I do not know the Acti cameras. But I do know that I hadn’t to enter any kind of CGI commands in the CAM setup! The CGI commands have to be entered in an OH script or rule.
Here is an example for my INSTAR camera to activate the alarm monitoring (done in a rule):
sendHttpGetRequest("http://USER:PW@IP/param.cgi?cmd=setmdattr&-name=2&-enable=0&-s=20&-x=70&-y=303&-w=96&-h=294")
Cheers,
Stefan