Here is the article i use to ban nodes.. etc.. 

I guess I should ask what bothers you about stations connecting listening then disconnecting.. Personally in rpt.conf i use telemdefault=2 so i don't even know when some one connects on purpose.. Only when they throw out their call then I generally try to respond if i can in a timely manner but.. Some times for what ever reason the individual on the other end may not hear me and disconnects.. Echolink has all types of issues just because of the way its designed an example of issues is having to use proxies on your phones in order to get a guaranteed connection in my mind their is no reason that multiple nodes couldn't use the same ip but for some reason echo-link was not designed this way.. I guess what i am trying to say is I ban only those who create havoc on my systems rather than trying to sort out a large permit strand.. 

Example of a ban would have been the station from the Philippines that for some reason didn't know how to use their call sign nor did they understand how to speak it in English.. I don't mind talking to people in other countries but they at least have to attempted to speak English and speak their call-sign at least in English Its just one of those things when you deal with echo link..