I've read this three times now, and still can't work out the context. Am I right in understanding he's talking about GSM mobile/cellular networks?
For the unaware, ISM = Industrial, Scientific and Medical. These are the shared unlicensed frequencies that the general public may use. Wifi falls inside of this range.
http://www.npr.org/2011/12/09/143442365/mexico-busts-drug-ca...
(Just in case this wasn't a typo and you're not a native speaker, rouge is red - in french-, rogue is probably the word you want :)