The article states that the services used to relay data links were common wi-fi and ordinary cellular telephone service.
The first thing that usually happens in a war zone is HAM radio service experiences disruption. [0] Cell phone back doors via CALEA [1] are already used to disrupt would-be suicide bombers around the world, and yes even in the United States. [2]
If push comes to shove, we'll all lose wi-fi and cell phones in an area of effect, around any hostile activity, whenever shit gets real.
[0] http://www.latimes.com/world/la-fg-radio14jan14-story.html
[1] https://en.wikipedia.org/wiki/Communications_Assistance_for_...
[2] http://codegreenprep.com/2013/04/boston-bombing-shows-you-ca...