Consutant - Posh way of saying an RT radio from ops office to cock pit. Most handling agents have them as a required piece of kit (nothing fancy).
Aviation support handled X3, Flyglobspan, FlyWoosh and sky europe at bhx. The guy proved alot of people wrong by managing to start a handling agent at BHX however one day there was some kind of incident (the details I do not know) and the next day the airport allocated the contracts between the other three agents. The guy could talk the talk brilliantly but really struggled to do the walking bit, so I would advise caution.