AT&T has filed suit in US District Court alleging that One Stop Financial Corp of Little Falls, New Jersey had deceived long-distance telecommunications customers: the suit alleges One Stop intentionally created the mistaken impression it is affiliated with AT&T, made unauthorized use of AT&T’s trademarks and service marks, and slammed customers, by advising AT&T that an AT&T customer wished to switch to One Stop, when the customer had not authorized the change; this is the first time AT&T has filed this kind of a suit against a reseller.