(Telecompaper) French consumer association UFC-Que Choisir has published a report demonstrating the wide divergence between mobile operators' marketing messages about LTE speeds and the real throughput experienced by customers. Calling the difference "an intolerable discrepancy", UFC writes that a testing programme it commissioned covering 80 percent of Paris streets found that Orange France's 4G service is available in 79.3 percent of the city, with part of the southwest unserved. As for SFR, the operator covers under 75 percent of the capital, leaving many pockets without 4G service. Bouygues Telecom tested better, with 99.4 percent coverage. As the three incumbent MNOs used Paris as a showcase for their national LTE rollout, UFC expects coverage to not be as good in other cities of France. Based on its findings, UFC has taken legal action against Orange France and SFR, accusing them both of misleading advertising. It has also called on telecom regulator ARCEP to set up a 4G Observatory to monitor the LTE rollout in real time and to vouch for operators' coverage and speed claims.