 In November 1860 a telegraph line between Paris and Amiens was allotted to Caselli which enabled a true long-distance experiment, which was a complete success, with the signature of the composer Gioacchino Rossini as the image sent and received, over a distance of .The first "pantelegram" was sent from Lyons to Paris on 10 February 1862.The Corps législatif later ordered the installation of the pantelegraph on the railway line between the two cities, and from February 1863 the public was able to use it.