More than 135,000 mobile calls and over 1 million data sessions were recorded during the opening match of the World Cup between Brazil and Croatia at the Sao Paulo Arena, according to Brazilian telecoms association Sinditelebrasil. The association said the largest volume of data traffic in the Arena de Sao Paulo was over 3G, which suffered momentary congestion during traffic peaks. LTE or so-called 4G technology was also used, and represented 26 per cent of total data traffic. Altogether, 4,738 mobile antennas have been installed in arenas to allow fans to make calls, surf the internet and send multimedia messages with text and photos. Sinditelebrasil noted that service providers including Claro, Oi, Nextel, TIM and Vivo formed a single partnership for the infrastructure project, with investments of 226 million reals (€75 million/$101 million). Release