"The joint Operators Olympic Group (JOOG) is also providing as much capacity as possible using external mobile base stations in the Olympic Park to support the number of visitors expected each day. The operators have built 30 sites across the Olympic Park, including 14 in-building solutions. At off-park venues, a further 17 temporary sites are being provided to add additional capacity," a spokesperson for Everything Everywhere said.
Meanwhile, O2 said that it has invested Â£50 million in London 2012, to increase capacity of the existing network and to build new, temporary sites across the country.
"On top of that, Wi-Fi will also play a huge role for those people who will want to use data services at the Games, including Facebook and Twitter," O2's chief operating officer Derek McManus said in a blog last year.
O2 announced plans to install free Wi-Fi access across areas of London in time for the Olympics earlier this year.
The Wi-Fi service will be a welcome back-up source for users if O2's network were to suffer another failure, following the operator's network outage earlier this month, which prevented customers from sending or receiving calls or data for around 24 hours.