The Brazilian mobile operator has selected Xtera to upgrade its infrastructure linking Manaus, Porto Velho and Cuiabá.
The move forms part of a wider network upgrade in the North Region of Brazil, which will also see a second route deployed to the Amazonian city of Manaus.
TIM plans to add a total of more than 2,600 km of high-capacity links into the region to support the high demand for bandwidth.
In late October, Mexico’s América Móvil, Spain’s Telefónica and Brazil’s Oi were rumoured to be considering a joint bid for TIM.