Oi and Vivo consider returning concession if regime change is not worth it
Teles Oi and Vivo, the largest fixed telephony providers in Brazil, work with the possibility of ...
Tag: Vivo
Oi, Claro and Vivo fine of BRL 782 million for infringement at the Post Office
The Administrative Council for Economic Defense (Cade) sentenced Claro, Oi and Vivo to R$ 782 million ...
