Brazil's Oi in talks to sell mobile unit to Telecom Italia, Telefonica -sources
By Carolina Mandl and Gabriela MelloSAO PAULO, Sept 19 (Reuters) - Brazilian telecommunications firm Oi SA is in talks with Spain's Telefonica SA and...
By Carolina Mandl and Gabriela MelloSAO PAULO, Sept 19 (Reuters) - Brazilian telecommunications firm Oi SA is in talks with Spain's Telefonica SA and...