A customer inspects an iPhone 5 smartphone inside a Portugal Telecom SGPS SA mobile communications store in Lisbon, Portugal, on Wednesday, Oct. 2, 2013. Portugal Telecom SGPS SA, the country's biggest phone company, agreed to merge with Brazilian affiliate Oi SA, creating a carrier with almost $17 billion in sales and 100 million customers to bulk up in Latin America. Photographer: Mario Proenca/Bloomberg