Circuit & Packet Switching

Portugal Telecom seals $5 billion Oi deal

Marks PT's return to business in Brazil

Portugal Telecom (Lisbon, Portugal) said today it had signed the necessary contracts to seal the purchase of a 22.38 percent direct and indirect stake in Brazil's main fixed-line phone carrier Oi (Rio de Janeiro) for 8.32 billion reais ($4.98 billion). The deal, drafted last July, effectively means the return of Portugal Telecom as a major player to fast-growing Brazil after it sold its stake in Brazil's top mobile firm Vivo to Spain's Telefonica for 7.5 billion euros last year.

Cisco introduces 'Carrier Packet Transport System'

Foundation for next generation data transport

Cisco Systems (San Jose, CA, USA) today announced a solution designed for migrating service provider transport infrastructures to support next-generation IP-based services, called Carrier Packet Transport (CPT). The company claims this solution combines the reliability of the transport network with efficiencies of packet technology to deliver current and future services.

Advanced Mobile Services Need More Powerful Processing in the Network

When capacity scales up, so must the back end

As mobile usage in the developed countries moves rapidly from voice to applications, the level of call processing in the network must increase correspondingly. Applications such as video and navigation require hundreds of times more data than voice, and the network’s processing capabilities must be upgraded to handle it. Yet choices now being made about 4G infrastructures will significantly impact operators’ ability to scale processing power as needed.

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