NTT's global cloud services show what software-based networks can do

Stephen Lawson

The company also claims its new agility lets it free enterprises from long-term contracts for services, a benefit that NTT Communications itself admitted probably won't be used too often. Because the add-on services can be activated and shut down almost instantly, enterprises will be able to contract for them daily instead of for years at a time, NTT says. In reality, most enterprises run a firewall or a VPN for very long periods at any given location, but long-term lock-in has turned many customers against their carriers, Virtela's Goel said.

"CIOs are going to like the flexibility, but if they like the service, they're probably never going to leave you," Goel said.

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