"That's the flexibility that operators are looking for," Sharma said. Carriers also need more flexibility just to keep up with increasing traffic and data demands, he said.
NSN says it's not yet ready to have the OSS run on a cloud because that infrastructure, even a private cloud, might not meet performance requirements. Getting to that next stage will require a lot of testing, Rygaard said.
Virtualization can cut down on capital expenses, make carriers more flexible and help them automate more operations, freeing up resources that can be focused on optimizing the subscriber experience, Rygaard said.