This isn't necessarily about access to the calls themselves. It could be about being about to retrieve network configuration information, call history, maintena

This isn't necessarily about access to the calls themselves. It could be about being about to retrieve network configuration information, call history, maintenance logs, and being able to alter the configuration of the network. The article isn't specific enough. In other words, do they just want to intercept calls, or steal customer information, or crash the network?