Global losses attributable to telecoms fraud are estimated at US$29.2bn annually and the UK is the third most prevalent country for the origination of fraudulent calls according to the CFCA 2017 Global Fraud Loss Survey. With no need for MSP to provide on-site engineering support, new services can be downloaded and configured within minutes. With this software-based SBCs can now also be deployed as a Virtual Network Function (VNF) based Session Border Controller (SBC)”]
Source: https://informationsecuritybuzz.com/articles/session-border-controller-virtual-network-function/