How to tackle fraud in a VoIP environment
Service providers have long recognised that Voice over Internet Protocol (VoIP) services can be exposed to a variety of potentially fraudulent situations.
There are some inherent vulnerabilities that hackers could exploit, namely three way calls and call transfers. In this case, hackers can inject call signals into the network and essentially hijack calls. This then leads to significant non-billable revenue for service providers.
The reason that these vulnerabilities occur is that it’s a relatively...