SBC Cheatsheet:
Denial of Service (DoS)

A Denial of Service (DoS) attack is when there is concentrated effort to ‘flood’ an available application, transport or connection with overwhelming traffic in an attempt to slow down or disrupt an available service. In the context of Voice over Internet Protocol, a DoS attack is focused on the telecommunication services, attempting to slow down, disrupt or even outright stop VoIP from occurring.