SIP trunking is not only inherently vulnerable but that vulnerability continues to change and escalate. Attacks on VoIP servers represented 67% of all attacks recorded against UK-based services according to Nettitude. 84% of UK businesses considered to be unsafe from hacking according to NEC. Paul German, CEO, VoipSec, considers the questions to ask to determine the truth about the SBC. Routine SBC updates in response to new threats and technology change are essential. Real time alerts via email, management alerting and texting should be essential.”]