VoIP: Voice over IP: security pitfalls

Voice over IP (VoIP) is being embraced at a rapid rate. But for a business the decision to implement is complicated. The verdict needs to take into account network capacity, possible equipment upgrades and staffing and training costs. VoIP opens a company up to many security risks such as loss of service, DoS and compromise and eavesdropping among other risks. VoIP is being taken up at a significant rate. Most visibly, VoIP eliminates the notion of a long-distance call. Any service on an IP network faces the usual IP risks. VoIP opens telephony up to a different, cheaper avenue of attack, essentially expanding the perimeter.