VoIP Firewall
Spam commonly proliferates using STMP and HTTP protocols, which are critical to e-mail and the Internet, but it could soon become the nemesis of SIP (Session Initiation Protocol) as well. Hence, new technologies like SIP firewalls are emerging to address the protocol’s distinct security requirements. Just as IT security managers rely on firewalls to secure the perimeter of the data network, telephony managers can use a VoIP firewall to their advantage. A VoIP firewall is an application driven by a security policy defining whether to allow or deny certain calls. It manages and protects the traffic, flow and quality of VoIP and other SIP-related communications.
BorderWare’s recently released hardware and software SIP-based firewall, SIPassure, authenticates user connections and allows system administrators to set and enforce VoIP security policies to address application layer exploits. BorderWare claims to protect users against Denial-of-Service (DoS) and Distributed Denial-of-Service (DDoS) attacks that can eat up large amounts of bandwidth in a VoIP network. There’s also security against eavesdropping and “man-in-the-middle” attacks that allows hackers to become part of a VoIP call without the communicating parties knowing someone is listening. The software also offers protection from Call Redirection, which enables a hacker to automatically call-forward a connection to their system as well as providing protection against Malicious Calling, VBombing and VoIP Spam, which are attacks that flood the receiver with hundreds of false voice mails within seconds. Finally, SIPassure also claims to keep users safe Fake Caller ID, in which a hacker can masquerade as a trusted person making legitimate voice calls to an unsuspecting patron.
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