Akbal Singh Karlcut is a Principal Software Engineer at SonicWALL responsible for a number of areas, such as VoIP and other stateful protocols. He has worked on several papers for the IEEE as well as patents in the area of data communications. Akbal received his B.Sc. in Computer Science from Kingston University (United Kingdom) and M.Sc. in Computer Engineering from San Jose State University.
Companies implementing Voice-over-IP (VoIP) technologies to cut
communications costs shouldn't overlook the security risks associated with a
converged voice and data network. Tempted by the thought of lower phone
bills, centralized management and rapid deployment, VoIP security and network
integrity are often neglected. There are numerous weak points to consider in
a VoIP network - the call servers and their operating systems, the phones and
their software, even phone calls themselves are vulnerable.
This article examines the issues and complexities of deploying a secure
Voice- and Video-over-IP network, and how a VoIP-capable firewall can address
these concerns.
Evolution of the Firewall in a VoIP Network The traditional role of a
firewall in a VoIP network is undergoing a radical evolution.
In the past, its primary job was simply to "behave well." VoIP relies on the... (more)
Akbal Singh Karlcut is a Principal Software Engineer at SonicWALL responsible for a number of areas, such as VoIP and other stateful protocols. He has worked on several papers for the IEEE as well as patents in the area of data communications. Akbal received his B.Sc. in Computer Science from Kingston University (United Kingdom) and M.Sc. in Computer Engineering from San Jose State University.
Scott Sellers
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