Network hardware companies continue to snap up technology they can use to make security a standard feature in the switches and routers that comprise the basic network plumbing inside businesses.
Stories by Phil Hochmuth and Tim Greene
IP telephony and voice over IP are by no means the standard for carrying enterprise voice just yet. But these technologies have been in the real world long enough for users to have learned some tricks for protecting a converged infrastructure against network threats, both external and internal from inside the firewall.
While firewalls are the IT pro's favorite security tool, they can be troublesome for companies trying to deploy IP telephony over the Internet as many firewalls offer little or no support for voice-over-IP protocols.