Securing VoIP by (Bud) Bates Regis J. Jr

Author:(Bud) Bates, Regis J. Jr [(Bud) Bates, Regis J.]
Language: eng
Format: epub
ISBN: 9780124171220
Publisher: Elsevier Science
Published: 2015-08-15T00:00:00+00:00

Use a VoIP-enabled firewall

A firewall is a device or a program that establishes a shield between your computer or network and the sources of security threats (i.e., hackers, malware, and viruses). This shield filters and inspects data going in and out of the network. If a network is controlled by a central server, firewall software can be installed on that server, thus protecting all machines and devices on that network. Firewalls can also be embedded into hardware. For example, routers may have firewalls built-in to filter VoIP packets in and out of your VoIP network. See Figure 5.4 for the firewall configuration in a corporate and telecommuter environment.

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