You're right to be concerned about VOIP security, but worrying about VOIP security within your own network shouldn't be too high on your list. This is because most computer networks today are switched networks that run all communications through a router, which assembles Internet packets and sends them to a specific destination. So for someone to compromise your internal VOIP security, that person needs access to the router itself. And if that's a concerns, you have bigger worries than VOIP security.
|Jennifer Mathes, Ph.D.|