VoIP security best practices

VoIP is subject to the rules of the Internet. It has its strengths and its weaknesses. However, ensuring VoIP security doesn't

    Requires Free Membership to View

have to be the daunting task that one might expect. Here are four basic steps for ensuring that your customer's VoIP network is secure.


Secure VoIP in simple steps

VoIP security resources for resellers
Get more tips and best practices in our VoIP Security Learning Guide

Securing VoIP doesn't have to be a challenge for systems integrators and their customers. Because VoIP is basically a phone call over the Internet, it offers the same strengths and weaknesses as the Internet. But it's not as scary as it seems. Most of the tuning required to secure VoIP involves the same efforts as hardening Internet and Web connections your customer's network probably already has in place. And most of that work can be handled by the system integrator or VAR.

Here are four suggestions for protecting your customer's VoIP network:

  1. Run all VoIP traffic through a separate Internet connection, separating voice and data into their own network segments.
  2. Avoid cheap systems, rather partner up with more established vendors.
  3. Encrypt any VoIP traffic to ensure confidentiality.
  4. Place VoIP servers in a secure physical location.

Find a more complete list, including more best practices for ensuring VoIP security.

About the author
Joel Dubin, CISSP, is an independent computer security consultant in Chicago. He is a Microsoft MVP in security, specializing in Web and application security, and the author of
The Little Black Book of Computer Security available from Amazon. You can visit his blog, The IT Security Guy, at www.theitsecurityguy.com.


This was first published in March 2007

There are Comments. Add yours.

TIP: Want to include a code block in your comment? Use <pre> or <code> tags around the desired text. Ex: <code>insert code</code>

REGISTER or login:

Forgot Password?
By submitting you agree to receive email from TechTarget and its partners. If you reside outside of the United States, you consent to having your personal data transferred to and processed in the United States. Privacy
Sort by: OldestNewest

Forgot Password?

No problem! Submit your e-mail address below. We'll send you an email containing your password.

Your password has been sent to:

Disclaimer: Our Tips Exchange is a forum for you to share technical advice and expertise with your peers and to learn from other enterprise IT professionals. TechTarget provides the infrastructure to facilitate this sharing of information. However, we cannot guarantee the accuracy or validity of the material submitted. You agree that your use of the Ask The Expert services and your reliance on any questions, answers, information or other materials received through this Web site is at your own risk.