How to keep people from listening to your VoIP calls

By Sheila Shanker
Updated: August 11, 2011

Are you concerned that your VoIP phone connections are not secure? You may be surprised to learn that it’s quite easy to eavesdrop on these types of conversations. Someone with the right equipment and some technical knowledge about VoIP technology can tap into your phone calls easily. However, there are ways you can protect yourself against these potential eavesdroppers—the key is: ENCRYPTION. Below are some ideas:

Internal Encription – Check with your VoIP provider if this feature is available with your service. Skype has included this function in its software, and you’re likely to have this security function well.

Zfone – This option works very well if all callers and receivers have this encryption software. Phil Zimmermann, the developer of “Pretty Good Privacy,” the most-used email encryption software, also created this program that promises to be a good tool in avoiding eavesdropping.

IP Security and Transport Layer Security – These programs are quite difficult, if not impossible to be manipulated by anybody external to the communication process. Both systems encrypt information with the Transport Layer Security working between two applications, and the IP security handling both devices and applications encryption.

Secure Real-Time Transfer Protocol (SRTP) – The main features of this software are: it uses a unique encryption key for each call, and it has a minimal effect on call quality. It’s highly recommended for day-to-day and very confidential phone calls.

Virtual Private Network (VPN) – When available, this service can be used to secure gateway-to-gateway conversations; however, if you call outside your LAN, you need more security.

Featured Research
  • How UC Can Help Your Business Survive the Holidays

    The holiday season is filled with frenzy and excitement for businesses and consumers alike. Consumers prepare gift lists, compare brands and prices, and begin shopping with a vigor that is not present most other times of the year. For many businesses, the holiday season accounts for a large profit bump at the end of each year, and companies strive to exceed their goals and keep customers happy during this rush late in the year. more

  • [Infographic] Switching Phone Systems

    There are a lot of possible reasons you might want to switch to a new phone system. The old one might cost too much or be too troublesome to operate and maintain. It might not be flexible enough. It might not be reliable enough. Or it just might not have the kinds of features and capabilities that you need in today’s competitive business climate. more

  • Business VoIP on a Budget

    Voice over Internet Protocol (VoIP) phone systems represent the next innovation of telephone connection and communication by making it possible to conduct calls over a broadband internet connection, rather than an analog phone line. more

  • [Infographic] The Advantages of Unified Communications

    Did you know that according to 8x8, the tangible ROI of a unified communications solution for a 10,000-person enterprise is approximately $15.5 million? This isn't the only way unified communications can improve your business. more

  • The New 2016 Phone Systems Comparison Chart

    Check out our latest Q4 Phone Systems Comparison Chart complete with new vendors, products, and features! Our free chart compares over 40 business phone solution providers, including PBX and business VoIP systems, on over 20 performance metrics. more

Related Articles