Packnet Blog

IP telephony is an increasing trend as companies seek to minimise their costs whilst increasing revenues and improve the quality of service they provide to their customers. However, VoIP calls can be exposed to eavesdroppers, but this can be easily avoided with a few simple security measures.

Calls are able to be intercepted by those with the tech to analyze the data packets, but by encrypting any calls made, privacy can easily and effectively be retained.

There are different approaches which business can take to protect their calls from prying ears, with many options able to be installed with very little technical knowledge.

Many can simply be downloaded from the internet, often for free. These offer a very real and cost effective way forward for SMEs in particular but, there is a slight drawback. For the software to work, both callers need to have the application installed.

A more complete option is to incorporate encryption devices at source, and in this regard there are a number of approaches that can be taken.

IPsec (IP Security), automatically protects the device(s) making the VoIP call, and importantly, all applications which are being run on it. In a similar way TLS (Transport Layer Security), encrypts all data that is sent.

Another application, which provides transparent protection, is SRTP (Secure Real-Time Transfer Protocol). This creates a unique code for each call made, allowing individuals to have complete control of their privacy, making it ideal for upper management in particular.

For complete protection of business VoIP calls, all of the above could be delivered through a bespoke internal encryption application. The introduction of such software can be costly, and protracted, but will certainly deliver complete peace of mind.

To ensure complete privacy, many VoIP providers include complete encryption support with their hosted services. Providing the security required in the most cost effective way, such an approach allows total control and assurance, without a need to invest heavily.

Callum Byrnes