Fraud Detection Technique in VoIP termination

VoIP fraud is a major concern in the present days. A single fraud event can easily cost a company between three and fifty thousand dollars or even more. According to the CFCA report, phone fraud is growing at a rate of 29% per year. As the popularity of VoIP continues to grow, the problem of VoIP fraud will become an increasing threat to the industry.

Different Types of VoIP Frauds

Fraudsters can attack a VoIP network various ways. Some of the techniques are stolen from the traditional phone fraud tactics, others from computer hacking techniques, and others exploit VoIP specific equipment and software.

Arbitrage, buffer overflow, bypass fraud, call transfer fraud, PBX hacking, subscription fraud are just a few names in the list of VoIP fraudulent activities.

VoIP Fraud Detection Techniques

Today, most fraudsters attack the underlying and supporting infrastructure. The major IP PBX vendors can be secured, but security has to be considered during the network deployment. It’s important to consider your existing network security before adding VoIP components.

Call detail record Analysis

Analyzing Call Detail Records is the most simple way to check fraud activity on the network. VoIP providers should put into place a system that detects the most common symptoms of fraud and PBX hacking, traffic spikes, unusual call patterns, etc. This type of system should be real-time to get the best result. In addition, a system should be there to monitor the analysis periodically and the system should alert on suspicious activity or even temporarily block the suspicious routings.

Limiting Routes

VoIP service provider should avoid all its customers the access of all the routes. High price and fraud areas should be limited to customers and access to those areas should only be given if the service is necessary to the clients.

Session Border Controllers

Session Border Controllers, which work in front of an IP connected PBX can be a deterrent to fraud. The SBC can detect and stop attempts to guess user credentials or unauthorized attempts to route traffic. Some SBCs can analyze call patterns and dynamically learn your normal traffic patterns, sending warnings when something deviates from the norm. Session Border Controller cannot, however, detect Traffic Pumping attacks.

Denovo Labs Service for VoIP Fraud Detection

At Denovo Labs, our primary concern is to provide a well secure VoIP routing solution. Our high CPS switch is capable of blocking off fraudulent calls that are meant to disable your switch with high volume. DNL switches also allow auto blocking and the user setup maximum call minute and usage amount by hour or day. On any suspicious activity, our system will send out alert or block the client.

Our system also prevents unauthorized login to your portal by controlling the IPs allowed for each user. The admin user can even set up different roles with different read/write access for each menu.

So if you want to have a VoIP service which has a secure infrastructure and also provide real-time fraudulent activity detection, then you should definitely check the VoIP services we are providing at DNL.

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