Session Initiation Protocol (SIP) trunking in the local market is being associated with various fraudulent activities, and as a company committed to not only transparency, but ensuring that its customers and local market understand the dynamics of the industry and its associated services, MTN Business is on an education drive to demystify this association.
Says Justin Colyn, General Manager for FMC at MTN Business: “Certainly fraud is occurring, but what is important to note is that the fraudulent activity is directly associated with the PABX equipment that an organisation may be using, and not through SIP trunking per se. In fact, PABX fraud often occurs when an organisation's PABX system has been breached or compromised and is not effectively configured and controlled, allowing access codes to be abused or used by unauthorised personal.”
Statistics indicate that PBX fraud is on the rise and growing in volume and sophistication. Estimates*of the annual losses from PBX fraud worldwide now range from $35 million-$40 million. Often the cost to company associated with this type of fraud directly relates back to lengthy or international calls being made on the PABX system - ones that are being charged back to the organisation, and in most cases, are not picked up by the business.
“MTN Business certainly monitors our network of international call traffic and ensure that we alert our customers accordingly to any abnormal traffic load that could be due to potential PABX fraud,” continues Colyn. “However, ultimately it is the responsibility of the organisation to monitor such potential security flaws in their PABX.”
To determine if your organisation is an unfortunate end-user of such PABX fraud, MTN Business recommends that you access the detailed records of the calls being made via your PABX systems and work closely with your PABX vendor in monitoring international call patterns.
These records will indicate the calls that should not be taking place on your existing PABX. Additionally, ensuring that your PABX is completely secure requires you to work with your vendor to configure and secure your PABX system, making sure that no gaps or bridges exist.
Furthermore, it is always advisable to put international call limits in place in this regard, as the international calls are the ones that can create the largest risk for the business in terms of costs, as they are the most expensive.
Considering the change the market is experiencing, it is crucial for telecommunication providers to be transparent and provide customers with insight into the type of technology that will provide them with a longer business retention cycle, as well as the possible risks and what to look out for.
“The fact is that high-maintenance costs, fixed infrastructure restrictions, coupled with utilisation and inflexibility concerns and now, security fraud, have fast eroded the benefits of the PABX - a traditionally purposeful product. As we aggressively move towards mobile convergence and cloud applications, it becomes clear that the 'traditional' PABX no longer delivers the value and security required for growing businesses,” concludes Colyn.
* SecureLogix Corporation
MTN Business
As a leading telecommunications provider operating one of Africa's most technically innovative, reliable and secure virtual private networks (VPN), MTN Business is able to offer world-class mobile telecommunications, Internet solutions and next-generation communication services.
We are aware that businesses and government constantly require a 360-degree communications service and therefore, have ensured that we are perfectly positioned to meet our customer's needs to reduce costs, improve connectivity and security and ultimately partner with a reliable and knowledgeable converged communications partner.
For more information, please visit www.mtnbusiness.co.za.

