
Solving a potential major industry pain that is costing 3G and GSM mobile operators millions of dollars each year is what a new company called Revector is focusing on according to its founder Andy Gent.
The light side of Voice over IP (VoIP) services are they have brought real competition to the rather staid telephony business. VoIP has destroyed the old and rather lucrative way of charging for a telephone based on distance, so that these days all charges are pretty much based on flat rates.
What has enabled this is the ability to use IP data networks – whether they be the private IP networks of carriers or the public Internet – to bypass the highly structured commercial settlement regimes of the old Plain Old Telephony Services (POTS) telephone monopolies. You only need to look at what AT&T is up to as described in Are voice (profits) history? to see VoIP’s impact.
Even carriers themselves did this. If international voice traffic could be buried or hidden in IP connections, it was possible to significantly reduce both transit costs and avoid settlement out-payments. The strategy of many carriers was to siphon-off traffic growth onto IP networks to cap regulated out-payments to other carriers. In parallel with this we saw the launch of hundreds of companies (see some here) launching VoIP services around the world to take benefit of the ease of setting up simple voice bypass services. Inevitably their raison d’etre was to offer extremely low international call charges.
Although these services are loved by the consumer, they are hated with a passion by fixed line and mobile carriers as they are seen to be ’siphoning off’ their revenues by exploiting differences in termination charges. Of course, many a consumer would say that this is a good thing as it has forced a highly resistant industry to accept change and that is what a disruptive technology is all about.

A graphic from Revector’s web site
As is shown in one of Revector’s graphics, there is a plethora of companies setting up grey services by deploying GSM gateway boxes or SIM boxes to act as interfaces between IP and GSM networks. A SIM box is a small ‘plug-in and work’ box that contains a mobile SIM card that is connected to a PBX or router. It can automatically reroute a call that would take place on a mobile network to a lower cost fixed or IP network.
SIM boxes are installed on mobile or fixed operators’ networks without the permission of those operators (hence my use of the term grey services) and are used to terminate low cost IP based voice services without the local carriers knowledge. Instead of a SIM card being associated with a single subscriber, it acts as an egress pipe for multiple subscriber calls pouring in from other countries.
This is where Revector comes in. It offers a mixture of technology and analysis that can help local operators detect this grey area loss of revenue. They have deployed robots in a number of countries that are able to detect a SIM card that is being used for nefarious purposes in real time. Once detected , the local operator can terminate the SIM card contract accordingly. Revector augments automatic detection by robots with a thorough analysis of carriers’ call records to detect bypass-route call patterns that could indicate SIM box use.
According to Revector, “global losses due to telecom fraud have reached $35-$40 billion annually and fraud rates are growing between 11% and 25% annually against a rate of between 3% and 8% for the telecoms industry itself.“
In many ways, this activity is pretty much unstoppable as it so common and so easy for a terminated service to restart by just buying another SIM card. However, this fact could prove to a real boon to Revector as its source of revenue never, ever, goes away!
Addendum: Companies who offer SIM box detection services are:
Addendum #1: Chaos in Bangladesh’s ‘lllegal’ VoIP businesses
Addendum #2: the-crime-of-voice-over-ip-telephony in India/
Link: GSM Gateways: The Quiet Crime
March 5, 2007 at 10:47 am |
The mobile operators in the UK have for sometime monitored the acivities of VoIP to mobile gateways and have either tolerated them or shut them down. In some cases shut down has occured due to the concentration of a gateway providor of too many connections in a single cell, causing a service dgradation for other users. Gateway providers have used a variety of different carrier SIMS to remove this problem. One supplier to gateway services has provided the capability to interrogate the GSM Home Location Register to determine which network the called mobile is on, and route the call using a gateway with that carrier SIM installed. This provides a solution to number porting which removes the capability to recognise the network from the number block. The service is charged on a per interrogation basis, but allows full use of bundled minutes tariffs. Another method has been to provide the gateway service at a fixed monthly service charge, and have the customer purchase the SIMs and pay call charges directly, so creating a distributed pattern in the carriers billing information.
The dilemma for carriers is that it does drive voice traffic to the mobile network, and the services are used by precious business customers. It is also an industry that is quick to exploit any loopholes, and has managed to survive for sometime already.
March 5, 2007 at 17:34 pm |
A while ago a belgian company developed a solution for the carrier , so that they could deal with sim -boxes http://www.meucci-solutions.com/
March 5, 2007 at 17:43 pm |
Thanks Johan, I’ve never heard of them before…
April 11, 2007 at 9:25 am |
[...] talked about the Sim Box issue in Revector, detecting the dark side of VoIP, and the Bangladesh situation provides the reasoning about why incumbent carriers are often hell [...]
August 21, 2007 at 8:57 am |
Does any one know names of companies who sell call generators for sim box detection?
August 21, 2007 at 9:50 am |
Patrick,
Regarding call generators please email me andy@revector.com.
Regards
Andy
September 24, 2007 at 15:08 pm |
[...] In reality no individual really cares whether a call is being completed on a VoIP network or not as long as the quality is adequate. They certainly do care about cost of a call and this turned out to be one of the main drivers causing the rise of VoIP services as they are used to bypass the tradition financial settlement regimes that exist in the PSTN world (Revector, detecting the dark side of VoIP). [...]
October 13, 2007 at 2:00 am |
In the past (2002) I have had the opportunity to evaluate a similar system called Identitel, by an american company named TJT Associates, so this is nothing new. It worked pretty well and we were able to detect many cases. Unfortunately we never did anything about it for various reasons. Pretty much all large carriers use GSM Gateways to terminate some of their international traffic. They might not do it directly, but the wholesale carriers that handle international traffic to destinations worldwide will eventually terminate the calls through a small company that provides this kind of service. The margins in this market are very low, and even a tiny difference in wholesale rates can mean the difference between receiving no traffic or all the traffic.
October 13, 2008 at 8:17 am |
Does anyone have any references about Revector?
Is their solution actually working, and how good was in detecting bypass?