Cellusys Blog

Sonus and Cellusys Partner to Address SS7 Security Vulnerabilities Sonus and Cellusys Partner to Address SS7 Security Vulnerabilities Sonus and Cellusys Partner to Address SS7 Security Vulnerabilities
June 27, 2016

Sonus and Cellusys Partner to Address SS7 Security Vulnerabilities

We are glad to announce Cellusys partnership with Sonus Networks to provide mobile and fixed network operators with a multi-layer Signalling System 7 (SS7) security solution. SS7 is a telecommunications standard that provides the signalling for network operators to set up and tear down calls, route Short Message Service (SMS) messages, support inter-network connectivity and… View Article
What is the difference between P2P SMS and A2P SMS? What is the difference between P2P SMS and A2P SMS? What is the difference between P2P SMS and A2P SMS?
June 20, 2016

What is the difference between P2P SMS and A2P SMS?

When an SMS message exchanges between two mobile subscribers (two SIM cards) we call it P2P SMS (Person-to-Person SMS) and when an SMS message sends from an application to a mobile subscriber we call it A2P SMS (Application-to-Person SMS). A2P communication is initiated from a business application (usually a web service), and not an individual… View Article
Cellusys at FASG #5 – Two years on, and networks are still not protected Cellusys at FASG #5 – Two years on, and networks are still not protected Cellusys at FASG #5 – Two years on, and networks are still not protected
May 28, 2016

Cellusys at FASG #5 – Two years on, and networks are still not protected

GSMA Fraud and Security Group meetings hold three times per year and the latest FASG #5 meeting was held in Malta on 24th – 26th May 2016. At FASG #5, Mobile Operators and Vendors shared their latest experiences about the risks that threatening mobile networks. Cellusys was involved in several workshops, meetings and presentations and… View Article
SS7 Vulnerabilities – Mobile Network Security in the mainstream News SS7 Vulnerabilities – Mobile Network Security in the mainstream News SS7 Vulnerabilities – Mobile Network Security in the mainstream News
May 12, 2016

SS7 Vulnerabilities – Mobile Network Security in the mainstream News

“I bumped into you in the hallway – I don’t know if you noticed that…? In that time, I pushed a credential across to your phone – which means my bluetooth is now trusted by your phone…” …the All Stars of DefCon – the conference of 20,000 hackers who meet each year to trade secrets –… View Article
Major security flaw in SS7 – how SMS Home Routing can plug the gap Major security flaw in SS7 – how SMS Home Routing can plug the gap Major security flaw in SS7 – how SMS Home Routing can plug the gap
April 25, 2016

Major security flaw in SS7 – how SMS Home Routing can plug the gap

With the current buzz regarding SS7 network vulnerabilities and the exploitation of standard SMS methodologies to obtain confidential subscriber information I thought it would be interesting to discuss the 3GPP document “TR 23.840, V7.1.0 (2007-03)”.  This document written in 2006 and published in 2007 describes a solution to SMS fraud commonly referred to as SMS… View Article
WAS #4 WAS #4 WAS #4
March 28, 2016

WAS #4

Dublin is home to Cellusys HQ and we are glad to welcome you to our home town. Meet us at the fourth event of GSMA Wholesale Agreements and Solutions Group (WAS) and take the opportunity to discover how Cellusys solutions can bring your network more profit: Roaming Management with pinpoint control – meet demanding steering… View Article
Subscriber Identity Disclosure: How an attacker can obtain IMSI of a subscriber? Subscriber Identity Disclosure: How an attacker can obtain IMSI of a subscriber? Subscriber Identity Disclosure: How an attacker can obtain IMSI of a subscriber?
March 19, 2016

Subscriber Identity Disclosure: How an attacker can obtain IMSI of a subscriber?

Since the “Subscriber Identity Disclosure” uses a portion of the Short Message Service (SMS) capability a brief explanation of SMS call flow is in order. When a subscriber sends an SMS Message it is transported over the air interface to the base station. The base station then sends the message to the serving Mobile Switching… View Article
Operator A2P SMS – it’s all about strategy (and some technology) Operator A2P SMS – it’s all about strategy (and some technology) Operator A2P SMS – it’s all about strategy (and some technology)
March 4, 2016

Operator A2P SMS – it’s all about strategy (and some technology)

Let’s get one fact straight, A2P SMS is by far the most preferred and efficient B2C communication tool used today. When I write this I mean THE VERY MOST EFFICIENT way of communication. So why is that? Here are some fundamental facts and please have WhatsApp, and their 1 billion subscribers, in mind when you… View Article
At WAS #3 – discover how Cellusys technology can bring your network more profit. At WAS #3 – discover how Cellusys technology can bring your network more profit. At WAS #3 – discover how Cellusys technology can bring your network more profit.
February 29, 2016

At WAS #3 – discover how Cellusys technology can bring your network more profit.

At WAS #3 – discover how Cellusys technology can bring your network more profit Roaming Management with pinpoint control – meet demanding steering targets and give your subscribers high quality experiences. Monetise A2P messaging with our next-generation SMS Firewall – and our world-beating strategies for mobile networks. SS7 & Diameter Signalling Firewall built off the… View Article
Mobile World Congress – where the Mobile Industry goes to do business, but doesn’t. Mobile World Congress – where the Mobile Industry goes to do business, but doesn’t. Mobile World Congress – where the Mobile Industry goes to do business, but doesn’t.
February 21, 2016

Mobile World Congress – where the Mobile Industry goes to do business, but doesn’t.

  It’s been 12 years since Cellusys started to go to 3GSM in Cannes. But it’s not 3GSM any more, it’s Mobile World Congress and it’s in Barcelona. That was when 25,000 people from the mobile industry, a lot of them, actual mobile operators, descended upon Cannes to work. It was bursting at the seams… View Article
Cellusys at Mobile World Congress 2016, Barcelona Cellusys at Mobile World Congress 2016, Barcelona Cellusys at Mobile World Congress 2016, Barcelona
February 17, 2016

Cellusys at Mobile World Congress 2016, Barcelona

Mobile World Congress is around the corner and next week in Barcelona the greatest event in Telecommunication industry will show you any thing about Mobile. Meet us in Barcelona and discover how Cellusys solutions can bring your network more profit: Give your subscribers high quality experiences with Cellusys Roaming Management. Monetise A2P messaging with Cellusys… View Article
Flavours of Roaming Steering; a comparisons of taste and texture between OTA, Signalling and Hybrid Steering Solutions Flavours of Roaming Steering; a comparisons of taste and texture between OTA, Signalling and Hybrid Steering Solutions Flavours of Roaming Steering; a comparisons of taste and texture between OTA, Signalling and Hybrid Steering Solutions
January 12, 2016

Flavours of Roaming Steering; a comparisons of taste and texture between OTA, Signalling and Hybrid Steering Solutions

During the many discussions I have had with different operators about Steering of Roaming, one issue which always comes up, and is a source some controversy, debate and confusion, is the different approaches used in Roam Steering solutions. The controversy revolves around which is 1) better, 2) more accurate and 3) most cost effective. In… View Article
Does Diameter solve signalling fraud? Does Diameter solve signalling fraud? Does Diameter solve signalling fraud?
January 5, 2016

Does Diameter solve signalling fraud?

SS7 signaling security is the current hot topic conversation on the web. This has been brought to the forefront of our attention by articles in the Washington Post and the presentations given by 2 German Researchers at the Hacker conference Chaos Communication Congress 31c3, December 2014, in Hamburg Germany. At this conference Tobias Engel and… View Article
Cellusys is Tier 1 Roaming Solutions provider – 2015 ROCCO research Cellusys is Tier 1 Roaming Solutions provider – 2015 ROCCO research Cellusys is Tier 1 Roaming Solutions provider – 2015 ROCCO research
December 22, 2015

Cellusys is Tier 1 Roaming Solutions provider – 2015 ROCCO research

ROCCO research: Cellusys are leading vendors for Steering of Roaming. Between September and December 2015 ROCCO asked Operators and Operator groups globally to give their perceptions of Steering of Roaming vendors, and to rate them on 30+ KPIs in the areas of Performance, Value, and Leadership. Cellusys has been selected as Tier One Vendor in… View Article
Steering of Roaming: Active Redirection vs Passive Tapping Steering of Roaming: Active Redirection vs Passive Tapping Steering of Roaming: Active Redirection vs Passive Tapping
December 10, 2015

Steering of Roaming: Active Redirection vs Passive Tapping

Steering systems are quickly becoming a de facto tool in a roaming departments toolkit. Without one, Operators are at a significant disadvantage when negotiating IOT discounts with their roaming partners and ensuring a high QoS for roamers. There are many factors to consider when evaluating roaming systems that mainly lie in the capabilities of the… View Article
Why is SS7 Steering needed in OTA Deployments? Why is SS7 Steering needed in OTA Deployments? Why is SS7 Steering needed in OTA Deployments?
December 2, 2015

Why is SS7 Steering needed in OTA Deployments?

For many years mobile operators have attempted to steer their subscribers to preferred roaming partners when they are roaming. The main reason for this is to try and fulfil targets set out in IOT agreements with their preferred roaming partners in order to maximise roaming revenues. Other reasons may include a better quality of service… View Article
9 steps how an operator will succeed with its A2P SMS strategy 9 steps how an operator will succeed with its A2P SMS strategy 9 steps how an operator will succeed with its A2P SMS strategy
November 26, 2015

9 steps how an operator will succeed with its A2P SMS strategy

The majority of unconsolidated and unbilled SMS comes from your roaming partners misusing their roaming agreements. It’s a fact and it’s also a sensitive subject as it can affect relations between operators negatively. In order to get in control roaming traffic it has to be monitored, yet 80% of the operators has no tools to… View Article
LTE Signalling Firewall Deployed to a Major European Network LTE Signalling Firewall Deployed to a Major European Network LTE Signalling Firewall Deployed to a Major European Network
November 18, 2015

LTE Signalling Firewall Deployed to a Major European Network

LTE North America, Dallas – November 18, 2015 – Cellusys, a global leader in Signalling-based technology today announced deployment of its LTE Signalling Firewall to a major European network, the first of its kind. The Cellusys Signalling Firewall is expected to protect over half a billion subscribers globally by the end of 2016. Cellusys has… View Article
Cellusys Showcase at 8th Annual LTE Americas Summit Cellusys Showcase at 8th Annual LTE Americas Summit Cellusys Showcase at 8th Annual LTE Americas Summit
November 16, 2015

Cellusys Showcase at 8th Annual LTE Americas Summit

Cellusys are exhibiting at the 8th Annual LTE North America summit in Dallas at the Intercontinental, stand 57, November 17-19. We will be showcasing our latest LTE Signalling Security, LTE Roaming and LTE Broadband Analytics. It is the industry’s meeting point to discuss the present and future of cellular networks in the region. Featuring keynote… View Article
8 SS7 vulnerabilities you need to know about 8 SS7 vulnerabilities you need to know about 8 SS7 vulnerabilities you need to know about
October 20, 2015

8 SS7 vulnerabilities you need to know about

Wow, SS7 has been in the network controlling wire-line and wireless calls since the mid 1980s and now we are talking about its vulnerabilities. A lot of people think we should only be focused of the evolution to LTE/EPC Diameter based networks however; the legacy SS7 protocol based networks serve the vast majority of wireless… View Article