SMS Firewall

Capture your fair share of revenue and retain customer loyalty

The global Application-to-Person (A2P) messaging market is growing rapidly. According to research house Ovum, the number of A2P messages sent is expected to reach 1.28 trillion by 2019. This growth is driven by a number of factors including rising global population, increasing use of smartphones, the growth of the mobile payments market and the use of SMS for marketing.

More and more companies and organisations are using SMS as a means to send one-time passwords (OTPs), two-factor authentication messages (2FA), transaction alerts, promotional marketing, and delivery confirmations. According to independent analysts MobileSquared, the Finance and Insurance sector was by far the largest single user of A2P SMS in 2017, accounting for some 15% of the total global volume – equivalent to 251.35 billion messages.

However, operators are losing a substantial share of their potential revenue from A2P messaging to third-party providers, who use so-called grey routes to terminate the traffic at a lower cost. A grey route is when the enterprise sends SMS not via the proper commercial interface, instead masking it as P2P messaging to avoid paying the home network. Reports on the value of A2P messages lost to grey routes vary but even those at the lower end of the scale - such as MobileSquared - forecast nearly $6 billion in potential lost revenue in 2018. Another hidden cost to operators that should not be underestimated is the issue of SMS spam. Whether received as unwanted marketing messages or as part of a potential fraud attempt, SMS Spam is having a negative impact on consumers and more importantly on their trust in their operator.

It is becoming increasingly clear that operators who want to ensure they capture their fair share of A2P SMS revenue and retain the trust and loyalty of their customers must put an SMS firewall in place.

The Evolved Intelligence SMS Firewall – SMS spam and A2P protection

The Evolved Intelligence SMS Firewall is supporting a tier 1 European operator group. For more information please contact

Our SMS Firewall solution identifies possible grey routes and lost chargeable traffic by analysing message content, volumes, and message ratios, as well as sender checks for different originating networks (GTs). It then enables controlled introduction and blocking of grey routes, message content and of suspect originating sources. Ultimately this ensures operators capture the revenue that they are owed. The return on operator investment is typically delivered within a matter of months.

Protecting against SMS spam and A2P grey routes requires several levels of protection and the ability to effectively manage frequent new sources of attack and varying SMS content. Our SMS Firewall solution identifies and provides protection against: spam, A2P grey route traffic, Wangiri SMS and Viruses.

The Evolved Intelligence SMS firewall specific SMS checks include:

  • Message content
  • SMS sender checks
  • SMS specific signalling checks
  • Identifying new spam and A2P messages. New A2P or spam patterns and messages are identified and easily blocked or allowed quickly and easily as required.

The user interface of our SMS Firewall was designed with operator input to be intuitive and easy to manage. The dashboard provides a graphical summary of SMS throughout and SMS rule violations over time - as well as an active map view showing the responsible networks. Daily reports are available within the reporting tool including, for example:

  • A summary of A2P violations
  • Details of sender check rule violations
  • Details of content check rule violations

Contact us for more detail about our SMS firewall and how it can protect networks from SMS spam, block A2P grey routes, and recapture and secure operator revenues.

The SMS Firewall as part of the Evolved Intelligence Fraud & Security offer

The SMS firewall functionality is designed to work alongside and in conjunction with our Insight analytics reporting and our Signalling firewall, but each unit can be used independently as required.

The Signalling Firewall from Evolved Intelligence will block malicious signalling attacks, suspect sources of messages and inconsistent or unusually high volumes of signalling or SMS traffic. The firewall therefore provides significant base protection against SMS spam and A2P.

The Insight product from Evolved Intelligence provides a dashboard of metrics to help identify sources of A2P and spam by reporting on unusual messages and ratios of messages. The reputation of the sources of messages can be used to decide whether to block GTs or as input to other decisions.

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