info@blugem.com +44 (0)1271 374 110

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How Fraudsters Find the Path of Least Resistance

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Delight customers. Drive loyalty. Grow profit.Turn service quality into your competitive edge. Discover what customers really think, slash churn with real-time automated testing, and deliver the flawless subscriber experience that drives loyalty and long-term profit. Give your teams the evidence-based insight they need to optimise performance enterprise-wide—and launch digital transformation projects with total confidence across every network.

Monitor, detect, resolve - in real timeSubscribers expect a flawless experience around the clock—and your operations teams need the real-time intelligence to deliver it. Our heart-beat testing runs continuously across end-to-end user journeys, triggering instant alerts the moment service levels slip. With evidence-based analytics at their fingertips, your teams can pinpoint and resolve issues fast, protecting performance, reputation and subscriber loyalty.

Independent assurance for ambitious MVNOsMVNOs must deliver exceptional customer experiences while protecting margins and brand reputation. BluGem provides independent testing, fraud detection, roaming assurance and real-world service monitoring to help MVNOs validate performance, reduce risk and build customer trust.

Stop revenue leakage before it costs youEvery change to your systems, contracts or rates is a potential leak in your bottom line—and in today's complex environments, those leaks add up fast. Our end-to-end test solutions trace the full revenue journey, from device usage through switch and mediation to the customer bill, pinpointing exactly where margin is slipping away. Take immediate, targeted action to protect your profits and secure long-term growth.

Interconnection assurance, end to endInterconnection is where revenue, compliance and customer trust all meet and where a single misrouted call or mispriced rate can cost you dearly. Our test solutions give you the power to interrogate networks and routes with precision, exposing fraud, verifying billing accuracy and ensuring full regulatory compliance. Launch next-generation services like eSIM and OTT voice and messaging globally with total confidence.

Protect your network from fraud, scams and evolving threatsFraud is constantly evolving. From SIM boxes, OTT bypass and CLI refiling to scam messaging, spoofing and firewall evasion, operators face growing pressure to protect revenues, customers and brand reputation. BluGem provides global threat intelligence and real-world monitoring solutions that help identify vulnerabilities before criminals exploit them. Whether you need active fraud detection, SMS honeypot intelligence, firewall validation or assurance against international traffic abuse, our solutions help you detect threats faster, reduce losses and strengthen your defences.

Get to market faster, get it right first timeIn a fiercely competitive market, every product launch is a chance to win loyalty—or lose it. A single missed customer journey, miscalculated tariff or broken notification can derail months of work. We partner with Product Managers and Go-To-Market teams to build rigorous test plans that cover every scenario, pre-live and live. From promotions and tariff refreshes to roaming zones and spend-caps, we make sure your launch lands perfectly, on time and on brand.

Transform with confidence, not compromiseEvery new system, platform or migration brings opportunity and risk. A single discrepancy between legacy and new environments can disrupt service, corrupt data and damage customer trust.

We help you transform with confidence, rigorously verifying the accuracy and functionality of new systems against legacy benchmarks in both test and production, so change delivers progress, not problems.

Independent evidence. Regulatory confidence.Regulators expect proof, not assumptions. Communications providers face increasing scrutiny over billing accuracy, service performance and consumer protection. BluGem delivers independent, quantitative testing that provides clear evidence of compliance, validates customer outcomes and helps organisations demonstrate transparency, accountability and trust.

Independent oversight for national authoritiesSelf-reporting only goes so far, national authorities need independent evidence to verify that communication providers are meeting their regulatory obligations. Our test equipment interfaces directly with the network to deliver impartial, verifiable proof of compliance. From exposing SIM box fraud and interconnect bypass to tracking emerging schemes targeting internet and OTT services, we help regulators safeguard consumer interests and recover the tax revenues rightfully owed.

Precision testing for law enforcement supportNational security and law enforcement agencies rely on accurate network information to do their critical work and any inaccuracy can have serious consequences. BluGem's automated test solutions verify that network data is being supplied and interpreted exactly as it should be giving agencies the confidence to act on intelligence that's been independently proven.

Independent testing for quality and service assuranceDelivering reliable communications services requires more than laboratory testing. BluGem helps QA and test management teams validate voice, messaging, data, roaming and digital services using real devices, real networks and global test resources. Our independent testing solutions help identify issues earlier, improve service quality and increase confidence before launch.

Avoid surprises after launchThe cost of finding issues after deployment is always higher than finding them before release. BluGem provides independent testing that helps release teams validate services under real-world conditions, uncover hidden defects and gain confidence that new products, updates and platform changes are ready for customers.

Global app assurance, local user insightYour app needs to perform flawlessly on every device, every operating system and every network your customers use wherever they are in the world. Our scripted, repeatable tests validate functionality and usability in the live environment, while our global network of international testers delivers language validation and unbiased user feedback across countries and carriers. Launch with confidence that your app meets customer expectations everywhere it matters.

How Fraudsters Find the Path of Least Resistance Find out how fraudsters are bypassing network SMS firewalls by utilising other methods of delivery

Testing and Assurance

Fraud and Threat Intelligence

Specialist Solutions

Other

Test Call Generation

Roaming & International

Data & App Tracking

Independent Timing

Independent Rating

eSIM

SMS Engagement

Interconnect Fraud Detection

Honeypot Scam and Spam Detection

SMS Firewall Testing

Emergency Services

IoT

IMS Voice Calls

Fixed Line & Broadband

Lawful Interception

iOS Testing

Functional Testing

Usability Testing

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Automated End-to-End, Telecom Service ValidationBluGem's patented Test Call Generator (TCG) is the automation platform behind our independent telecom assurance solutions. Using real devices across global networks, it automatically generates Voice, Messaging and Data events to validate customer experience, charging, roaming and network performance, providing trusted evidence through continuous end-to-end testing.

Real-world testing for roaming and international servicesWhen customers roam, your reputation travels with them. BluGem assures roaming and international services across more than 100 countries using automated TCG units and a global Crowd Network of real users on real devices. Roaming zones, tariffs and welcome messages are validated against real customer journeys, with rapid results delivered through a fully managed service.

Every Byte Validated. Every Charge Verified.BluGem independently validates charging policies for domestic and roaming services, ensuring zero-rated, sponsored and standard application traffic is rated exactly as intended. By comparing real handset activity with network CDRs and PCAP analysis, we identify incorrect charging rules, application-specific billing discrepancies and hidden roaming costs before they impact revenues or the customer experience.

Independent Validation of Timing AccuracyAccurate CDR timing is essential for charging, billing and regulatory compliance. BluGem's TÜV SÜD BABT approved independent timing system provides a certified reference for validating call start times and durations across multiple network records, enabling operators to identify discrepancies quickly and resolve them with confidence.

Validate Tariffs, Rating and BillingAccurate charging depends on every tariff, bundle and rating rule working exactly as intended. BluGem independently re-rates mediated CDRs to validate charging accuracy and quickly identify discrepancies across domestic and roaming services. Combined with our automated Test Call Generator, we provide true end-to-end assurance of tariff, rating and billing accuracy with independent evidence and expert analysis.

Validate the Complete eSIM Customer JourneyAs eSIM adoption accelerates, operators must ensure digital provisioning delivers the same reliable customer experience as traditional SIMs. BluGem independently validates eSIM activation, provisioning, profile management, charging and customer notifications across our global network of real eSIM-capable devices, comparing physical SIM and eSIM journeys to identify issues before they affect customers.

Independent Customer Messaging AssuranceCustomer messaging plays a critical role in the subscriber experience, from roaming welcome messages and fraud alerts to billing notifications and promotional campaigns. BluGem independently validates customer communications across our global network of real devices, verifying delivery, content, timing and trigger conditions with real-time screenshots and independent evidence of exactly what your customers experience.

Bypass detection fraudsters can't predictFraudsters are faster, smarter and more relentless than ever, bypassing interconnects, refiling CLIs and shifting traffic onto OTT platforms to evade detection and steal revenue. BluGem fights back using real subscriber SIMs, fixed lines and SIP clients across the globe, combined with a Global Crowd of 100,000+ users that continuously rotates traffic sources so fraudsters cannot predict or track testing activity. Detect bypass, CLI refiling and OTT fraud quickly with instant alerts and clear pass/fail reporting.

Independent Intelligence Against Messaging ThreatsMessaging threats are constantly evolving and operators need independent visibility of the scams, spam and fraud targeting their customers. BluGem's global honeypot network passively collects unsolicited voice calls, SMS, RCS and iMessages, combining AI assisted threat classification with expert analyst review to deliver trusted, evidence-based intelligence.

Know your telecom firewalls are performing as expectedDeploying a firewall is only the beginning. Even with major investment, scams, bypass attacks and evolving threats still reach subscribers, and without independent validation it's hard to know how effective your defences really are. BluGem combines proactive controlled-traffic testing with passive monitoring to reveal how your firewalls perform against real-world attacks and highlight where updates are needed.

The most important calls on your networkFew obligations are as critical as connecting the public to police, fire and ambulance services, and failures have tragic, real-world consequences. BluGem independently verifies that emergency calls route correctly across CS, VoLTE, VoWiFi and 5G, at home and while roaming, on physical SIM, eSIM and no SIM. With affordable monthly programmes, location-ID checks and network fallback testing using real handsets worldwide, we help you prove every emergency call connects when it matters most.

Validate IoT Devices and ServicesReliable IoT services depend on accurate connectivity, communications and billing. BluGem independently validates connected devices through real-world testing, verifying functionality, CDR accuracy and end-to-end service performance across global networks.

Validate IP-Based Voice ServicesModern voice services rely on multiple technologies working seamlessly together. BluGem independently validates SIP, VoLTE, VoWiFi, GSM and PSTN services across real devices and global networks, verifying call routing, service continuity, roaming and CDR accuracy. From CS fallback and missing CDRs to roaming interoperability issues, we identify problems before they impact your customers.

Independent Assurance for Fixed Line and Broadband ServicesOperators need confidence that fixed voice and broadband services are delivered, recorded and charged accurately. BluGem independently validates PSTN, ADSL and broadband services using approved timing, comprehensive CDR reconciliation and precise data measurements to verify service performance, customer experience and billing accuracy.

Independent Lawful Interception TestingBluGem independently validates IP address resolution and continuously verifies Voice, SMS and Data records through automated 24/7 testing. Gain trusted evidence that your Lawful Interception platform is capturing complete and accurate subscriber records.

Validate iOS Apps on Real DevicesiOS behaves differently from Android, making independent validation essential. BluGem uses real Apple devices to verify application performance, network charging and CDR accuracy, ensuring every customer receives a consistent experience regardless of platform.

Validate system functionality through defined test journeysUndetected errors don't just frustrate users, they can stop your product working altogether. BluGem combines automated test event generation with experienced multi-lingual crowd testers to validate scripted journeys against your specification, on real devices, in the locations and networks that matter. With evidenced defects, risk categorisation and a dedicated project manager, you launch faster and with confidence.

Global User Experience ValidationYou've invested in a great product, but does it actually feel right to the people who'll use it? Skipping usability testing risks missing your target audience, frustrating customers and damaging your brand. BluGem's international crowd network delivers unbiased, real-world feedback from a wide demographic, with evidenced reports and a dedicated project manager, so you go to market with confidence and the insight to keep improving.

How Fraudsters Find the Path of Least Resistance Find out how fraudsters are bypassing network SMS firewalls by utilising other methods of delivery

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Get to know the team behind your testingOur experts are approachable and always ready to help you with any request. Meet our management team below.

Our journey to where we are todayWe've come a long way in 20 years. Find out where it started and the steps along the way to supporting some of the worlds largest telecommunication networks.

How we care for people and natureFinding harmony for people and nature has always been central to BluGem’s business philosophy. The location of our base of operations alongside a UNESCO biosphere reserve provides our staff with the opportunity to engage in hands-on preservation and team building in some stunning coast and moorland in North Devon, England. This is complemented by a range of charitable activities that support health, sport and culture.

Come and join the BluGem teamOur team is always expanding. See if we have any roles that fit your skill set.

How Fraudsters Find the Path of Least Resistance Find out how fraudsters are bypassing network SMS firewalls by utilising other methods of delivery

Latest News How Fraudsters Find the Path of Least Resistance

info@blugem.com +44 (0)1271 374 110

SOLUTION

SMS Firewall Testing

SMS Firewall Assurance

Messaging firewalls are a critical line of defence against scams, spam, fraud and other messaging threats. As fraudsters continually adapt their techniques, firewall policies must be regularly tested and updated to remain effective.

Our independent assurance also supports Ofcom's new General Condition C9, with the new P2P messaging requirements coming into force on 18 January 2027. These require UK operators to regularly review their scam protection measures to ensure they remain effective.

Validate firewall effectiveness and identify configuration weaknesses
Independently verify firewall products and deployed solutions
Verify legitimate A2P messages are delivered successfully
Identify scam and fraudulent SMS messages reaching subscribers

BluGem's SMS firewall testing uses controlled, customer-defined test scenarios, including agreed sender numbers, keywords and message content, to validate how firewall rules respond and identify potential filtering weaknesses.

Testing can be complemented by passive SMS monitoring using real devices on live networks, providing visibility of scam, spam and potentially fraudulent messages reaching subscribers and emerging techniques being used to evade protection.

Together, these capabilities help validate both the effectiveness of scam protection and the successful delivery of legitimate A2P messaging.

Supporting evolving regulatory requirements

As regulators strengthen requirements to protect consumers from messaging scams, independent testing can provide valuable evidence that protection measures are operating effectively.

In the UK, Ofcom's new General Condition C9 requires communications providers to regularly review their scam protection systems and processes to ensure they remain appropriate, effective and operate as intended. BluGem's independent firewall testing can support these requirements by validating controls under live network conditions and providing objective evidence of firewall performance.

SMS Firewall Testing

SMS Firewall Assurance

Supporting evolving regulatory requirements

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