Every case study represents a real client, a real problem, and a measured outcome. No hypothetical scenarios — just verified telecom testing results.
Selected engagements across SMS testing, SS7 security, HLR integration, and more
Validated 47 SMS routes across 12 operators. Discovered 8 failing routes, 3 with latency >5s, one with content corruption. Delivery failure rate: 12% → 0.3%.
Comprehensive SS7 audit across 4 ASEAN markets. Identified 6 exploitable vulnerabilities: subscriber info leakage, location tracking, potential SMS interception.
Built custom HLR lookup pipeline for Tier-1 SMS aggregator. 99.97% accuracy, sub-150ms response via direct MAP queries. 10M+ queries/month handled.
Tested roaming across 8 operator partners in 3 countries. Validated attach success, SMS delivery, data sessions. Report enabled renegotiation of 2 roaming agreements.
Deployed signaling monitoring for fintech processing OTP deliveries. Reduced undetected route failures by 94%. Automated failover to backup routes under 2 seconds.
Designed and deployed SIGTRAN stack for European testing lab migrating from TDM. M3UA ASP/AS routing with SCTP multi-homing for high-availability signaling.
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