Wherever GTP traffic needs to be built, run, or proven correct.
Three ways operators, vendors, and QA teams put GTP Proxy and Blaze to work — traffic engineering, security & operations, and testing & conformance. The deepest ones get their own page.
Route on what the message actually says, not just where it came from.
GTP Proxy reads every Information Element in a GTP-C message, so a routing decision can key off radio access type, APN, subscriber range, or handover state — not just source/destination IP.
Element-based traffic routing
Match on RAT-Type, Serving-Network MCC, ARP priority, or any other Information Element the instant a session is created — e.g. steer NB-IoT roamers on an Australian partner network to a dedicated low-power core pool automatically.
Learn more →MVNO gateway steering on shared APNs
Several MVNOs sharing one sponsor APN — commonly the IMS APN used for VoLTE — still land on their own GGSN/PGW, routed by IMSI/MNC, without splitting the APN or the sponsor's core.
Learn more →VoLTE ↔ VoWiFi handover continuity
A call started over S5/S8 (LTE) has to keep the same IMS session and UE IP after handing over to S2b/ePDG (Wi‑Fi calling) — verified with Blaze, carried in production by GTP Proxy.
Learn more →Guard the boundary. Keep running it with confidence.
GTP Proxy screens traffic at the edge and hides your internal topology from partners; Grace, its built-in console, keeps that boundary observable and changeable without guesswork.
Interconnect & roaming security
Screen and filter GTP-C/GTP-U traffic at the interconnect boundary before it reaches core network nodes, presenting partners a single stable endpoint while your internal topology stays hidden.
Learn more →Day-2 operations & incident response
Watch live GTP-C/GTP-U health, session state, and error rates through Grace, and stage, preview, and roll out a policy or configuration change the moment something needs to move fast.
Learn more →Prove it works before a real subscriber finds out it doesn't.
Blaze emulates any GTP client or server, plays real procedures, and asserts every Information Element — as a one-off validation or as a permanent gate in your pipeline.
Roaming interoperability validation
Emulate a partner's core node and run real roaming procedures end to end — Create Session, Update Bearer, Delete Session — confirming both sides handle GTP the same way before go-live.
Learn more →Conformance & regulatory evidence
Produce repeatable, assertion-level evidence — every IE checked, every cause code recorded — that GTP Proxy and connected nodes behave to spec, ready to hand to a compliance or partner audit.
Learn more →CI/CD test automation
Wire your GTP procedure library into GitLab CI, GitHub Actions, or Jenkins so every build is checked for conformance and regression before it ships — a failed assertion fails the build.
Learn more →Load & soak testing
Drive sustained GTP-C/GTP-U procedure volume — thousands of concurrent sessions, hours of soak — against GTP Proxy or a core node to validate stability under real-world load, not a synthetic ping.
Learn more →Don't see your scenario? Tell us about it.
Most GTP testing and assurance problems map to one of these patterns — we'll help you find yours.
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