GSM MAP, TCAP, and SCCP are fully documented. What isn’t documented: which subsystem numbers a given carrier actually expects live, whether a response needs to route by point-code-and-subsystem or by Global Title, or that a decode step buried inside your protocol library silently returns nothing instead of throwing an error.
Every one of these looks fine in a lab. Every one of them breaks in production, quietly, with nothing pointing at the actual cause.
MO-SMS reception, routing-address mismatches, silent registration conflicts. Real production incidents we’ve debugged and fixed, not textbook scenarios.
Undocumented subsystem numbers, routing quirks, and authorization gates that never show up until you’re live.
Our licensing mirrors the model the market already expects. No inflated premium just for working with us.
A protocol library license, project-based consulting, or a single paid session. Whatever actually matches your stack and timeline.
SS7 (SCTP, M3UA, SCCP, TCAP, MAP) and Diameter building blocks, plus GMLC/LCS location-service support, hardened against real carrier behavior rather than just spec compliance.
Stuck on a carrier interconnect that won’t complete? We diagnose against patterns we’ve already seen, not from scratch.
A paid, bookable slot with someone who’s actually done the debugging. Bring a specific problem, a config to review, or questions before you commit to a bigger engagement.
Available as licensed software, project-based consulting, or a paid session. We’ll figure out what fits once we know your stack.
Sanitized, generalized lessons. No carrier names, no configs, no client details.
Receiving a text for a service number usually means implementing two separate roles: answering the carrier’s own routing query, then separately accepting the actual delivery. Miss either half and the carrier’s system looks like it’s ignoring you, when it’s really just waiting on a question you never addressed.
A perfectly valid response can go nowhere if it’s routed by Global Title when the carrier expects point-code-and-subsystem, or the other way round. No error, no warning. The message just never arrives.
A subsystem registration reused the same internal reference across multiple entries. The first one worked. Every one after it silently failed. No exception, no log line, nothing pointing at the actual cause.
Some protocol libraries hand back an object successfully but leave its actual content unpopulated until you explicitly ask for it. Skip that step and you get a message that looks received but reads as empty, right up until it crashes something downstream.
A location request can reach the network, parse correctly, and come back with a clean, valid-looking rejection, because the carrier’s own authorization policy, not the protocol implementation, is what’s actually saying no. That’s a contract conversation, not a debugging session, and most teams spend weeks treating it as the latter.
The interface names change. An Application-ID instead of an Application Context, a Diameter peer instead of an SS7 point code. But the pattern underneath doesn’t: a routing decision that looks correct in isolation still has to match exactly what the node on the other end expects, or nothing about it visibly fails. It just goes nowhere.
Which carriers, which protocols, and where things are actually breaking, or where you’re starting from scratch.
Most SS7 problems aren’t new. They’re a variation on something we’ve already seen and solved.
Plus the documentation to keep it working after we’re gone.
Our protocol-library licensing mirrors the standard per-node commercial model used across the industry, so you’re not paying a premium to work with us.
SS7 & Diameter, licensed per node/VM. No TPS, CPU, or core limits.
Annual, support included
Perpetual, support included year one, then $2,250/node/year
Diagnosing and fixing a stuck carrier interconnect: SS7, Diameter, or GMLC/LCS.
Scoped per engagement, once we know your stack
A single paid slot. Bring a config to review, a specific failure, or questions before committing to more. Pick a time, no commitment.
We’re onboarding a small number of early partners.