Telecom Software
Development
Tailored engineering for core network nodes. We build custom SMPP, SS7, SIP and CAMARA applications designed for zero-latency execution and five-nines availability.
Engineering for the Signaling Plane
Most software shops can write a REST API. Very few can write one that lives next to an HLR, terminates SS7 traffic, settles charging in real time, and keeps a Tier-1 operator's SLA intact under five-nines availability. That is the work we have been doing for over fifteen years.
Our telecom software practice combines deep protocol expertise — SMPP, SS7 (MAP/CAP/TCAP/SCCP), SIGTRAN, Diameter, SIP, CAMARA — with modern software engineering: containerized deployments, observability built in from day one, and pipelines that ship code to production weekly without taking down a single signaling link. We don't just integrate APIs; we write the protocols that the APIs sit on top of.
Whether you need a customized routing engine on top of our aSMSC Phoenix platform, a bespoke USSD gateway for mobile money flows, or a greenfield CAMARA exposure layer feeding into our CAMARA Core, the same engineering team designs, builds, deploys and supports it end-to-end.
By the Numbers
- Years Building
- 15+
- Production Deployments
- 200+
- Direct Interconnects
- 900+
- Countries Served
- 70+
Deep Protocol Expertise
We don't just use APIs; we write the protocols that power them.
Custom SMSC Nodes
High-TPS routing nodes with specialized business logic, multi-tier billing and DLR pipelines.
BSS/OSS Integration
Billing engines, CDR mediation, and CRM connectors for legacy operator stacks.
Signaling Gateways
SIGTRAN (M3UA/SCTP), Diameter, and SIP-I protocol conversion layers.
CAMARA / Open Gateway
GSMA OPG.10-compliant Network API exposure with OAuth 2.0 and CIBA flows.
USSD & Self-Care
Phase 1 & 2 USSD applications for mobile money, banking, and subscriber self-service.
Charging & Mediation
Online and offline charging on Diameter Gy/Ro plus real-time CDR streaming.
Network Security
SS7 firewall rule engines, GT spoof detection, and SIM-box behavioural analytics.
Operator Portals
Multi-tenant React/Next.js dashboards for routing, reporting, and customer management.
Migration & Modernization
Lift legacy stacks (Comverse, OpenWave, in-house) onto modern containerized cores.
The Languages & Protocols We Ship Daily
Selected for throughput, fault-tolerance, and ecosystem fit — not for fashion.
Data Plane
- • Erlang / Elixir (telecom heritage, OTP supervision)
- • C++17/20 (signaling stacks, zero-copy paths)
- • Go (gateways, sidecars, control loops)
- • Java 17 (BSS, charging, integrations)
Protocols
- • SMPP v3.4
- • SS7 — MAP, CAP, TCAP, SCCP
- • SIGTRAN — M3UA, SUA, SCTP
- • Diameter, SIP / SIP-I, RADIUS, gRPC
Platform & Ops
- • Kubernetes, Docker, Helm
- • Kafka, NATS, Redis, PostgreSQL, ClickHouse
- • Prometheus, Grafana, OpenTelemetry
- • AWS, GCP, Azure, on-prem OpenStack
From Discovery to Carrier-Grade Delivery
A predictable five-stage process tuned for telecom realities — interconnect testing, regulatory clearance, and zero-downtime rollouts.
Discovery
Architecture review, traffic profile, regulatory and SLA constraints captured in a written scoping doc.
Architecture
Detailed design, capacity sizing, failover topology and integration interfaces signed off before any code is written.
Build & Verify
Two-week sprint cadence with continuous protocol-conformance and load testing in our reference lab.
Interop & UAT
Live interconnect testing with operator peers, regulator approvals, and 30-day shadow-traffic soak.
Operate & Evolve
24/7 NOC handover, on-call rotation, and a roadmap for the next quarter of feature work.
Need 24/7 hands on the platform once it's live? We pair every build with managed services and 24/7 NOC support so the team that built the system is the team that runs it.
Industries & Buyer Profiles
The same engineering applies — but the constraints, regulators, and SLAs differ.
Mobile Operators (MNOs)
Bespoke SMSC, USSD, and CAMARA exposure layers running inside the trusted network perimeter.
MVNOs & Aggregators
Turnkey messaging cores with multi-tenant routing, billing, and reseller portals.
Banks & Fintech
OTP delivery hardening, SIM-swap detection, and regulatory-grade audit trails.
IoT & Enterprise
Number lookup, SMS automation, and CAMARA Network API consumption integrated into business apps.
The Platforms Our Custom Builds Sit On
Most engagements extend one of our productized cores — saving months of greenfield work.
aSMSC Phoenix
High-throughput wholesale messaging core with LCR, billing, and DLR pipelines.
ExploreSS7 SMSC Core
Native SIGTRAN/SS7 stack for in-network deployments and signaling-grade routing.
ExploreaUSSD Gateway
Phase 1 & 2 USSD platform for mobile money, balance checks, and self-care.
ExploreaWALL SMS Firewall
AI-driven signaling inspection blocking grey routes, SIM-box and GSMA Cat 1-3 attacks.
ExploreCAMARA Core
GSMA Open Gateway exposure platform for SIM Swap, Location, QoD and Number Verification.
ExploreaCPaaS Platform
Turnkey CPaaS aggregation layer with multi-channel APIs and tenant management.
ExploreHLR & MNP Lookup
Real-time SS7 subscriber validation and portability resolution for routing engines.
Explore24/7 NOC Services
Operator-grade monitoring, incident response and change management for live nodes.
ExploreFrequently Asked Questions
Common questions about scoping a custom telecom build with us.
Still have questions? Our solutions team can walk you through deployment, pricing, and integration.
Contact SalesHave a Carrier-Grade Build in Mind?
Walk us through the requirement — we'll come back with a scoped architecture, timeline and fixed-price proposal within ten business days.