High-quality routes for carriers, resellers and enterprises — powered by our own SMPP switching platform: least-cost routing, reliable delivery, real-time prepaid billing and 24/7 support. Stable routes, clear reporting, fewer surprises.
From the customer bind to the delivery receipt, every stage of the message lifecycle is handled by purpose-built components you fully control.
A multi-core async engine accepts customer binds and manages an outbound supplier client pool — no black-box middleware.
LCR finds the cheapest healthy route per destination with MCC/MNC precision and percentage-based load distribution.
Per-prefix buy/sell rate plans with CSV import/export and live margin visibility on every message.
Full delivery-receipt chain correlates every submit to its final status — feeding billing, retries and analytics.
Programmable content filtering and sender-ID overwrite rules enforce compliance before a message ever leaves the switch.
A built-in internal simulator vendor lets you validate routing, billing and DLR flows with synthetic traffic — no live spend.
Every submit_sm flows through a deterministic pipeline — each step atomic, observable and reversible.
Constant-time credential check + per-customer IP allowlist.
Atomic Redis check-and-reserve — no double-spend.
Cheapest healthy route by MCC/MNC.
Sender-ID overwrite & content filter.
Windowed submit to the supplier pool.
Call-detail record with buy/sell & margin.
Receipt reconciles billing & status.
Security isn't a feature bolted on — it's enforced from the TCP socket to the browser session. Independent code and infrastructure audits inform the controls below.
TLS 1.2/1.3 termination for the portal & APIs, HSTS, and SMPP-over-TLS ready for encrypted binds.
Bcrypt password hashing and constant-time credential comparison to defeat timing attacks.
Short-lived access tokens + rotating refresh tokens in httpOnly cookies, with a Redis revocation list.
Auto-blocks source IPs after repeated failed binds, with a protected allowlist for trusted sources.
Redis-backed per-client throttling on logins & APIs — consistent across every worker, keyed to the real client IP.
Per-connection panic recovery & connection caps keep one bad actor from ever taking down the switch.
Fully parameterized queries and sandboxed rendering — no SQL injection, no stored-XSS surface.
Full audit log of privileged actions, fail2ban intrusion defense, and encrypted daily off-site backups.
Prepaid wallets are debited the instant a message is accepted and reconciled the instant its receipt lands — atomically, with no leakage.
Atomic check-and-deduct on submit, atomic credit on refund. Balances live in memory for sub-millisecond decisions and never oversell.
Every message writes a call-detail record carrying buy rate, sell rate and margin — rolled straight into invoices and profitability reports.
TPS, delivery ratio, revenue, margin and live host bandwidth — refreshed continuously, backed by Prometheus & Grafana.
A containerized stack with a native high-performance engine — reproducible from a golden image and cloned per client in minutes.
Spin up an isolated, fully-configured switch for a new client in minutes — fresh secrets, clean data, one command.
Single-command deploys, health-gated config reloads and self-healing services keep every node consistent.
Each deployment is a sovereign instance — its own data, secrets and network boundary. No shared tenancy.
LCR ONE LLC delivers high-quality VoIP & SMS termination for carriers, resellers and enterprises. We compete on reliability, transparency and long-term partnership — not just price.
We prioritise stable, high-quality routes and track performance continuously — so you scale with fewer surprises and consistent throughput.
Real-time delivery confirmation, CDRs and margin visibility on every message. Clear communication and faster troubleshooting when it matters.
Flexible options as your traffic grows and a support team on call around the clock. We build relationships, not one-off deals.
Beyond SMS, LCR One provides wholesale VoIP termination with intelligent LCR routing, real-time monitoring, SIP trunk management and integrated billing — millions of minutes at scale.
Tell us a little about you and we'll grant time-limited access to a live demo environment on our dedicated demo server. Access expires automatically after 2 hours — no cost, no commitment.