The AI-enabled Class 4 softswitch for global carriers
Route, bill, and scale wholesale voice on one cloud platform. Then let AI run your diagnostics, reports, and operations.
What is a Class 4 softswitch?
A Class 4 softswitch routes wholesale voice traffic between carriers, finding the best path for each call and billing both sides accurately. ConnexCS delivers this as a cloud platform with AI built in at every layer.
A routing engine that thinks before it dials
Least cost, round robin, weighted, or tiered distribution per route or per prefix. ASR+ predicts connectivity from cached data before a call ever leaves your switch. ScriptForge lets you script routing logic in JavaScript when rules are not enough.
Explore routing docs →Improve answer rates instantly
ASR+ learns which numbers connect successfully and which don't. It predicts connectivity from cached data before a call ever leaves your switch. Bad numbers are filtered automatically, reducing wasted setup costs and improving your answer rate.
Learn more about ASR+ →Rate cards that build themselves
Compile customer cards from carrier cards with margin rules, not spreadsheets. NPA-NXX and LRN supported with unlimited free dips. Multi-currency, granular rounding, and full revision history on every card.
See rate card docs →Carrier rate card
| Prefix | Destination | Cost |
|---|---|---|
| ^441 | UK · London | $0.0040 |
| ^4477 | UK · Mobile | $0.0092 |
| ^9120 | IN · Mumbai | $0.0061 |
| ^1212 | US · NYC | $0.0028 |
Customer rate card
| Prefix | Sell | Profit |
|---|---|---|
| ^441 | — | — |
| ^4477 | — | — |
| ^9120 | — | — |
| ^1212 | — | — |
Absorb traffic spikes without dropping calls
CPS buffering smooths dialler bursts up to 5x your carrier limits. Set channel and CPS caps per customer, carrier, or route.
Talk to your switch. It answers.
The ConnexCS MCP Server connects AI agents like Claude directly to your platform. Ask a question in plain language. The AI runs diagnostics, traces calls, and reports back. No other carrier-grade softswitch offers this today.
Real-Time Insights
Query call stats, traffic patterns, and health metrics on demand.
Hands-Free Operations
Let Claude read and explain diagnostics. No manual log diving.
Smart Decision Making
Ask for routing recommendations or billing analysis. Get data-driven answers.
Compliant in every territory you terminate
STIR/SHAKEN in the USA, TPS scrubbing in the UK, and regional controls worldwide. Fraud profiles, capped rates, and DDoS protection guard your margins automatically. Granular permissions cover 80+ definable areas with hardware 2FA support.
United States
Carrier Operations Toolkit
Monitor every call and circuit with real-time analysis and network diagnostics. Instantly detect and resolve issues before they impact your customers.
Every packet, every call, always on
Always-on SIP capture renders any call as a ladder, even from weeks ago. Real-time CDRs, call simulation, and circuit tests measuring MOS, PDD, and DTMF.
The AI assistant reads all of it through MCP and explains failures in seconds.
Maximise availability with AnyEdge
A single SIP ingress point is a single point of failure. AnyEdge gives your switch globally redundant Anycast load balancing with 10K+ CPS and 10Gbps DDoS protection. Traffic always enters at the nearest healthy edge.
Source verified VoIP routes without leaving your switch
NeuTrafiX is a VoIP routes marketplace with vetted, rated sellers. Browse, buy, and route from inside the ConnexCS control panel. One contract replaces weeks of per-carrier negotiation and interconnect setup.
NeuTrafiX Marketplace · in control panel
Your switch · active routes
One platform, every layer of voice
These are not bolt-ons. Every product below runs on the same infrastructure as your switch.
Frequently asked questions
Everything you need to know about Class 4 routing and ConnexCS.
Migrating from another switch?
Talk to an engineer about moving from VOS3000 or any legacy platform.