Call Control · CDR & Rating

Bill every call.Block every fraud.

A Kamailio-based call-control and CDR platform handling 10,000+ simultaneous calls with real-time AI fraud detection. Prepaid and postpaid rating, multi-currency billing, and a rules-plus-ML engine that cuts revenue leakage by up to 40%.

Book a demo Read the docs

10k+

Calls / sec

40%

Less leakage

Multi

Currency

control-room — nuccs.coLive

⚑ FRAUD +880 1xxx · velocity spike score=0.94

rule: SIM-box pattern → auto-block

✓ RATE leg charged R 2.14 · postpaid

← CDR written · streamed to S3

+27 11 555 ···· ZA · postpaid

R 1.80

+44 20 7946 ···· UK · prepaid

R 0.42

+880 1712 ···· BD · flagged

block

+1 415 555 ···· US · postpaid

R 0.96

10k+

Calls per second

40%

Revenue-leakage cut

Currencies rated

99.9%

Platform uptime

How it works

From request to result, in 5 steps.

01 · INGRESS
Ingress
Call enters the Kamailio proxy; trunk and customer identified.
02 · RATE
Rate
Prepaid balance checked or postpaid charge computed from the rate deck.
03 · SCREEN
Fraud screen
Rules engine + ML model score the call; suspect traffic auto-blocked.
04 · SWITCH
Switch
Call routed to the chosen carrier with live QoS monitoring.
05 · CDR
CDR
Enriched CDR generated and streamed to S3, FTP, or your billing stack.

Live · 8,140 calls active

Fraud & revenue assurance

Catch leakage before it bills.

A rules engine combined with ML models flags SIM-box, Wangiri, and velocity fraud in real time — with one-click block and full CDR forensics on every suspect call.

Rules + ML fraud scoring per call
Automatic block & real-time alerts
Prepaid & postpaid multi-currency rating

40%

Leakage cut

0.94

Avg fraud score caught

<1s

Block latency

Under the hood

Full-stack, production-ready.

Traffic management

Kamailio call routing & filtering
10,000+ calls per second
Concurrent-call & CPS limits
Live QoS & ASR/ACD monitoring

Real-time billing

Prepaid & postpaid rating
Multi-currency rate decks
Per-second & tiered billing
Balance & credit-limit controls

AI fraud detection

Rules + ML scoring engine
SIM-box, Wangiri, velocity detection
Automatic blocking & alerting
Up to 40% leakage reduction

CDR management

Enriched, multi-leg CDRs
S3, FTP/SFTP & API export
Real-time CDR streaming
Revenue & quality dashboards

Interconnect

Kamailio · OpenSIPS · FreeSWITCH
SIP trunk & carrier peering
Number translation & LCR
Topology hiding

Control & reporting

Live call-flow dashboards
REST API & webhooks
Anomaly alerting thresholds
Per-customer revenue reports

10k+

Calls / sec

40%

Leakage reduction

<1s

Fraud block latency

Currencies

NU CCS is built on a hardened Kamailio core — wrapped in our own rating engine, ML fraud models, and revenue-assurance console, so you run carrier-grade call control without operating the SIP stack yourself.

Built for engineers

Everything you need to scale.

Traffic management

Advanced filtering, routing, and monitoring on Kamailio — 10,000+ calls per second reliably.

Real-time billing

Prepaid and postpaid rating with multi-currency rate decks and per-call charging.

AI fraud detection

Rules plus ML cut revenue leakage by up to 40%, with real-time alerts and automatic blocking.

CDR management

Generate, enrich, and export CDRs to S3 or FTP, with analytics for revenue and quality.

Rate & export in code

Your rate decks, programmable.

Upload rate sheets, define fraud rules, and pull CDRs from your own stack. Everything the console does is available over the API.

REST API + JSON-RPC
Fraud-event & CDR webhooks
S3 / SFTP CDR delivery

upload-ratedeck.sh

# publish a new rate deck
curl -X POST https://api.nuccs.co/v1/ratedecks \
  -H "Authorization: Bearer $NU_CCS_KEY" \
  -d '{ "name": "wholesale-za", "currency": "ZAR",
       "prepaid": true, "fraud_rules": "default" }'

# → 201 Created
{ "id": "rd_3Hq9…", "status": "active",
  "destinations": 4128 }

Stop revenue leakage today.

Book a demo and we'll run a fraud-and-rating assessment on a sample of your traffic — 30-day pilot, no commitment.

Book a demo Talk to sales

30-day pilot · Revenue-assurance assessment included

NU CCS · part of the NU GUI platform

Under the hood

Full-stack, production-ready.

Traffic management

Kamailio call routing & filtering
10,000+ calls per second
Concurrent-call & CPS limits
Live QoS & ASR/ACD monitoring

Real-time billing

Prepaid & postpaid rating
Multi-currency rate decks
Per-second & tiered billing
Balance & credit-limit controls

AI fraud detection

Rules + ML scoring engine
SIM-box, Wangiri, velocity detection
Automatic blocking & alerting
Up to 40% leakage reduction

CDR management

Enriched, multi-leg CDRs
S3, FTP/SFTP & API export
Real-time CDR streaming
Revenue & quality dashboards

Interconnect

Kamailio · OpenSIPS · FreeSWITCH
SIP trunk & carrier peering
Number translation & LCR
Topology hiding

Control & reporting

Live call-flow dashboards
REST API & webhooks
Anomaly alerting thresholds
Per-customer revenue reports

10k+

Calls / sec

40%

Leakage reduction

<1s

Fraud block latency

Currencies

Bill every call.Block every fraud.

From request to result, in 5 steps.

Ingress

Rate

Fraud screen

Switch

CDR

Catch leakage before it bills.

Full-stack, production-ready.

Traffic management

Real-time billing

AI fraud detection

CDR management

Interconnect

Control & reporting

Everything you need to scale.

Traffic management

Real-time billing

AI fraud detection

CDR management

Your rate decks, programmable.

Stop revenue leakage today.

Full-stack, production-ready.

Traffic management

Real-time billing

AI fraud detection

CDR management

Interconnect

Control & reporting

Everything you need to scale.

Traffic management

Real-time billing

AI fraud detection

CDR management

Your rate decks, programmable.