Every call routed at carrier speed.
SIP trunking across 195+ countries with HD voice, least-cost routing, and a 99.99% uptime SLA. Per-minute metering, zero commitment — from your first trunk to tier-1 scale.
How it works
From request to result, in 5 steps.
01 · INGRESS
Ingress
Inbound INVITE accepted at the nearest edge PoP with TLS + SRTP.
02 · AUTH
Auth & ACL
IP/credential auth, fraud scoring, and rate limits per trunk.
03 · LCR
LCR engine
Least-cost route picked across carriers with live QoS weighting.
04 · MESH
Carrier mesh
Handed to a tier-1 peer with automatic failover on 4xx/5xx.
05 · EGRESS
Egress + CDR
Connected, media bridged, CDR streamed to your stack in real time.
Watch every route in real time.
See active calls, per-carrier latency, and least-cost decisions as they happen. Drill into any CDR, set alert thresholds, and block suspect traffic in one click — the same console your NOC lives in.
- Per-route latency & QoS scoring
- Real-time CDR stream + signed webhooks
- Automatic failover on 4xx / 5xx
Route your first call today.
Provision a trunk in minutes. Per-minute billing, no commitment, 30-day pilot.
No credit card required · 30-day pilot · Cancel anytime
NU SIP · part of the NU GUI platform