Carrier-Grade Quality
Crystal-clear audio and reliable connections backed by our premium QoS network and 99.99% uptime SLA.
/wholesale-voice
Wholesale Voice
Leading Global Provider of Wholesale Voice Solutions
Your trusted wholesale voice carrier for smooth international calls. High-quality voice termination, direct CLI and non-CLI routes, plus competitive global rates for telecom carriers, VoIP providers, and call centers.
99.99% Uptime SLA200+ Countries10M+ Calls/Day24/7 NOC Support
Live Routes · A-Z
Rates live
DestinationRate / minASR
GBUnited Kingdom
$0.004199
USUnited States
$0.002998
DEGermany
$0.005297
INIndia · Mobile
$0.011896
BRBrazil
$0.008995
AEUAE
$0.021498
Live traffic
128,400 concurrent calls
// why.rozper
Why Industry Leaders Choose Rozper
Transparent Pricing
Cut operational costs with competitive rates and volume discounts — no hidden fees, no aggregator markup.
Global Reach
Reliable call termination to 200+ countries through our direct carrier interconnect network.
24/7 Expert Support
Instant access to engineers and account managers — real humans, not bots, around the clock.
// solutions
Discover Our Key Wholesale Voice Solutions
A-Z VoIP Termination
Take advantage of our reliable A-Z VoIP termination for seamless global call delivery.
Global Reach
200+ Countries
High Quality Routes
Premium Tier-1
Affordable Rates
Market Leading
Real-time Analytics
<50ms Latency
SIP Trunking
Connect your IP-PBX with flexible, scalable wholesale SIP Trunking — keep your existing hardware.
Seamless Scalability
Grow on demand
Cost Savings
vs. legacy PSTN
Easy Integration
All major PBX
Advanced Features
CLI, recording, LCR
DID & Toll-Free Numbers
Instantly establish a local presence with our extensive range of DID and toll-free numbers in 150+ countries.
Local Presence
150+ countries
Instant Activation
Minutes, not days
Number Porting
Minimal disruption
Geographic Coverage
City-level DIDs
UCaaS & CPaaS Integration
Embed our dependable voice infrastructure into your UCaaS or CPaaS platform via API.
API Integration
REST & SIP
White-label Ready
Your brand
Custom Development
Dedicated team
Full Support
24/7 NOC
// performance
Designed for Unmatched Performance
Our infrastructure ensures maximum reliability with built-in redundancy and automated failover protocols, delivering exceptional uptime backed by our SLA.
99.99%
Uptime SLA
200+
Countries
10M+
Calls / Day
50ms
Response Time
Packet Loss
0.01%
Jitter
2ms
Average ASR
99.2%
Post-Dial Delay
< 1.4s
// technology
Complete Control with Advanced Technology
Smart Routing
Advanced algorithms evaluate network conditions, costs, and quality metrics in real time — every call takes the most efficient path automatically.
Real-time Analytics
Intuitive dashboards with instant insights into call quality, volume, costs, and performance across all destinations — live, not in a monthly PDF.
Fraud Detection
AI-driven monitoring watches traffic patterns, flags anomalies, and automatically blocks suspicious activity before it reaches your network.
Carrier Stories
Carriers route smarter with Rozper.
4.9 / 5
G2 · 1,284 reviews
“Moving A-Z termination to Rozper lifted our ASR by six points and the margin tooling paid for itself in the first month.”
AO
Adaeze Okafor
Head of Carrier Relations · Lumen Routes
+6 pts
ASR improvement
Frequently Asked
Questions about wholesale voice.
What carriers and VoIP providers ask before routing traffic through Rozper.
Wholesale VoIP offers bulk rates for carriers and large-scale users, while retail VoIP caters to individual customers with a focus on user-friendly services. Wholesale buyers get carrier-grade pricing and direct interconnects — retail buyers get a polished end-user experience.
// get.started
Get a Custom Rate Card
Share your traffic details — we'll respond within one business day with a tailored A-Z rate deck.
Request a Rate Card
Route your traffic through a carrier-grade network.
Direct A-Z routes, secure SIP interconnections, and a team that answers when quality drops.