Carrier-Grade Quality
Reliable connections on a network built for wholesale traffic, with call quality monitored across routes.
/wholesale-voice
Wholesale Voice
Wholesale Voice Services for Resellers & Call Centers
DID & toll-free numbers, SIP trunking, and UCaaS/CPaaS voice on one wholesale relationship — built for resellers, call centers, and platforms that run their own voice product through a single provider. Looking for carrier-to-carrier termination? See our wholesale VoIP provider page.
DID & Toll-Free NumbersSIP TrunkingUCaaS & CPaaS VoiceWorldwide Coverage
Your voice stack
DID & toll-free numbers
Local presence and number porting
SIP trunking
For your PBX or contact center
UCaaS & CPaaS voice
API-based and white-label ready
Outbound termination
Included with your account
One wholesale relationship for the voice layer behind your product or contact center.
// why.rozper
Why Industry Leaders Choose Rozper
Transparent Pricing
Clear per-minute pricing with volume-based discounts, shared in your rate deck.
Global Reach
Call termination to destinations worldwide through our carrier interconnect network.
Expert Support
Access to engineers and account managers — real people, not bots.
// solutions
Discover Our Key Wholesale Voice Solutions
DID & Toll-Free Numbers
Establish a local presence with DID and toll-free numbers in countries worldwide.
Local Presence
Numbers worldwide
Fast Activation
Quick provisioning
Number Porting
Minimal disruption
Geographic Coverage
Local DIDs where available
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
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
Engineer access
Outbound Termination, Included
Outbound calling to destinations worldwide comes with your account. Need carrier-to-carrier A-Z interconnection and per-route control instead? See our wholesale VoIP provider page.
Global Reach
Worldwide destinations
Quality Routes
Monitored per route
Clear Pricing
Per-minute rates
Real-time Analytics
Live route reporting
// 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
Monitoring watches traffic patterns and flags anomalies, so suspicious activity can be stopped before it reaches your network.
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Wholesale VoIP or wholesale voice services?
The two terms describe different needs. Pick by what you are building.
Wholesale VoIP
Carrier interconnection
For carriers, ITSPs, telecom aggregators, and mobile network operators moving traffic between networks.
- A-Z termination and direct SIP interconnects
- Route-level quality control: ASR, ACD, PDD, and CLI
- Fraud monitoring and alerts on your routes
- Per-minute wholesale rates and rate decks
Wholesale voice services
Numbers, trunks & platform voice
For resellers, call centers, and UCaaS or CPaaS platforms that run their own voice product.
- DID and toll-free numbers in countries worldwide
- SIP trunking for your PBX or contact center
- API and white-label voice for your own platform
- Outbound termination included with your account
Still comparing providers? Use our checklist: 25 questions and a weighted scorecard for evaluating any wholesale VoIP provider.
Frequently Asked
Questions about wholesale voice.
What resellers, call centers, and platform teams ask before choosing Rozper for wholesale voice.
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 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.