Carrier-Grade · A-Z Global Routes

Wholesale voice
termination services

The infrastructure that keeps global voice traffic moving — reliably, affordably, and fully compliant. Direct A-Z routes, transparent per-minute pricing, and STIR/SHAKEN compliance built in.

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Getting Started

What Is Wholesale Voice?

The bulk buying and selling of call minutes between telecom operators — resold at negotiated rates to businesses that send or receive high call volumes. Read our full guide to wholesale voice for a deeper breakdown.

01

Bulk, Not Retail

Minutes are traded between carriers in volume — not sold per seat. Low-volume teams start with SIP trunking instead.

02

A-Z Termination

One interconnect completes calls to virtually any destination worldwide — from “A” to “Z” — via Tier 1 partnerships.

03

Negotiated Rates

Pricing scales with your volume and destination mix, rather than a fixed per-user plan.

04

Built for Volume

Designed for carriers, resellers, BPOs, and platforms moving high call traffic daily.

Who It’s For

Who Uses Wholesale Voice Services

Wholesale voice isn’t a niche product — it underpins a wide range of businesses.

Carriers & Resellers
Businesses that need to fill gaps in their own network coverage or add capacity during peak demand — without renegotiating a full carrier agreement.
Call Centers & BPOs
Teams running high-volume outbound or inbound campaigns across multiple countries, where consistent answer rates and per-second billing matter most.
OTT Platforms & CPaaS Providers
Software companies that embed voice calling into their own product and need a white-label termination partner behind the scenes.
Multi-Site Enterprises
Organizations consolidating international calling across offices and branches under one predictable billing relationship.
Pricing

How Wholesale Voice Pricing Works

Pricing is one of the most misunderstood parts of wholesale voice. Two models dominate the market.

ModelHow It WorksBest For
Per-minuteYou pay only for minutes actually used, often with destination-specific ratesVariable or unpredictable call volumes
Per-channelYou pay a flat fee for a fixed number of simultaneous call pathsPredictable, high-volume traffic needing cost certainty

Least Cost Routing (LCR)

Least cost routing is the automated process of selecting the cheapest available path for each call that still meets a minimum quality threshold. A good wholesale provider blends LCR with quality monitoring so cost savings never come at the expense of call completion rates or clarity.

Lowest available costQuality threshold enforcedFully automated selection
Route Types

CLI vs. Non-CLI Routes

CLI (Caller Line Identification) routes preserve the original caller ID to the destination — critical when customers must recognize the number. Non-CLI routes strip or alter it, cost less, and risk being flagged. Confirm which type applies before signing — see our full guide to wholesale VoIP route types for quality metrics and provider criteria.

☎CLI Routes
✓Original caller ID preserved to the destination
✓Higher trust and stronger answer rates
✓Lower risk of being flagged or blocked
✓Ideal for business calls and contact centers
⚠Non-CLI Routes
✕Caller ID stripped or altered en route
✕Typically the cheaper per-minute option
✕Higher risk of being flagged or blocked
✕Confirm route type in writing before signing
VS
Quality & Compliance

Quality, Compliance & Fraud Protection

Cost matters, but not at the expense of call quality, regulatory standing, or fraud exposure.

STIR/SHAKEN and FCC Compliance
Look for FCC Robocall Mitigation Database registration and STIR/SHAKEN support, which verifies caller ID isn’t spoofed.
Avoiding Grey Routes
Grey routes bypass standard interconnect agreements — cheaper, but risk poor quality, blocking, and regulatory exposure.
Fraud Monitoring (IRSF Protection)
IRSF exploits premium-rate numbers for fraudulent traffic. Look for real-time anomaly detection and rate-limiting.
SOC 2 Type II
Annually audited
STIR/SHAKEN
Full attestation (A)
GDPR Ready
EU data residency
ISO 27001
Information security
BAA Capable
BAA available
PCI DSS
Level 1 compliant
Buyer's Guide

How to Choose a Wholesale Voice Provider

Not all wholesale voice providers are equal, even when their marketing sounds similar. Before committing, evaluate:

Network reach
Direct interconnects vs. resold capacity, and how many countries are truly "direct."
Quality metrics
Published ASR (Answer Seizure Ratio) and ACD (Average Call Duration) benchmarks.
Compliance credentials
FCC registration, STIR/SHAKEN, and regional regulatory alignment.
Pricing transparency
Clear rate decks without hidden fees or route substitution.
Support model
24/7 human support vs. ticket-only systems.
Onboarding speed
How quickly you can move from contract to live traffic.

Key Questions to Ask Before Signing

01Are your routes CLI or Non-CLI by default, and can I choose?
02What is your average ASR/ACD for my target destinations?
03Are you registered with the FCC and STIR/SHAKEN compliant?
04Do you offer both per-minute and per-channel pricing?
05What does onboarding and testing look like before full volume?

What Our Clients Say

Trusted by Carriers, Resellers & Enterprises

The right wholesale voice partner should be able to answer detailed questions about routing, pricing, and regulation without hesitation.

Week 1
Answer rate lift

"We switched our outbound campaigns over to their wholesale voice routes and saw our answer rates improve within the first week. Onboarding was fast, and their team actually picked up the phone when we had routing questions."

O
Operations Director
BPO Call Center
FAQ

Frequently Asked Questions

Everything you need to know about wholesale voice termination, routing, and pricing.

Wholesale voice termination is the bulk transfer of phone calls between telecom carriers so that calls can be completed to any destination worldwide, typically sold at volume-based rates to businesses like carriers, call centers, and platforms rather than individual consumers.
A-Z termination means a provider can complete calls to virtually any destination in the world, from A to Z, using direct interconnects or Tier 1 carrier partnerships across many countries.
CLI routes preserve the original caller ID all the way to the destination, while Non-CLI routes strip or alter caller ID. CLI routes generally cost more but offer better call answer rates and lower risk of being blocked.
Wholesale voice is typically priced per-minute, where you pay only for minutes used, or per-channel, where you pay a flat fee for a fixed number of simultaneous call paths. The right model depends on how predictable your call volume is.
STIR/SHAKEN is a call authentication framework that verifies caller ID hasn't been spoofed. Providers that support it help reduce call blocking and labeling as spam, and compliance is increasingly expected by regulators in the US and other markets.
Wholesale voice is used by carriers and resellers filling network gaps, call centers and BPOs running high-volume campaigns, OTT and CPaaS platforms embedding voice calling into software, and multi-site enterprises consolidating international calling.
Grey routes are unauthorized or unofficial call paths that bypass standard interconnect agreements. While often cheaper, they carry risks including poor call quality, sudden call blocking, and regulatory exposure.
Onboarding timelines vary by provider, but a well-run process typically includes contract setup, route testing, and a gradual traffic ramp-up, often completed within days to a few weeks depending on volume and destination complexity.

Get Started with Wholesale Voice

Ready to see wholesale voice pricing for your specific traffic? Start a trial or view pricing to get transparent A-Z rates matched to your call volume and destinations.

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