Last updated 20 August 2026.
Wholesale VoIP providers sell voice service in bulk to businesses that resell it, rather than to the business that makes the calls. For an MSP the practical difference is ownership: you set retail pricing, you bill the customer, and you keep the margin. Reseller margins in white label models commonly sit between 50% and 70%, according to SkySwitch's own 2026 guidance.
That is the easy part. The harder part is that most comparison articles in this category are written by one of the providers being compared, and they all stop at the same place: rates, features, redundancy. None of them cover the things that actually cost an MSP money eighteen months in.
This article covers those. It also names where RingLogix is a poor fit, because a comparison that never says no is a brochure.
A wholesale VoIP provider supplies voice services at carrier rates to partners who resell them. The provider runs the network, the switching and the platform. The partner owns the customer relationship, sets the price and issues the invoice.
Three models get grouped under the same label, and they are not interchangeable:
If you cannot answer "who does the end customer have a contract with", you are probably in an agent model regardless of what the programme is called.
Below is the comparison most articles in this category do not publish. Rates are deliberately absent, because every wholesale rate is negotiated on volume and any published figure is out of date within a quarter. What matters more is the structure around the rate.
| What to compare | Why it decides the deal | What to ask for in writing |
|---|---|---|
| Model: carrier, white label or agent | Determines whether you own the customer or rent them | Who holds the end-customer contract |
| Billing and invoicing | If the platform does not bill, you buy a separate billing system and reconcile by hand | Whether invoicing, proration and taxes are native |
| Telecom tax and regulatory fees | USF, E911 and state-level surcharges are calculated per jurisdiction and are the most common source of unexpected margin loss | Who calculates, files and remits |
| Contract exit terms | The clause nobody reads until they want to leave | Notice period, termination fee, and what happens to your numbers |
| Number porting | Slow porting stalls your onboarding, not the provider's | Typical port timeline and who manages rejections |
| Support model | Determines whether your technician or theirs talks to your customer | Named tiers, response times, and whether support is white labelled |
| Provisioning and quoting | Manual provisioning quietly caps how many customers one engineer can carry | Whether quoting and activation are self-service |
| Platform roadmap | AI voice, SMS and compliance features arrive on the provider's schedule, not yours | What shipped in the last twelve months |
If the provider bills your customer directly, you are an agent. If you bill and the provider invoices you at wholesale, you are a reseller. This single answer determines whether the customer base is an asset you can sell or a commission stream that ends when the contract does.
Voice carries taxes that ordinary software does not: federal USF contributions, state and local surcharges, E911 fees, each varying by jurisdiction. Calculating these manually is where reseller margin quietly disappears. Ask whether tax is calculated, filed and remitted by the platform, or merely estimated on the invoice.
Notice periods, early-termination fees and the treatment of ported-in numbers all vary by agreement, and none of them are usually in the pricing schedule you get sent first. Ask for the termination clause in writing before you compare rates, because it is the clause that determines your negotiating position in year three.
White label ends at the point your customer opens a ticket. Ask specifically whether support is delivered under your brand, and what response times are contractually committed rather than aspirational.
Grouped by model rather than ranked, because the right answer depends on whether you want to run a platform or use one. Positioning below is taken from each provider's own public material, except where noted.
Bandwidth positions on owned network coverage across 65+ countries and is a common choice for platforms that need direct carrier access. Telnyx is characterised as API-first in Viirtue's 2026 ranking, suiting teams that want programmatic control. Skyetel and Flowroute both position on carrier-grade termination and per-minute economics. All four assume you bring your own platform, billing and support.
Best for: MSPs with engineering capacity who already run a PBX platform. Poor fit for: MSPs who want a service to sell next quarter.
SkySwitch and Viirtue both supply full white label stacks to the MSP channel, and both publish their own comparison content in this category. RingLogix sits here too, supplying RingOS with quoting, provisioning, billing and telecom tax in one platform.
Best for: MSPs adding voice as a branded service line without building infrastructure. Poor fit for: anyone who wants raw termination at the lowest possible per-minute rate.
Worth stating plainly, since this is our article. RingLogix is a poor fit if you want wholesale minutes only and already run your own switching, if you need a specific carrier's network for regulatory reasons, or if you want to sell through an agent model and avoid billing entirely. In each of those cases one of the carriers above is the better answer.
Moving from agent commissions to reselling is not only a pricing change. You begin issuing the invoice, you take first-line support, and you become the party the customer calls at 4pm on a Friday. That is the trade: the margin improves and the operational load moves to you. It is also why billing and tax automation are worth more than a slightly better per-minute rate, because those two absorb most of the load you just took on.
Retail VoIP is sold to the business that uses it, at a published per-seat price. Wholesale VoIP is sold in bulk to a partner who resells it, at rates that leave room for the partner's margin. The buyer is different, and so is who owns the customer relationship.
White label models commonly produce 50% to 70% gross margin, a range SkySwitch also publishes in its 2026 guidance. Actual margin depends on how much of billing, tax and first-line support the platform absorbs, because each of those is a cost you carry if it does not.
No, if you choose a white label platform. Yes, in effect, if you buy from a wholesale carrier, because you then need switching, provisioning, billing and support of your own.
It depends on the provider and it is worth confirming in writing. Some white label platforms calculate, file and remit telecom taxes as part of the service. Wholesale carriers generally do not, leaving the reseller responsible for jurisdiction-level compliance.
Number portability is a regulatory right in the US, so in principle yes. What varies is how much friction the agreement adds. Ask before signing how ported-in numbers are treated on termination and what the port-out process is.
With a white label platform, activation can happen in days because the infrastructure already exists. Building on a wholesale carrier is a project measured in months, since you are assembling the platform yourself.
The provider comparison matters less than the model decision underneath it. Decide first whether you want to own the customer and carry the operational load, or refer the customer and take a commission. Once that is settled, the shortlist narrows to three or four names and the questions above will separate them faster than any feature grid.
If you want to see how the white label model works in practice – quoting, provisioning, billing and telecom tax in one platform – the RingLogix partner programme is the place to start.