If you run an MSP, a VoIP reseller or a small carrier, a white label softphone is usually the first part of your phone service that a customer actually touches. It is the app on their laptop and their mobile phone that rings, transfers calls and plays back voicemail. When that app carries your name instead of a vendor’s name, the customer relationship stays with you.
This matters more now that a lot of calling happens away from a desk. In one Pew Research Center survey (fieldwork in October 2024), 75% of employed adults whose job can be done from home said they work at least some of the time.
We compared seven platforms that let you put your own brand on that app. Some of them are a branded softphone layer that sits on top of the phone system you already run. Others are full white-label UCaaS stacks that also do quoting, billing, and provisioning for you. Working out which of those two you need is most of the decision, so we explain that first.
What a white label softphone is, and where white label UCaaS starts
A softphone is a calling app that replaces a desk phone. It runs on Windows, Mac, iOS, Android or in a web browser, and it registers to a phone system using SIP (Session Initiation Protocol, the standard most business phone systems use to set up calls). “White label” means you, the reseller, rebrand it. The app name, icon, colors, and login domain are yours, and your customer never sees the company that built it.
White label UCaaS (unified communications as a service) is the bigger package. It bundles voice, video, messaging, and often fax, SMS, and contact center tools into one service you sell under your name. Many white-label UCaaS vendors also handle the back office:
- Quote-to-cash: the chain of steps from sending a customer a quote to collecting the money, including order entry, activation, invoicing and telecom tax.
- Auto-provisioning: setting up users, phone numbers and devices automatically instead of typing SIP credentials by hand.
- PSA integration: a link to the professional services automation tool an MSP already uses for tickets and billing, with ConnectWise Manage being the one buyers name most often.
So the dividing line is simple. A branded softphone layer gives your customers a better app on your existing PBX. A full-stack platform gives you the PBX, the app, and the billing in one place. Several platforms in this space are built on NetSapiens, a multi-tenant PBX platform that many wholesale providers license and then resell.
The market these partners sell into is mostly small companies. The U.S. has 36,207,130 small businesses, according to the SBA Office of Advocacy, and those are the businesses most likely to buy phone service from their IT provider rather than directly from a carrier.
How we compared these white label VoIP platforms
We scored every platform on the same four things:
- Branding depth of the app. Can you change the name, icon, colors, and domain, and can you publish it in the app stores under your own developer account?
- How much back office comes with it. Quoting, billing, tax, and provisioning, or none of those.
- Fit with what you already run. Does it work on your current PBX and carriers, or does it expect you to move?
- What can be checked in public. Published pricing, published feature lists, and ratings on review sites.
Ratings are reported as we found them on G2 or Capterra, with the review count, because several of these vendors have very few reviews. Where a platform has no rating on either site, we say so and give the closest public score. We did not give credit for margin claims, since none of them can be checked from outside the vendor.
The 7 white label softphone and UCaaS platforms
1. iotum Communicator
Best for: MSPs, carriers and PBX providers that already run a phone system (NetSapiens or another SIP platform) and want a white-label softphone with video, messaging and webinars under their own brand.
iotum Communicator is a white-label softphone and collaboration app that service providers rebrand and resell to their own customers. Your end users install a SIP softphone on iOS, Android, Windows, Mac, or the web, and it registers to the PBX you already operate, so there is no back-end migration and no rip-and-replace. The vendor sells only through partners and does not target end users itself.
The vendor’s own pitch is plain: keep NetSapiens on the back end and put a better app on the front end. That makes it a natural shortlist pick for providers who are happy with their PBX but keep hearing complaints about the app their customers use.
What you get:
- Custom app name, icon, color scheme and domain
- HD video meetings included in the base offer (screen share, recording, waiting rooms), not sold as an add-on
- Team messaging with channels, direct messages, threads and file sharing
- Webinars and Drive file storage inside the same app, with no extra seat licenses for webinars
- REST-style endpoints and webhooks for click-to-call, auto-provisioning and CRM or ticketing links
- VoIP push notifications so the app rings on iOS and Android when it is in the background
- Onboarding help, then 24/7 support by phone, email and chat
Rating: 5.0 out of 5 on Capterra (19 reviews, for the vendor overall).
Pricing: Wholesale, per seat. One rate covers the branded softphone, video, messaging and webinars, and you set your own resale price. There is no public rate card, because each reseller packages it differently.
Where it falls short: It is a front-end layer, not a full back office. There is no built-in quote-to-cash or telecom tax engine of the kind Virtue and RingLogix offer, so you still need your own PBX and your own billing system. HIPAA support is described as deployment-dependent, so a reseller with healthcare clients should confirm the setup in writing.
2. SkySwitch
Best for: MSPs and VARs that want a mature wholesale white-label UCaaS platform with the back office and a ConnectWise link already in place.
SkySwitch, a BCM One company based in Blue Bell, Pennsylvania, is a white-label UCaaS platform that MSPs, VARs, and system integrators brand and resell as their own. Its UC Client app runs on web, desktop, and mobile, and it covers calling, business SMS, fax, chat, presence, and video meetings with screen sharing. A partner can run much of the business from inside ConnectWise Manage: the integration imports PBX usage data, links new customers to ConnectWise companies in one click, and embeds the SkySwitch reseller dashboard with single sign-on.
What you get:
- Branded UC Client for web (no install), desktop, and mobile
- Visual voicemail, call park, transfers, shared SMS numbers and 10DLC compliance for texting
- Self-service provisioning plus customer billing and activity reports
- ConnectWise Manage integration for usage data and the reseller dashboard
- Contact center, virtual fax and voice APIs as extra modules
- Named a white-label leader in the 2024 Frost and Sullivan Radar for North American UCaaS providers
Rating: 4.8 out of 5 on Capterra (10 reviews).
Pricing: Wholesale, per seat, quoted per partner. Capterra lists it as “contact vendor,” with no free trial.
Where it falls short: The softphone is one module inside a large platform, so you get less say over how the app itself looks and behaves than you would with a softphone-first product. With no published rates, you cannot compare costs before a sales call.
3. Viirtue
Best for: Partners who want quote-to-cash, usage billing, and a choice of two softphone engines inside one white-label VoIP platform.
Viirtue is a white-label UCaaS and VoIP platform for MSPs, IT providers, and telecom resellers, built on NetSapiens, and it does not sell directly to end customers. The thing that stands out is the softphone: you pick either a NetSapiens-native engine or an Acrobits-based engine, then pick custom branding (your logos, colors, and your own app store listings) or neutral branding that Viirtue publishes and maintains. Users log in through the partner portal and the app provisions itself, so nobody types SIP passwords.
What you get:
- Two softphone engines, switchable, with auto-provisioning by portal login
- Single sign-on with Apple, Google and Microsoft 365 accounts on the NetSapiens-native engine
- ViiBE billing for usage rating, invoicing and payments, free for partners
- Hosted PBX, SIP trunking and AI Voice Agents that act as extensions on the phone system
- AI call transcription, sentiment scoring and summaries
- 30-day onboarding and 24/7 partner support
Rating: 4.8 out of 5 on G2 (7 reviews).
Pricing: G2 lists wholesale per-minute pricing at 0.01.Seatpricingisquoted.Forcustom-brandedappsyoualsopayApple(99 per year) and Google Play ($25 one-time) for your own developer accounts.
Where it falls short: Full custom branding means you own the app store accounts, certificates, and renewals. Neutral branding avoids that work, but the app is then published under Virtue’s store accounts and not yours. The review base is small.
4. RingLogix
Best for: Smaller MSPs that want one system for quoting, ordering, activation, and billing, with branded apps for their customers.
RingLogix is a white-label UCaaS provider whose RingOS platform is built around quote-to-cash for MSPs. A partner sends a quote, takes the order and activates the service in a few clicks, and the built-in billing charges subscriptions, sends invoices and processes credit cards. End users get white-label VoIP calling apps for Android, iOS, and WebRTC, and the partner’s own logo and prices sit on top. The company made the Inc. 5000 list of fast-growing private companies in 2023.
What you get:
- RingOS quoting, online ordering and service activation
- Subscription billing, invoicing and card processing in the same system
- Your logo on the platform and your own retail pricing
- IVR, call recording, call monitoring and real-time dashboards
- Android, iOS and WebRTC apps for users
- Partner quotes include vendor-reported gross margins of up to 70% on branded services
Rating: No G2 or Capterra rating found. Software Finder shows 5 out of 5, but from a single review.
Pricing: Custom quote. There is no published per-seat rate, and partners set their own retail prices.
Where it falls short: The value is the back office. If you already bill out of a PSA, part of what you pay for duplicates what you have. The calling apps are not as deeply customizable as a softphone-first product, and the public review base is very thin.
5. White Label Communications
Best for: MSPs that want a ready-to-run white label VoIP business with U.S.-based support behind them and little engineering of their own.
White Label Communications (WLC) is a private-label telecom provider in Exton, Pennsylvania, operating since 2010. It sells UCaaS, CPaaS, contact center, e-POTS (replacement for old copper phone lines), telecom tax compliance, and network monitoring, all under the partner’s brand, and it sells only through resellers. Its “Business in a Box” white-label VoIP package is aimed at partners who want to launch quickly without custom development. The branded UC client puts a web phone, SMS, video, chat, visual voicemail, an operator console, presence, and contacts in one app.
What you get:
- Branded UC client with web phone, chat, video, and operator console
- Device auto-provisioning, a porting manager and a sales quote tool
- Telecom tax integration and geo-redundant data centers
- APIs and webhooks for integrations
- 24/7 support staffed by U.S.-based personnel
- WLC University training on billing, provisioning, porting, and sales
Rating: No G2 reviews yet. BestCompany shows 3.0 out of 5 from 4 reviews, split between 5-star and 1-star.
Pricing: No public rate card. Reviewers describe multi-year contracts (one cited $250 per month over two years) plus regulatory filing costs.
Where it falls short: Reviewers mention a dated interface and a contract that is hard to leave early. FCC and USAC registration and filings can land on the partner, and those costs were not always clear up front.
6. Telinta
Best for: Resellers and small carriers that want to keep their own carriers and phone numbers and only need switching, billing and branded apps.
Telinta is a hosted switching and billing service that lets you sell a full UCaaS lineup “with your own brand, and your own prices.” That lineup includes hosted PBX, SIP trunks, voice and video calling, WebRTC click-to-call, fax-to-email, audio conferencing and IVR. Its brandable softphones cover Android and iOS on mobile and Windows, Mac and Linux on desktop, which makes it a rebrandable softphone option with wider desktop coverage than most. Billing runs in real time, with bundles, volume discounts, one-time charges and promotions.
What you get:
- Brandable mobile softphone (Android, iOS) and desktop softphone (Windows, Mac, Linux)
- Hosted PBX, SIP trunking and WebRTC click-to-call
- Real-time billing with plans, bundles and promotions
- Multi-language IVR and voicemail-to-email with transcription
- Freedom to use any carrier for DIDs, termination and SMS
Rating: No G2 or Capterra rating found.
Pricing: Volume-based wholesale with no published figures. Agreements are month to month, with no time-bound contract.
Where it falls short: Telinta does not supply phone numbers or call termination, so you have to source carriers, DIDs and SMS routes yourself. That suits a telecom operator, but it is a lot of extra work for an IT-focused MSP with no carrier relationships.
7. Wazo
Best for: MSPs with developers on staff who want an open-source, API-first base for building their own white-label UCaaS service.
Wazo is an open-source communications platform with a REST API for every function, plus a commercial Wazo Enterprise Unified Communication suite aimed at operators serving small and mid-size businesses. The enterprise suite gives users voice, video, and instant messaging through web, desktop, and mobile apps. Because the code is open, a team can self-host it, change it, and build its own branded calling app on top without waiting on a vendor roadmap.
What you get:
- Open-source core with no licensing fee
- REST APIs for calls, users, routing, and messaging
- Web, desktop, and mobile apps in the enterprise suite
- Self-hosted or on-premises deployment for full data control
- No lock-in to a single vendor’s hosting
Rating: No reviews yet on Capterra (0 reviews for Wazo Enterprise Unified Communication).
Pricing: The open-source core is free. Capterra shows the enterprise suite from CA$1 per month as a flat rate, which looks like a placeholder; real enterprise pricing is quoted per partner.
Where it falls short: Setup and upkeep need real DevOps skills. The developer community and the list of ready-made integrations are smaller than the bigger platforms, and international calling may need extra SIP trunk providers.
SDKs, APIs and how far a branded softphone can be customized
Branding comes in levels, and vendors mean different things by the same word. The lightest level is a logo and colors inside someone else’s app. The next is your own app name, icon and login domain. The deepest is a white label softphone published under your own Apple and Google developer accounts, so the store listing shows your company as the publisher.
If you want to change how the app behaves as well as how it looks, you need APIs or an SDK (software development kit, a set of code libraries a developer uses to build features into an app):
- iotum Communicator exposes REST-style endpoints and webhooks for click-to-call, auto-provisioning and routing, and the same vendor sells separate video, voice and chat SDKs for embedding calls in your own product.
- Wazo is API-first from the ground up, which is why it suits teams who want to build their own client.
- Viirtue offers an Acrobits SDK-based engine as one of its two softphone options.
- SkySwitch sells voice APIs as a module, and Telinta includes WebRTC click-to-call.
Connectivity: SIP trunks, PSTN, SBCs and codecs for a white-label VoIP service
A softphone only works as well as the network path behind it, so a few terms are worth knowing before you sign.
- SIP trunk: a virtual phone line that connects a PBX to a carrier over the internet.
- PSTN: the public switched telephone network, meaning ordinary phone numbers and landlines. Your SIP trunk carrier is what connects your users to it.
- SBC (session border controller): a network device or service that sits at the edge of a phone network. It handles security, NAT traversal (getting calls through office routers), and translation between systems.
- Codec: the method used to compress audio or video. Common audio codecs are G.711 for plain phone quality and Opus for wideband audio on poor connections. On the video side, iotum Communicator’s underlying video engine uses VP9-SVC, which adjusts quality to each user’s bandwidth.
For a branded softphone, check four things: that the app supports SRTP and TLS so calls and sign-in are encrypted, that it uses push notifications so mobile users do not miss calls, that it registers cleanly through your SBC, and that it negotiates a wideband codec. Telinta is the outlier here, since you bring every carrier yourself; the others either supply connectivity or work with what you already have.
What white label UCaaS costs an MSP
Almost no vendor in this space publishes a full rate card, so compare pricing models before you compare numbers. You will see four common models:
- Wholesale per seat: a monthly cost per user that you mark up (iotum Communicator, SkySwitch).
- Per minute plus platform fees: usage-based wholesale (Virtue lists $0.01 per minute on G2).
- Contracted platform plus usage: a fixed monthly commitment over a multi-year term (reported by White Label Communications customers).
- Free core plus paid support: open source with optional enterprise licensing (Wazo).
Then add the costs that do not show up on a quote. Your own app store accounts cost $99 per year with Apple and $25 once with Google. Telecom tax and FCC or USAC filings can fall on you. Also check whether video, messaging and webinars are in the per-seat price or sold as add-ons, because that changes your margin more than a small difference in the base rate.
How to choose a branded softphone for your MSP
Start with what you already own. If you run NetSapiens or another SIP PBX that works, and your customers mainly complain about the app, a softphone layer such as iotum Communicator fixes the visible problem without a migration. If you have no PBX yet and no billing system, a full stack such as SkySwitch, Viirtue, RingLogix or White Label Communications gets you to market with fewer moving parts.
Then think about who will answer the phone when something breaks. Support staff are not easy to add: the Bureau of Labor Statistics outlook projects about 48,700 openings for computer support specialists each year, on average, from 2025 to 2035. A vendor with 24/7 partner support and in-app diagnostics saves you hiring.
Teams that already live inside ConnectWise should weigh SkySwitch’s integration heavily. Resellers with their own carrier deals will get more freedom from Telinta. And when you have developers on staff and want total control, Wazo is the base to build on.
Before you sign anything, run one test customer through the whole cycle: quote, provisioning, first call on mobile, a port-in, the first invoice, and a support ticket. That one exercise shows more about a white label softphone vendor than any feature list.
Frequently asked questions
Is a white label softphone the same as white label UCaaS?
No. A white label softphone is the calling app your customers use, branded with your name. White label UCaaS is the full service behind it, usually including the PBX, phone numbers, video, messaging, and often billing. Some vendors sell both; some sell only the app layer.
Is iotum Communicator a full UCaaS platform?
It is a branded front end that bundles softphone, video meetings, team messaging, webinars, and file storage in one app, and it runs on a PBX you already have. It does not replace a back office with quote-to-cash or telecom tax tools, so most partners pair it with their existing PBX and billing.
Which white-label UCaaS platforms let me brand the softphone completely?
Virtue (with custom branding under your own store accounts) and iotum Communicator (your app name, icon, colors, and domain) go furthest among the ready-made options. Wazo lets you go further still, but you build the app yourself.
Do I need to replace my PBX to offer a branded softphone?
Not always. A softphone layer registers to your existing SIP PBX, including NetSapiens, so your phone numbers, routing, and billing stay where they are. Full-stack platforms usually expect you to move customers onto their PBX.
The bottom line
The real choice is between fixing the app your customers see and replacing the whole system behind it. If your phone system and billing already work, a full-stack migration buys you a lot of change for little visible gain. If you are starting from nothing, a full stack is the faster path.
If you would rather keep your PBX and billing and simply give customers a better branded softphone, iotum Communicator is built for MSPs and carriers in that position: one wholesale per-seat rate covers calling, video meetings, team chat and webinars, with your logo, colors and domain on every screen.
