Business Summary
GranSun PBX is a white label PBX distributor based in Wichita, Kansas. It gives managed service providers, IT service providers, telecom agents and consultants a multi-tenant, cloud-hosted VoIP phone platform they can sell under their own brand, while GranSun supplies the platform, provisioning tools, licensing and partner support. Partners pick the level of involvement that fits: White Label Elite runs on a dedicated server under the partner's own domain and branding, White Label Pro shares optimized infrastructure on mywlpbx.com with custom phone logos and low overhead, and the GranSun Agency program lets referral partners earn recurring commission while GranSun quotes, sets up and supports the end users. Every model bills through Clearfly, so partners set their own margins and Clearfly handles sales and telecom taxes, fees and payments. The platform is carrier-grade and open. Businesses on it get auto-attendants, call queues, ring groups, call recording, voicemail and fax to email, find me/follow me, time-based routing, conference bridges, softphone and desktop apps, CRM integration and call analytics. Version 8 adds AI voice agents, live transcription and AI voice greetings through a bring-your-own-key AI Hub at no charge from GranSun. Licenses come in Advance, Basic, Low Usage and Internal tiers, and GranSun sells and rents preconfigured GranSun-branded desk phones (GS2W, GS4 and GS6), Grandstream Wi-Fi and conference phones, ATAs, FXS gateways, PoE switches and Wi-Fi access points for zero-touch deployment. It provisions hundreds of certified devices from Yealink, Poly, Grandstream, Fanvil, Cisco, Snom and others, so customers are never locked into proprietary hardware. GranSun grew out of its founder's decades in legacy telecom and managed services, and was built as the open, reliable PBX the team couldn't find anywhere else.
Services
- White label hosted PBX platform
- Multi-tenant cloud VoIP platform for MSPs and ITSPs
- White Label Elite dedicated-server partner program
- White Label Pro shared-infrastructure partner program
- GranSun Agency referral partnership with recurring commission
- Partner onboarding, training and tier-1 support
- End-user remote support desk (Agency model)
- PBX licensing: Advance, Basic, Low Usage and Internal
- Preconfigured GranSun-branded IP desk phones (GS2W, GS4, GS6)
- Hardware sales and rentals: phones, ATAs, FXS gateways, PoE switches, Wi-Fi
- Partner demo kit
- Zero-touch device provisioning for hundreds of certified phones
- AI voice agents, live transcription and AI greetings (bring your own API key)
- Softphone, desktop and mobile apps (Communicator Next)
- Video conferencing, screen sharing and team chat
- Business SMS and company messaging
- Web fax and fax to email
- Call recording, call analytics and reporting
- Auto-attendants, call queues and ring groups
- Billing through Clearfly (taxes, fees and payments)
Map & Directions
Get directionsVideos
Frequently asked questions
What is GranSun PBX?
GranSun is a white label PBX distributor based in Wichita, Kansas. It provides a multi-tenant, cloud-hosted VoIP phone platform that MSPs, IT service providers, agents and consultants resell to their own business clients, along with partner support, licensing and preconfigured hardware.
Who is GranSun for?
Managed service providers, internet telephony service providers, IT consultants and telecom agents who want to add business phone service to what they sell. Partners range from referral agents who bring the customer relationship to established MSPs who run a dedicated server under their own brand.
What partnership models does GranSun offer?
Three. White Label Elite gives you a dedicated server, your own domain and full branding. White Label Pro runs on shared infrastructure at mywlpbx.com with custom phone logos and low overhead. The GranSun Agency model is a referral partnership where GranSun handles quoting, setup and end-user support and you earn recurring commission for the life of the account.
How long does setup take?
Agency and White Label Pro portals are typically ready within 24 to 48 hours. White Label Elite requires a dedicated server deployment, usually 3 to 5 business days depending on configuration.
Can I switch partnership tiers later?
Yes. Many partners start on Agency or Pro and move to the Elite dedicated server model as their seat count grows and they want more control.
Who handles billing for my customers?
All partnership models bill through Clearfly. You keep the customer relationship and set your own margins. Clearfly manages sales tax, telecommunications tax, fees and payments to GranSun and to your company after clients settle their invoices.
Which phones work with GranSun PBX?
The platform is open and provisions hundreds of certified devices from Yealink, Poly, Grandstream, Fanvil, Cisco, Snom, Panasonic, Sangoma, Gigaset and others, plus ATAs, gateways and DECT phones. GranSun also sells its own preconfigured GS2W, GS4 and GS6 desk phones.
What license options are available?
Advance includes the softphone with desktop and mobile apps plus full voicemail and transcription. Basic covers essential voicemail without the apps. Low Usage suits breakrooms, hotel rooms, assisted living and analog devices. Internal is for door phones, paging and other devices with no outbound calling.
Does GranSun PBX include AI features?
Yes. Version 8 adds AI voice agents, live transcription, voicemail transcription and AI voice greetings at no charge from GranSun. You connect your own provider API key (OpenAI, Deepgram, Google, AWS Transcribe, xAI, Whisper or ElevenLabs) through the built-in AI Hub and pay only the provider's usage rates.
Do you provide training and support?
Yes. White Label partners get a deep-dive onboarding session on managing the PBX, provisioning phones and handling tier-1 requests, plus self-paced training and a support portal with a knowledge base. Under the Agency model, end users get GranSun's full remote support desk.
Want to know how your own website shows up in AI answers?
Get my free AI score
