Multi-Tenant PBX & Unified Communication Solution
Multi-Tenant PBX
Designed to Scale Your
Multi-Customer Business
A comprehensive solution designed for service providers — enabling efficient deployment, centralized management, seamless integrations, customizable branding, and scalable monetization to drive sustainable growth.
9000+
Providers are scaling faster with Yeastar.
A Complete Multi-Tenant PBX Ecosystem — Built for Provider Growth
Instant Deployment & Scalability
Spin up multiple PBX tenants on demand — no per-tenant license, just add extensions as you grow.
Simplified Administration
Administer all tenants from one platform. Simplify operations, reduce workload, and cut support costs for you and your clients.
Integrations & APIs
Seamlessly connect with SIP trunks, CRMs, billing, and more — adapt to diverse client setups with ease.
All-in-One PBX Features
Packed with powerful UC and Contact Center features your clients will actually use — simple to deploy, easy to master.
Flexible Hosting
Host in Yeastar data center or yours. Full flexibility, control, and in-house support for your best-fit go-to-market.
White-Label Ready
Put your brand front and center. Build loyalty, grow recognition, and scale your own service identity.
What is Multi-Tanent PBX?
Traditional PBX models require one instance per PBX system — costly and hard to scale for providers with a large client base. Some vendors offer a multi-tenant PBX on a shared instance, but this often comes with limitations: tenants may lack proper resource isolation, customizability is restricted, and issues in one tenant may affect others — making management, scaling, and migration more complex over time.
Yeastar takes it further.
Our multi-instance PBX solution creates fully isolated PBX instances on a centralized hub server — each instance is customizable, secure, and centrally managed, while sharing core resources such as concurrent calls and extensions between instances. It combines the best of both worlds: instance-level data isolation & customization, operational efficiency, and cost-effectiveness.
Centralized Management of Multi-Tenant PBX Made Simple
Yeastar Central Management (YCM) is your control center for remote deployment, maintenance, and monitoring. It helps reduce support overhead, speed up response, and scale service with less manual work.
Built-In Tools & Integrations That Make Your Clients Stay
PBX and Call Center Features
Deliver just-right features your clients will actually use — from call handling and IVR to voicemail, SMS and advanced call center tools — all easy to set up and manage even for non-tech teams.
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Seamless Integrations & APIs
Easily integrate with popular messaging channels, CRMs, Microsoft 365, Teams, databases, and vertical platforms like hotel PMS even local CRMs to match each client’s daily workflow without custom development. Learn more
Your Brand. Your Margin. Your Way. — Backed by Yeastar
We’re not just offering a product — we’re offering a PBX business foundation.
Trusted by
Provioders Worldwide
Ready to Build Your
PBX Business?
Contact Us
Common Questions about Multi-Tenant PBX
What's the difference between Multi-Tenant and Multi-Instance PBX?
Multi-Instance means hosting independent instance for each PBX system, with isolated environments but higher resource usage and complexity.
Multi-Tenant runs multiple fully-isolated PBXs on one shared instance. It simplifies management, reduces cost, and with scale ability.
Yeastar’s Approach: We separate each tenant on one PBX Hub within one server. Every client gets a fully independent PBX with enterprise-grade features, secured environments, and centralized management—streamlining delivery without compromising isolation.
Can I integrate local platforms with the Yeastar PBX system?
Absolutely. Beyond native integrations with leading platforms like Microsoft Teams, WhatsApp, Salesforce and more, Yeastar also offers a robust suite of open APIs. This allows you to seamlessly connect with your preferred local CRM, billing, or communication platforms — whether for a single PBX or multiple tenants. The integration is flexible and scalable, helping service providers localize faster, enrich client services, and build stronger customer loyalty.
Can I use my own SIP trunk and customize the call flow?
Yes. Yeastar support bring your own carriers (BYOC). You can bring your own SIP trunk, manage phone numbers, and build your own call flow logic per tenant. Unsure where to begin? Check our list of certified global SIP trunk providers to ensure compatibility and optimal quality.
How reliable is Yeastar’s Multi-Tenant PBX system?
Yeastar’s system is built on a high-availability architecture with automatic failover, and multi-layer security. Whether hosted by Yeastar or self-deployed, it ensures carrier-grade uptime and resilience—even under heavy traffic. Read More