Build Your Telecom
Operator in the Cloud.

Launch a carrier-grade Cloud IMS Platform with native VoWiFi without the capital burden of traditional mobile infrastructure. VoiceBuy empowers MVNOs and cloud startups to deliver seamless WiFi Calling, integrated with any SIP-based softswitch or our end-to-end native ecosystem.

Legacy Infrastructure is Halting Innovation.

Building a mobile operator has historically required massive capital expenditure, rigid hardware dependencies, and complex SIP application workarounds. For modern MVNOs, VoIP providers, and cloud telecom startups, speed to market and frictionless user experiences are the ultimate competitive advantages.

Supported by WESY S.A.S France, VoiceBuy eliminates the hardware bottleneck. We provide a completely cloud-based IMS architecture that enables true Native WiFi Calling directly from the smartphone dialer. You maintain total control over your business logic and subscriber identity; we handle the carrier-grade network.

Architected for Scale
and Convergence.

01 // Native VoWiFi & Identity

Native WiFi Calling: Enable subscribers to make and receive calls directly from their smartphone’s native dialer over WiFi—zero clunky SIP apps required.
eSIM, USIM & ISIM Ready: Architected for modern subscriber identity environments, supporting seamless provisioning and secure, SIM-based IMS authentication.
Future-Proof Network: Deploy a mobile-first telecom experience built specifically to support advanced cloud architectures and next-generation protocols.

02 // Native VoWiFi & Identity

Agnostic Integration: Connect your IMS Cloud seamlessly with your existing Class 4 or Class 5 SIP-based softswitch using standard SIP trunking.
Intelligent Routing: Leverage IP-based authentication, CLI-based subscriber identification, and custom routing logic entirely within your current environment.
Zero Vendor Lock-In: Upgrade your mobile capabilities instantly without ripping out your established billing or routing infrastructure.

03 // Native VoiceBuy Synergy

End-to-End Ecosystem: Pair the IMS Cloud with the VoiceBuy Softswitch to create a fully integrated, turnkey telecom operator platform.
Real-Time Charging: Execute sub-second subscriber balance checks and CLI-based charging logic precisely before call routing occurs.
Automated DID Management: Instantly assign numbers, manage complex routing paths, and connect subscribers to active telecom services dynamically.

04 // API-Driven Multi-Tenancy

Wholesale & White-Label: Host multiple distinct telecom brands, MVNOs, or enterprise clients on a single, securely partitioned IMS cloud instance.
Total Automation: Automate subscriber activation, SIM provisioning, and account control entirely through robust, developer-friendly APIs.
Frictionless Scalability: Expand your multi-tenant capacity instantly without deploying new physical nodes or disrupting active services.

Engineered for Scale.
Built for Control.

Manage complex subscriber identities, multi-tenant operators, and deep network integrations from an intuitive, centralized command environment.

Global Command Center:
Monitor active subscribers, VoWiFi traffic, and multi-tenant performance across your entire IMS network at a glance.

Identity Provisioning: Seamlessly manage eSIM/USIM profiles, allocate Global DIDs, and activate user services via visual interface or API.

Softswitch Synergy: Configure secure SIP trunking, map real-time billing integrations, and define custom routing rules effortlessly.

Ready to Launch Your Cloud
Telecom Operator?

VoiceBuy IMS Cloud provides the agile infrastructure required to build, manage, and scale a modern WiFi Calling network.

Frequently Asked Questions (FAQs)

What softswitches and billing systems are compatible with the VoiceBuy Cloud IMS Platform?

Our Cloud IMS core is completely network-agnostic. It integrates seamlessly with any standard Class 4 or Class 5 SIP-based softswitch using industry-standard SIP trunking protocols. Because we adhere to strict open-standards architecture, you can maintain your existing billing (BSS/OSS) and routing infrastructure without experiencing vendor lock-in.

How does Native VoWiFi (WiFi Calling) work without a dedicated mobile app?

Unlike legacy VoIP solutions that require subscribers to download custom, battery-draining SIP clients, VoiceBuy leverages the smartphone’s built-in, native dialer. The platform authenticates the subscriber securely via network-level protocols (using eSIM, USIM, or ISIM identity), allowing users to make and receive crystal-clear calls over any WiFi network exactly as they would on a standard cellular network.

Can I run a multi-tenant or white-label operation on this platform?

Yes. The platform is architected with robust API-driven multi-tenancy. This allows wholesale providers, aggregators, and large operators to host, partition, and manage multiple distinct telecom brands or sub-MVNOs securely on a single IMS cloud instance each with its own isolated business logic and subscriber provisioning.

How does the platform handle subscriber identity and SIM provisioning?

VoiceBuy Cloud IMS features an advanced Identity Provisioning engine that is fully eSIM, USIM, and ISIM ready. You can dynamically allocate Global DIDs, manage secure SIM-based authentication, and activate or suspend subscriber profiles in real time, either through our centralized web dashboard or programmatically via developer-friendly REST APIs.

What are the deployment timelines and infrastructure prerequisites?

Because our IMS platform is 100% cloud-hosted, there is zero hardware deployment required on your end, eliminating traditional CapEx. Integration timelines depend on your existing softswitch configuration, but a standard setup can typically be provisioned and ready for testing within a few business days following an engineering consultation.

Build Your Telecom Operator in the Cloud.