Launch, Scale, and Monetize Global Voice —

Without Building Infrastructure

RTC ONE is the all-in-one communications platform that enables service providers and enterprises to deploy voice, messaging, and Microsoft Teams globally in days — not months.

RTC ONE
Microsoft Teams Integration

HostSBC — Technology, Operations, and Support Across Key Regions.

Unlock New Revenue

Generate new revenue streams with white-label voice & messaging.

Lower Your Costs

Reduce telecom costs by up to 40%.

Scale Globally

Go live globally without carriers, contracts, or hardware.

Simplify Operations

Manage routing, billing, and customers in one platform.

Built for Flexibility

One platform. Multiple ways to use it

A flexible platform designed for internal use or resale, with full control and no hardware dependency.

Unified

All-in-one cloud communications platform

Manage voice services, numbers, routing, and integrations from a single cloud-based platform.
Versatile

Flexible use: internal or resale

Use RTC ONE for your own operations or resell voice services to your end customers under your business model.
Anywhere

Work from any device, no hardware required

Access the platform from laptops, desktops, or mobile devices without on-premise equipment or complex setups.
What Can You Do With RTC ONE

Built for How Businesses Really Work

Use cases
  • Use RTC ONE inside your company for daily communications.
  • Connect your phone system to Microsoft Teams.
  • Make and receive calls from anywhere.
  • Resell phone numbers and voice services to your customers.
  • Manage usage, routing, and billing from one platform.
Try the Platform
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Core Communication Services

Everything in One Place

Bring your essential communication services together in one powerful platform. From business calling and messaging to global carrier connectivity and white-label solutions, RTC ONE gives you the flexibility, control, and infrastructure to manage and scale your communications with ease.

Microsoft Teams Integration

  • Make and receive phone calls directly from
  • Microsoft Teams.Keep your existing PBX or SIP provider while adding cloud calling to Teams.

SIP Trunking

  • Connect your phone system to our secure global network.
  • Scale capacity on demand and pay only for what you use.

Phone Numbers (DIDs) & Voice Traffic

  • Local and international phone numbers available worldwide.
  • High-quality voice traffic with transparent usage-based pricing.

Worldwide SMS & Messaging

  • Send and receive SMS globally using reliable carrier connections.
  • Ideal for notifications, alerts, authentication, and customer engagement worldwide.

Worldwide SMS & Messaging

  • Send and receive SMS globally using reliable carrier connections.
  • Ideal for notifications, alerts, authentication, and customer engagement worldwide.

Worldwide SMS & Messaging

  • Send and receive SMS globally using reliable carrier connections.
  • Ideal for notifications, alerts, authentication, and customer engagement worldwide.
Why HostSBC

A Trusted Communications Partner

HostSBC has delivered reliable business communications solutions for over 14 years, supporting customers worldwide with secure infrastructure, expert support, and services that scale as they grow.

+14 years of industry <br> experience.

+14 years of industry
experience.

Global customers.

Global customers.

Secure, cloud-based <br> infrastructure.

Secure, cloud-based
infrastructure.

24/7 expert support.

24/7 expert support.

Proven experience <br>in real-world <br>telecom operations.

Proven experience
in real-world
telecom operations.

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Why Choose Us

How It Works

Our platform comes packed with powerful features that make building and scaling your website effortless.

Create Your Account

Sign up in minutes and get instant access to the RTC ONE platform.

Configure Your Services

Choose and set up the services you need.

See RTC ONE in Action

Explore the platform, test the features, and see how RTC ONE can simplify your communications.

If you like what you see, book a call with our team.

Talk to Sales

Test the Platform

Explore features in a live environment

Go Live and Scale

Launch and grow as your business grows
Who Is This For

Designed for Growing Businesses and Service Providers

Turn your network into a revenue engine.

  • Launch VoIP, SIP, and messaging services fast.
  • Control routing, pricing, and margins.
  • Launch VoIP, SIP, and messaging services fast.
Grow Your Telecom Business

Turn your network into a revenue engine.

  • Launch VoIP, SIP, and messaging services fast.
  • Control routing, pricing, and margins.
  • Launch VoIP, SIP, and messaging services fast.
Optimize Your Communications
Core Communication Services

Everything in One Place

Voice, messaging, connectivity, and more — all in one powerful platform.

Microsoft Teams Integration

  • Make and receive phone calls directly from Microsoft Teams.
  • Keep your existing PBX or SIP provider while adding cloud calling to Teams.

SIP Trunking

  • Connect your phone system to our secure global network.
  • Scale capacity on demand and pay only for what you use.

Phone Numbers (DIDs) & Voice Traffic

  • Local and international phone numbers available worldwide.
  • High-quality voice traffic with transparent usage-based pricing.

Worldwide SMS & Messaging

  • Send and receive SMS globally using reliable carrier connections.
  • Ideal for notifications, alerts, authentication, and customer engagement worldwide.

Global Carrier Connectivity

  • Access a worldwide network of trusted carriers through a single platform.
  • Ensure high-quality routes, stable connections, and competitive international rates.

White-Label SaaS Platform

  • Use RTC ONE with your own brand, domain, and customer portal.
  • Perfect for service providers and companies offering communications services.
Fast answers

Have Questions About Our Solutions?

Find clear answers about HostSBC, RTC ONE, pricing, and integrations. If you need more details, our team is here to help.
Get a Quote

1. What is HostSBC?

HostSBC is a cloud communications solutions provider delivering scalable, carrier-grade voice services for businesses, service providers, and resellers worldwide.

Our solutions help organizations modernize, manage, and monetize real-time communications.

2. Is HostSBC a telecom carrier?

HostSBC operates as a technology and services provider, connecting customers to global voice infrastructure through certified carrier partnerships.

This model ensures flexibility, reliability, and global reach without traditional carrier limitations.

3. Where is HostSBC located?


HostSBC is headquartered in Miami, Florida (USA), with network points of presence and operational support centers serving customers across the Americas, Europe, and other regions.

4. Who are HostSBC solutions designed for?

Our solutions are built for:

  • Enterprises managing internal communications.
  • IT and telecom service providers.
  • System integrators and MSPs.
  • Businesses reselling voice services to their own customers.

5. What is RTC ONE?

RTC ONE is HostSBC’s cloud-based Real-Time Communications platform.
It centralizes SIP trunking, phone numbers, Microsoft Teams integration, voice traffic, and customer management into a single management environment.