Add Voice, SMS, and Fax

to Your App in Minutes.

Supercharge your software with reliable, scalable telephony and fax APIs. Build calling, texting, and document delivery right into your application, without the headaches of telco complexity.

Build Quickly

For developers, AI builders, and SaaS innovators:

We take care of carrier relationships, compliance, and scaling, so you can focus on product innovation.

Key Benefits

Simple APIs, Powerful Features

Built for Builders

Use Cases

AI & Automation:

Add a telephony layer to AI assistants, AI Agents, and bots so they can call, text, or fax directly.

Healthcare:

Securely transmit sensitive documents with HIPAA-compliant eFax APIs.

Legal & Finance:

Automate document workflows with fax + digital delivery.

SaaS Platforms:

Embed calling and messaging directly into your product for a seamless user experience.

Why Choose Us?

Unlike generic CPaaS providers, we give you the tools, compliance, and billing infrastructure to make telephony work at scale. Our platform was built to solve the unique complexities of telecom, so you don’t have to.

Trusted by Leading Software Vendors

Join the innovators who have already integrated their solutions with Viirtue’s Telephony & Fax APIs. Our platform powers calling, messaging, and secure faxing inside world-class applications.

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Trusted Telephony APIs for Modern Platforms

From contact centers to AI voice bots, leading software providers rely on Viirtue for reliable, scalable communications.

See why software providers choose Viirtue

Start building with Telephony & Fax APIs today.

Plug in our APIs, scale with confidence, and innovate faster.

FREE eBOOK

The 7 Silent
Profit Killers.

In just 25 minutes, you will spot the leaks, estimate the damage, fix the workflow, and get AI-ready, with downloadable checklists to lock it all in.

Download the FREE ebook and fix what’s costing you time and money before it costs you another week.