Built inside Microsoft Teams. Not around it.
ZIRO migrates your voice to Microsoft Teams Phone, runs it inside your tenant, and turns every call into governed, AI-ready intelligence.

Trusted UC expertise, built inside the stack.
ZIRO is built for Teams Phone and M365 — not bolted on. Sixteen years of enterprise voice delivery, a Solutions Partner designation for Modern Work, and direct co-innovation with the Microsoft Teams Product Group. We don't run alongside the Microsoft ecosystem. We run inside it.
Our leadership team includes Microsoft alumni across product strategy, sales, solution architecture, and partnerships — so we understand how the platform evolves before it ships.
Modern Work
Verified through Microsoft Partner Center for enterprise-scale Teams Phone deployment.
Teams Product Group
Direct co-innovation with Microsoft Teams — ZIRO evolves alongside the platform, not behind it.
1M+ migrations
Enterprise-proven across industries — from hundreds of users to global deployments.
Calling for Teams
The audited Microsoft specialization for Teams Phone — the deployment bar, independently verified.
Voice is your entry point to AI.
Legal, manufacturing, financial services and education push voice harder than most — on compliance, scale or cost. They're also the industries we've migrated most often, so we know what yours needs.
"ZIRO is the best product for managing Teams Phone. It solved provisioning for me, and I can't put a price tag on the time I've saved."
Procurable through the paper you already have.
See it in practice.
Case studies that show ZIRO's Microsoft partnership delivering real outcomes for enterprise customers.
You're already paying for Teams Phone.
Make your oldest system your smartest — using the Microsoft tenant you're already running.


