Find out what your voice environment may really be costing you.

Six questions show whether your Microsoft licensing already includes Teams Phone, and how many extensions you’d actually need.

Whether your Microsoft licensing already includes Teams Phone
How many extensions you’d likely license, in three scenarios
Where spend and hardware may overlap

Your result shows on screen. No email needed.

Your environment

Rough numbers are fine. That’s rather the point.

How many users with phones do you have?

A rough count is fine.

What phone system do you have today?

What Microsoft licensing do you have?

Annual phone system licensing and support, excluding PSTN (optional)

Leave blank if you don’t know. The tool still works.

Physical desk phones (optional)

Handsets, not softphone users.

Industry (optional)

Enter how many users have phones to see your result.

Your entitlement

How many users you’d actually license

Gartner’s 2026 UCaaS Magic Quadrant found enterprises cutting their telephony footprint by 10–50% of users on the way to cloud. Applied to your estate:

Users you’d license Phones likely unused

Scenario	Reduction	Users licensed	Annual Teams Phone cost at list

Which one you are isn’t a guess. It’s in your call records.

Want the full breakdown?

Every finding, every assumption behind these numbers, and a PDF you can send to whoever owns the budget.

Work email

Company

Enter a work email address to see the full breakdown.

What you may be carrying twice

Hardware exposure

What this doesn’t include. PSTN connectivity (calling plans, carrier contracts, session border controllers), migration services, contact center, or compliance recording. All figures are list prices, not your negotiated rate. This is a sizing exercise, not a quote.

About ZIRO

Voice is the oldest system you own. We make it the smartest.

01
Migrate
Teams Phone migration at enterprise scale. Numbers ported, users provisioned, call flows tested.
02
Manage
Direct Routing as a Service and managed operations for the whole voice estate.
03
Make intelligent
Voice and meeting data made ready for Microsoft Copilot and Agents.

60,000 seats

migrated to Teams Phone in six nights

16 years

in enterprise voice

1 of ~50

Microsoft Teams Phone Accelerator partners worldwide