Question 1

What is a UC platform?

Accepted Answer

A Unified Communications (UC) platform consolidates business voice, video, messaging, presence, and meetings into a single service. Microsoft Teams Phone, Cisco Webex Calling, Zoom Phone, RingCentral, 8x8, and Dialpad are leading examples. Tango Extend extends any of these platforms onto mobile devices using a business eSIM and the phone's native dialer.

Question 2

How does Tango Extend compare across Teams, Webex, Zoom, and other UC platforms?

Accepted Answer

The core experience is the same on every supported platform: a business number from your UC platform is delivered to the mobile via eSIM, and calls run through the native dialer with full UC features intact. The differences are mainly in the certification programme — Operator Connect for Teams, Webex Go for Cisco — and the underlying integration APIs used to provision numbers and routing.

Question 3

Which mobile UC solution is right for my business?

Accepted Answer

Most organisations choose by their existing UC standard: if you run Microsoft Teams Phone, Tango Extend for Teams is the natural fit; for Cisco shops, Tango Extend for Webex Calling; and so on. Tango Extend can also bridge organisations running multiple UC platforms in different regions or business units, giving every employee a consistent mobile experience regardless of the back-end platform.

Question 4

Is Tango Extend a UC platform itself?

Accepted Answer

No. Tango Extend is the mobile layer that integrates with your chosen UC platform. We do not replace Teams, Webex, Zoom Phone, or RingCentral — we bring them onto the mobile in a way the native UC vendors do not, by removing the requirement for a softphone app on the mobile.

Question 5

Does mobile UC require a softphone app?

Accepted Answer

Most UC vendors deliver mobile via a softphone app. Tango Extend is the leading alternative: by integrating at the carrier and eSIM layer, business calls run on the native cellular voice channel through the phone's standard dialer — no softphone app, no Wi-Fi dependency, no extra step for the user.

Question 6

Can Tango Extend integrate with contact-centre platforms as well as UC platforms?

Accepted Answer

Yes. In addition to UC platforms, Tango Extend integrates with contact-centre platforms such as Genesys, enabling agents and supervisors to take recorded, compliance-grade business calls on mobile devices using the same number and routing rules as on the desktop client.

Platform	Native dialer mobile calling	App required	Call recording	Best for
Microsoft Teams Phone	Yes — via Operator Connect	No	Yes (Teams compliance pipeline)	Microsoft 365 estates, frontline and field teams
Cisco Webex Calling	Yes — certified Webex Go provider	No	Yes (Webex recording)	Cisco-standardised enterprises and contact centres
Zoom Phone	Yes — via Tango Extend integration	No	Yes (Zoom Phone recording)	Zoom-first organisations adding mobile calling
RingCentral / 8x8 / Dialpad	Yes — via Tango Extend integration	No	Platform-native	Cloud-PBX customers extending UC to mobile

Integrated UC Platforms

Supported Platforms

Microsoft Teams

Cisco Webex Calling

Zoom Phone

RingCentral

8x8

Dialpad

Genesys

Other Platforms

How Platform Integration Works

UC Platform Connection

Number Provisioning

eSIM Activation

Native Mobile Calling

Comparing mobile calling across UC platforms

UC platforms: frequently asked questions

Don't See Your Platform?