If you run IT for a company, you’ve probably implemented a Unified Communications (UC) solution with a key objective being to deliver an office based calling experience to your hybrid and remote workers and also those who travel abroad.
Your goal was simple: make mobile business communications accessible, reliable and secure for the distributed workforce. Sounds simple, doesn’t it?
But for years, UC apps on mobile have fallen far short and delivered a really poor experience, because unlike on the desktop, apps on mobiles just don’t align with how people naturally use their mobile phones and the call quality is often very poor.
Why Apps Fall Flat
When app-based UC hit the scene a couple decades ago, managers hoped it would finally bridge the gap between desk phones and smartphones. Instead, they spent years wrestling with frustrated users and endless support tickets.
The main issues were:
- Poor call quality – Calls relied on data connections, leading to dropped calls, jitter and lag. Calls were not business quality.
- Clunky interfaces – Users had to remember to open a separate app instead of just dialing. They had to take several steps to make a simple call.
- Battery drain – Constantly running in the background, UC apps ate power fast.
- Low adoption – Even with mobile-device management enforcement and training, most employees reverted to their native dialer.
Advances in Mobile Technology and Mobile UC deliver far better solution
In the last 5 years, eSIMs have become commonplace in mobile phones. Originally eSIMs were introduced as a way to eliminate the expensive and fiddly physical SIM cards and streamline subscriber management for mobile carriers.
A consequence of this advancement is that Mobile phones now allow an additional eSIM to be used simultaneously in the device. This eSIM becomes a second business phone line, with an existing landline number, which is tied directly into a company’s UC platform. So in effect, it replaces the mobile App with an embedded business line.
The Superior eSIM-based Experience
The sSIM has at last solved the Mobile Unified Communications conundrum and delivers a far better user experience.
Unlike traditional UC apps, the business line tied to an eSIM integrates directly into a phone’s native dialer. That means employees make and receive business calls using the same interface they already know, with no app required.
From an IT perspective, that’s a massive leap forward. An eSIM-based solution turns any mobile device into a full business extension with carrier-grade voice quality and performance. It creates a dual persona, with workers’ personal lines remaining private, and a separate business line controlled entirely by you.
It can have a huge financial benefit as well because it allows for controlled and compliant Bring Your Own Device (BYOD) programs, which can eliminate the need for landlines and company-provided cell phones altogether.
There’s no VoIP routing through a flaky data network. Calls ride on the mobile voice channel itself so are business quality. The experience is as natural as any personal call, but it carries the employee’s business identity and allows for native use.
The Employee Experience: Apps vs. Tango Extend – Native UC with eSIM
Our Tango Extend solution is a comprehensive eSIM-based native UC service. It delivers a superior user experience that will end the IT headaches of UC apps. In fact in recent market research 99% of end users said they would prefer to have a business eSIM in their personal devices to carry out their jobs.

The contrast couldn’t be clearer. Employees finally have a business line that behaves like a desk phone line and folks in IT get a simple to deploy easy to control mobile UC solution that they have been looking for..
True Mobile Freedom with Tango Extend
Tango Extend becomes an easy win-win for IT and employees alike. Business communications are simple and seamless.
With a Tango Extend eSIM, a business line can be provisioned in a mobile device digitally, by simply scanning a QR code, making it seamless for an employee’s phone to carry both personal and business lines for communications. Within minutes, employees have:
- A dedicated business number that travels with them
- Separation between personal and business usage and billing
- Full privacy, ensuring personal numbers stay personal
When someone leaves the company, you can deactivate the eSIM instantly, securely recovering the line. No devices to wipe, no data loss risk.
With Tango Extend, you’ve moved beyond the limitations of app-based UC. Your employees communicate naturally from their mobile phones, yet maintain their business identity and privacy.
Calls are clear, setup is effortless, and support requests drop dramatically.
For years, UC promised mobile freedom. Tango Extend from Tango Networks has finally delivered it: no apps, no friction, just seamless, secure business mobility.
Get in touch to learn more about true Mobile UC with Tango Extend.



