Better Business is Responsible
Reduce Cost and Carbon
No desk phones. No second devices. Reduce hardware waste with greener communications.
The Problem
The Hidden Costs of Device Sprawl
Traditional business communications are creating unnecessary waste and undermining sustainability efforts:
- Redundant hardware — issuing desk phones and second mobile devices to employees who already have powerful personal tech
- Increasing e-waste burden — the continuous cycle of manufacturing, shipping, and disposing of short-lived business devices
- Operational inefficiencies — managing separate inventories, repairs, and lifecycles for business-specific hardware
- Unnecessary carbon footprint — every additional device contributes to emissions from production to disposal
These practices are not only costly but also contradict modern corporate commitments to environmental responsibility and cost reduction.

The Impact
Wasteful Spending, Environmental Harm
The reliance on multiple devices for business communications has a significant, negative impact:
- £150–£300 per desk phone in procurement, installation, and maintenance costs annually
- 80kg CO₂ produced manufacturing just one smartphone, multiplied across millions of unnecessary devices
- 500 million kilograms of e-waste generated every year in the UK, much of it corporate equipment
- 50% of IT budgets spent on hardware, much of which could be consolidated or eliminated
Businesses are under pressure to achieve net-zero targets and optimise spending. Current communication setups often hinder both objectives.
The Solution
Sustainability Through Simplicity
Tango Extend streamlines business communications, enabling significant environmental and financial savings:
Eliminate desk phones — use employees' existing mobile devices for all calls, with professional business features
No second business mobiles — a dedicated business identity is added to personal phones via secure eSIM technology
Drastically reduce hardware waste — fewer devices mean less production, less packaging, and less e-waste
Lower carbon emissions — directly reduce your organisational carbon footprint by cutting down device procurement
Enhance ESG reporting — demonstrably improve sustainability metrics with tangible reductions in device energy and waste
Take it further
Recommended resources
Deep Dive
Explore Sustainability

Eliminating Desk Phone Waste
Discover how ditching desk phones slashes costs, reduces e-waste, and empowers your mobile workforce for a more sustainable future.
Learn more
eSIM and Environmental Impact
Discover how eSIM technology and consolidating business communications can significantly reduce your company's environmental footprint and contribute to a more sustainable future.
Learn more
Reducing Device Carbon Footprint
Discover how streamlining business communication devices can drastically cut your carbon footprint and e-waste, contributing to a more sustainable operation.
Learn more
Supporting ESG Through Communications
Discover how modern business communications can dramatically improve your ESG performance, reduce hardware waste, and lower your carbon footprint.
Learn more
One Device Policy for Sustainability
Embrace a 'one device' policy to cut e-waste, lower carbon footprints, and boost efficiency. A greener future for your business starts here.
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Greener Business Communications
Transform your business voice with a sustainable approach that cuts e-waste, lowers carbon emissions, and enhances your ESG credentials, all from a single device.
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Measuring Communication Sustainability
Discover how sustainable communication practices reduce environmental impact, cut costs, and boost your business's ESG profile.
Learn moreThe Proof
Proven Reductions in Waste and Cost
Use Case: Global Financial Services Firm
A leading financial institution transitioned 8,000 employees to Tango Extend, removing all desk phones and second business mobiles. This resulted in an estimated £3.5 million annual saving and a reduction of over 640 tonnes of CO₂ equivalent from eliminated hardware and associated energy consumption.
Key Statistics
- Average 30-45% reduction in overall communications hardware spend
- £200–£400 saved per user per year by eliminating desk phones and second mobiles
- 75% less e-waste generated from business communication devices annually


