Skype’s Shutdown: A Reminder of Telcos’ War on VoIP and the Case for Net Neutrality
Microsoft’s announcement that it will shut down Skype in May 2025 marks the end of an era for Internet calling. The pioneering VoIP service changed how the world communicates, but its journey was fraught with battles against traditional telecom operators. From secretive beginnings born of fear of telco retaliation to regulatory fights that enshrined net neutrality, Skype’s story offers a cautionary tale. As we bid farewell to Skype, it’s worth remembering how close we came to a telecom-controlled Internet — and why preserving an open Internet remains crucial.
Skype’s Secretive Launch
Skype debuted in 2003 as a disruptive idea: free voice calls over the Internet. Its founders, Niklas Zennström and Janus Friis (of Kazaa file-sharing fame), launched the service almost in stealth mode. This secrecy was no accident. Skype’s software was deliberately engineered to be hard to detect on networks to avoid filtering: it operated peer-to-peer and encrypted its traffic. The unofficial reasoning was simple: if telecom companies realised what was happening, they would try to block it. As one report noted, Skype’s “extreme stealthiness” was considered necessary to keep threatened telcos from sniffing out and blocking the service. In an era when phone companies made billions from traditional calls, an application that let people talk for free — outside the phone network — was a lethal threat.
The covert launch strategy paid off: Skype grew explosively in its first years, largely before telcos knew what hit them. By the time incumbent operators woke up to the popularity of Internet calling, Skype had tens of millions of users. But a fierce backlash was coming.
Telco Resistance to VoIP
By the late 2000s, Skype and other VoIP services were firmly in the crosshairs of telcos. Many carriers saw Internet calling as an existential threat to their lucrative voice-call revenues. They responded with a mix of blocking, throttling, and contractual restrictions, trying to push VoIP providers out of the market — or at least out of their networks.
In 2005, the FCC forced a small rural ISP called Madison River Communications to stop blocking Vonage. But in Europe, telcos found other ways to undermine VoIP. Spain’s Yoigo and Sweden’s TeliaSonera outright banned Skype from mobile (unlimited) data plans. UK carriers Vodafone and Orange required users to pay extra fees to use VoIP, while France’s Orange charged €15/month for Skype access.
Technical interference was also widespread. ISPs deployed deep packet inspection (DPI) to throttle VoIP traffic, degrading call quality, in some cases to the point of unusability. In fact, one UK carrier, O2, openly disclosed that during peak hours it was “shaping” certain traffic – specifically peer-to-peer traffic of the type Skype uses – down to a trickle of 50 kbps, a speed at which voice calls struggle and video calls are impossible. In plain terms, telcos were actively downgrading call quality. In the US, AT&T even pressured Apple to block VoIP apps from mobile networks, limiting Skype to Wi-Fi until regulators intervened.
Telecom executives defended such moves as “reasonable network management” at a time when mobile bandwidth was scarce. But consumer advocates saw a more cynical motive: protect the cash cow. By crippling Skype and similar services, telcos could force users to keep paying for traditional voice minutes or SMS, or upsell them to costlier plans.
By the early 2010s, it was clear that without legislative intervention, telcos would keep VoIP locked down or buried behind paywalls. A joint investigation by the Body of European Regulators for Electronic Communications (BEREC) and the European Commission exposed the scale of the problem: up to 50% of EU mobile broadband users were on contracts that allowed ISPs to block services like Skype, while 20% of fixed-line operators restricted peer-to-peer traffic at peak hours, impacting as many as 95% of users in some countries. Consumers faced a confusing web of restrictions—could you use Skype on this network? On that plan? The backlash was growing, and regulators were finally taking notice. The stage was set for the next chapter: the rise of net neutrality.
The Rise of Net Neutrality
As telecom carriers increasingly discriminated against certain applications, policymakers pushed for “Open Internet” or net neutrality rules to ensure ISPs treated all data equally. The idea was to ensure that innovative services like Skype could compete on merit, without interference from telecom gatekeepers.
A major breakthrough came in 2011 when the Netherlands became the first European country to pass a net neutrality law, banning VoIP blocking and extra fees. This was a reaction to Dutch telcos openly considering surcharges for Skype and WhatsApp and admitting to using DPI for traffic shaping. Other countries soon followed with similar protections.
By 2015, the European Union adopted net neutrality rules under its Digital Single Market Strategy, explicitly prohibiting blocking and throttling of online services. A European Commission explanatory blog highlighted the move as a direct response to practices like Skype blocking or applying additional charges, declaring such restrictions illegal.
In other words, the law now had teeth to prevent the kind of contract tricks and packet discrimination that operators once used to undermine VoIP services. The result was an explosion of Internet-based communication services throughout the 2010s. The remote-work and video chat boom of the pandemic era might not have been possible without these protections. But the story doesn’t end there.
Present Threats
While overt blocking has faded, telecom operators are reviving efforts to control Internet traffic. Their latest push is the so-called “fair share” or network fee proposal, which would force online services like Netflix, Google, and Microsoft to pay extra fees to deliver content—an argument reminiscent of past VoIP battles.
Telcos claim these fees are necessary for network upgrades, but critics warn they are a way to double-dip, undermining net neutrality. Consumers already pay ISPs for Internet access, while content providers invest in delivery infrastructure, such as CDNs. Forcing additional payments could create a pay-to-play Internet, favoring big companies and shutting out startups—precisely what net neutrality rules were designed to prevent.
A 2023 European Commission “exploratory” consultation on network fees met overwhelming opposition, with experts warning such fees would break Open Internet principles. While EU regulators have resisted so far, telecom lobbying continues, and similar proposals are emerging globally. If accepted, they could take us back to a world where ISPs control which services thrive, threatening the hard-won protections of net neutrality.
Conclusion
The rise and fall of Skype serves as a vivid reminder of what’s at stake in keeping the Internet free from gatekeeper control. Two decades ago, a tiny startup had to outmaneuver telecom giants to offer free online calls. It survived only because regulators eventually intervened to enforce net neutrality, basically ensuring fair play. Those protections enabled the explosion of online services—video chat, streaming, and social media—that define modern life.
As Skype bows out, it leaves a legacy far bigger than one app. It’s a legacy of user empowerment and of pushing boundaries despite powerful opposition. But that legacy can be easily forgotten – or reversed. The latest “fair share” campaign by telcos shows that the impulse to wall off and toll the Internet never really dies; it just finds new guises. If we allow net neutrality to be weakened, we risk returning to a world where telecom operators decide which services thrive and which wither.
As we bid farewell to Skype, let’s not bid farewell to the principle that made its success possible. Defending net neutrality isn’t about nostalgia—it’s about ensuring the next generation of ideas isn’t blocked before they can even see the light
Written by Caroline De Cock, LL.M. , Head of Research.
March 5, 2025
