AI
A deep dive into why ElevenLabs dominates the voice AI market, how enterprises use it, and how Click2Call connects it seamlessly to your phone system via SIP trunk.
In the rapidly evolving landscape of artificial intelligence, one company has emerged as the undisputed leader in voice synthesis: ElevenLabs. From powering conversational AI agents in Fortune 500 companies to giving a voice back to those who have lost it, their technology has set a new standard for realism, speed, and scalability. But what makes them the go-to choice for enterprises, and how can your business leverage this power through your existing phone system? This article explores the meteoric rise of ElevenLabs, why it dominates the market, and how Click2Call seamlessly integrates its capabilities using SIP trunking.
Founded in 2022 by Piotr Dabkowski, a former Google machine learning engineer, and Mati Staniszewski, a former Palantir deployment strategist, ElevenLabs was born from a shared frustration with the poorly dubbed American movies of their Polish childhoods. Their mission was ambitious yet simple: to break down language barriers with technology that could generate high-quality, emotionally resonant spoken audio in any voice and any language. This wasn't just about creating another text-to-speech (TTS) tool; it was about capturing the nuance, intonation, and humanity of speech.
The company quickly gained traction, achieving unicorn status with a valuation exceeding $1 billion within its first two years. By early 2026, after a staggering $500 million Series D funding round led by Sequoia Capital, its valuation had skyrocketed to an estimated $11 billion [1]. This rapid growth wasn't just financial; it was a testament to the tangible superiority of their product.
"While it took Twilio eight years to reach $330M ARR, ElevenLabs achieved this milestone in just over two years."
Source: SaaStr [2]
The dominance of ElevenLabs isn't accidental. It's the result of relentless innovation across several key areas that, when combined, create a product that is simply unmatched in the market.
The core differentiator for ElevenLabs is the sheer quality of its generated voices. While competitors often produce robotic or flat-sounding audio, ElevenLabs' models generate speech that is rich in emotional nuance and prosody. It captures the subtle inflections, pauses, and tones that make a voice sound genuinely human. This realism is crucial for applications where user engagement and trust are paramount, such as conversational AI agents, audiobooks, and character voice-overs in gaming.
For a conversational AI agent to be effective, it must respond instantly. Any perceptible delay shatters the illusion of a natural conversation. This is where ElevenLabs has made significant breakthroughs. Their "Turbo" engine can generate audio with a latency of around 300 milliseconds, while their newer "Flash" TTS engine pushes this even lower [3]. This sub-second response time is critical for creating fluid, real-time interactions, making it possible for AI agents to handle complex customer service calls without frustrating delays.
One of the most powerful features of the ElevenLabs platform is its ability to create a digital replica of a specific voice from just a few minutes of audio. This "Voice Cloning" technology allows businesses to create a unique and consistent brand voice for all their audio content. Furthermore, their "Voice Design" tools enable the creation of entirely new, synthetic voices by specifying parameters like gender, age, and accent. This level of customisation is invaluable for companies looking to establish a distinct sonic identity.
From its inception, ElevenLabs has focused on breaking down language barriers. The platform supports over 32 languages, allowing businesses to serve a global audience with a single solution. Crucially, the quality remains high across all languages, preserving the emotional depth and clarity of the original voice. This capability is a game-changer for multinational corporations aiming to deliver consistent customer experiences across different regions.
The most telling indicator of ElevenLabs' leadership is its widespread adoption by major enterprises. An estimated 41–60% of Fortune 500 companies use ElevenLabs' technology in some capacity [4, 5]. While specific client lists are often confidential, the use cases span numerous industries:
Having a powerful AI voice agent is one thing; connecting it reliably to the global telephone network is another. This is where Session Initiation Protocol (SIP) trunking becomes essential. A SIP trunk is a digital equivalent of a traditional phone line that uses an internet connection to link your company's phone system (your PBX) to the public telephone network.
Instead of running your AI agent in a silo, SIP trunking allows it to function as a fully-fledged member of your team. It can make and receive calls using your existing business phone numbers, transfer calls to human colleagues, and be managed within your central phone system.
Click2Call provides the critical infrastructure that makes this connection seamless and robust. By using a Click2Call SIP trunk, you can directly link your ElevenLabs conversational AI agent to our carrier-grade voice network. This offers several key advantages:
| Advantage | Why It Matters |
|---|---|
| Use Your Existing Numbers | There's no need to advertise new phone numbers. Your customers can continue calling the number they already know, and the call will be routed directly to your ElevenLabs agent. |
| Carrier-Grade Reliability | Our network is built for high-availability and call quality, ensuring that your AI agent is always online and that conversations are crystal clear, without the jitter or dropped calls common on lower-quality VoIP networks. |
| Scalability and Cost-Effectiveness | SIP trunks are far more flexible and cost-effective than traditional phone lines. You can easily scale the number of channels (simultaneous calls) up or down as your needs change, paying only for the capacity you require. |
| Unified Call Management | All calls, whether handled by a human or an AI agent, are managed through your Click2Call portal. This provides unified reporting, call recording, and analytics, giving you a complete picture of your business communications. |
ElevenLabs itself has recognised the importance of this integration, recently upgrading its SIP capabilities to make it easier for businesses to connect their agents to telephony providers like Click2Call [7]. This direct integration is the key to unlocking the full potential of voice AI within a professional business environment.
We are currently finalising a detailed, step-by-step guide on how to configure your ElevenLabs agent and connect it to your Click2Call account using a SIP trunk.
This guide will be published in our Help Centre shortly. Stay tuned!
ElevenLabs has established itself as the clear leader in voice AI not just through marketing hype, but through superior technology that delivers tangible results. Its ability to produce realistic, low-latency speech has made it the platform of choice for thousands of businesses, including a significant portion of the Fortune 500.
For Australian businesses, the path to leveraging this transformative technology is clear. By combining the intelligence of an ElevenLabs conversational AI agent with the reliability and scalability of a Click2Call SIP trunk, you can build a communications system that is more efficient, more insightful, and provides a vastly superior customer experience. The future isn't just calling; it's talking, and it sounds more human than ever before.
Written by
Royce Clark
Royce Clark has over 15 years of experience working in the telecommunications industry, specialising in VoIP systems. He is a Voice Engineer at Click2Call, helping Australian businesses design and deploy modern, reliable cloud phone systems.
