Allô brings AI-powered calls to your pocket with ElevenLabs

Allô is a mobile-first business phone system for SMBs. It’s the latest app from the Mobile First Company, a Lightspeed Venture Partner backed startup building for entrepreneurs and small businesses that run their operations from a smartphone. With features like AI-driven call summaries, spam blocking, and smart routing, Allô turns any mobile device into a complete business communications hub.

AI receptionists that are fast, multilingual, and responsive

To support both French and English users, Allô relies on ElevenLabs voices—Mylene for France and Tanya for the US. These voices handle every spoken touchpoint across the system, from voicemail greetings to live AI agents.

Allô integrates ElevenLabs’ Text to Speech and Conversational AI to deliver low-latency, natural-sounding voice across their telephony stack.

Text to Speech is used for all pre-recorded messages:

• Greeting and voicemail flows
• Smart routing and transfer prompts
• Contextual information updates during call transfers

Conversational AI powers real-time AI agents that can answer calls on behalf of users. Each agent is configurable—with custom instructions, voice settings, and tone—and integrates directly into Allô’s SIP telephony infrastructure via web sockets.

“We started with a different vendor who over-promised and under-delivered. We were already using ElevenLabs for pre-recorded speech, so when they launched Conversational AI, we switched—and it was a dramatic improvement,” said Jérémy Goillot, CEO of Allô. “Voice latency is critical for a good experience. With ElevenLabs, we finally found voices that sound natural, respond quickly, and perform well in both English and French”.

Low-latency voice that keeps callers engaged

Allô moved from idea to production in just one day using ElevenLabs—and immediately saw tangible gains.

• 1-day turnaround to build a working prototype
• 2x higher caller engagement in the US
• Dramatically fewer latency-related complaints

The team also leveraged the ElevenLabs Startup Grants program to test and scale their AI agents with minimal upfront risk.

The new standard for AI voices

Allô’s experience shows how ElevenLabs’ Conversational AI and Text to Speech can help teams deliver fast, high-quality voice interactions in multiple languages without compromising on latency or clarity.

If you're building smart phone systems, AI receptionists, or any voice-driven customer interface, get in touch.