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Introducing the telli Prompt Editor: Smarter, safer, and faster agent optimization
Building and refining AI voice agents can be tricky. Every word, phrase, and branch of logic impacts your agents’ performance and, in turn, your customers’ experience.
Introducing telli voices: Authentic voices for every customer conversation
AI voice agents have the potential to scale a sales team’s reach like never before, so why do many businesses hesitate to fully embrace them?
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Introducing telli Duo Agents: Why we are betting on speech-to-speech AI
telli Duo Agents replace ‘cascading architecture’ with the future of Voice AI: speech-to-speech models that can talk and listen at the same time.
Startup Telli Raises $15 Million to Replace Call Centers With AI Agents
telli raised $15 million in a seed round to develop its artificial intelligence (AI) agent builder focused on customer-facing AI agents.
telli sammelt 15 Millionen ein
KI-Startup telli sammelt 15 Millionen ein
Under 30 Europe Alums Raise $15 million for AI Customer Agents
telli has raised $15 million to define the next era of AI in customer operations. Led by redalpine, with participation from Wayra/Telefónica, Cherry Ventures and Y Combinator.
Exclusive: Berlin’s telli raises $15M seed to put AI agents in charge of customer ops, backed by redalpine, Cherry, and YC
Berlin-based telli has raised a $15M seed round led by redalpine. Founded by ex-Enpal operations leads, the startup builds AI voice agents for B2C sales.
telli Secures $15M Seed to Automate Customer-Facing Operations
Berlin-based telli has secured seed funding to expand its AI platform for customer-facing operations, supporting businesses in automating customer interactions across multiple communication channels while scaling its engineering and commercial teams.
YC-backed telli raises €13.1 million to build AI for B2C customer operations
telli, a Berlin-based startup building AI that runs customer-facing operations for B2C companies, today announced a €13.1 million ($15 million) Seed
Introducing the telli Prompt Editor: Smarter, safer, and faster agent optimization
Building and refining AI voice agents can be tricky. Every word, phrase, and branch of logic impacts your agents’ performance and, in turn, your customers’ experience.
telli raises $15M to build AI for customer-facing operations
telli has raised a $15M seed round led by redalpine, with support from new and existing investors, including Cherry Ventures and YC.
Introducing EU hosting: High-quality, GDPR-compliant conversations
We’re excited to introduce our latest product update: EU hosting.
Introducing telli Voices: Authentic Voices For Every Customer Conversation
AI voice agents have the potential to scale a sales team’s reach like never before, so why do many businesses hesitate to fully embrace them?
How to Implement an AI Voice Agent: Step-by-Step Guide
Successful AI voice agent deployment depends far more on upfront preparation than the underlying software. Follow this step-by-step guide to map workflows, configure integrations, test thoroughly, and execute a seamless phased rollout.
How to Choose an AI Voice Agent: Buyer's Guide
Stop relying on flashy demos and feature lists to make your purchasing decision. Learn how to evaluate, test, and select the right AI voice agent based on your actual workflows, integration needs, and business goals.
Conversational AI vs AI Voice Agents: What's the Difference?
Conversational AI is the underlying engine, while AI voice agents are the specific vehicle built for phone calls. Learn the key differences between the two to choose the right automation solution for your business channels.
AI Voice Agent Analytics Explained: Metrics That Matter
Tracking call volume won't tell you if your AI voice agent is actually working. Discover the core metrics across customer experience, operations, and business outcomes needed to turn raw data into continuous improvement.
Personal agents are here. Here’s what businesses need to do.
Personal AI agents now book appointments, request refunds and cancel subscriptions for consumers. Here is how businesses can prepare to serve them.
Prompt Engineering for AI Voice Agents: Best Practices & Examples
The secret to a reliable AI voice agent lies in its prompt, not just the underlying language model. Discover best practices for crafting, testing, and securing conversational prompts that drive real business results.
How To Improve Your Average Handle Time (Feat. Real Case Studies)
A guide to calculating, benchmarking, and reducing Average Handle Time. And how AI voice agents help teams do more without rushing conversations.
Cost Per Contact: How to Calculate, Benchmark and Reduce It
A complete guide to measuring and reducing cost per contact in customer service operations, and the role AI voice agents play in driving down costs without sacrificing quality.
AI Voice Agents vs IVR: What's the Difference?
Traditional IVR menus simply route calls, while modern AI voice agents actually understand and resolve customer requests. Learn the key differences between the two systems and discover when it's time for your business to upgrade.
AI Voice Agent Features Explained: What Actually Matters?
Stop comparing endless feature lists and start focusing on business outcomes. Discover which conversational, automation, and enterprise capabilities actually drive results for your specific use case.
How To Test AI Voice Agents
In this guide, we give you a comprehensive breakdown of how to test your AI voice agents, including industry benchmarks you should be aiming for.
How AI Voice Agents Work: Architecture & Call Flow Guide
Learn how AI voice agents work from speech recognition and LLM reasoning to knowledge retrieval, APIs, and natural voice responses.
AI Voice Agent Security: Risks, Compliance & Best Practices
Learn how to secure AI voice agents, manage compliance risks, and protect customer data. Explore GDPR, HIPAA, SOC 2, AI security threats, and more.
Churn Rate: How To Measure, Benchmark, And Reduce Customer And Employee Churn
A practical guide to understanding both customer and employee churn, the benchmarks that matter, and how AI voice agents can reduce attrition across the board.
Lead Conversion Rate: What It Means, How To Measure It, And How To Improve It
Everything you need to know about tracking, benchmarking, and improving lead conversion rate, and where AI voice agents make the biggest difference.
First Contact Resolution Rate: What It Is, How To Measure It, And How To Improve It
Learn how to calculate FCR, benchmark your performance against industry standards, and use AI voice agents to resolve more issues on the first call.
Guide To CSAT: How To Improve Customer Satisfaction Scores
Learn how to calculate, benchmark, and improve CSAT with proven customer support strategies and AI automation.
AI Real Estate Agents: How Companies Use Them
Curious about AI real estate agents? Learn how companies like Engel & Völkers LiquidHome use AI to scale lead outreach, automate follow-ups, and increase conversions.
Which Is The Best AI Voice Agent For Customer Service?
We compare the best AI voice agents for customer service, including telli, Parloa, Retell, and Synthflow, to find the right platform for automation, scalability, and customer experience.
AI Voice Agent Barge-In: How Real-Time Interruption Handling Works
Learn what AI voice agent barge-in is, how it works, why it improves customer experience, and how we’re solving for it at telli.
We Break Down the Best AI Voice Agents For Appointment Booking
AI voice agents are on the rise, but which ones truly deliver bookings? We explore the top options and what sets them apart.
AI Lead Qualification: How Voice Agents Qualify Leads Faster
Learn how AI voice agents qualify leads instantly, capture key data, and increase conversions with faster, more consistent follow-up.
AI for Customer Engagement: Proven Strategies, Tools & Best Practices
Unlock higher retention with AI: Explore actionable strategies, real-world results, and top tools for AI-powered customer engagement.
What is an AI Receptionist? Why Every Business Needs One in 2026
Learn how AI receptionists work and why businesses use them to automate calls, improve customer experience, and never miss a lead.
Retell AI Review (2026): API, Pricing & Best Alternatives
Compare Retell AI's API, pricing, features, pros and cons, and the best Retell AI alternatives in one guide.
Vapi Review (2026): API, Pricing & Best Alternatives
Review Vapi's API, pricing, features, pros and cons, and compare the best Vapi alternatives for AI voice agents.
Synthflow Review (2026): Features, Pricing & Best Alternatives
Read our Synthflow review covering pricing, features, ratings, and the top Synthflow alternatives for AI voice automation.
ElevenLabs Review (2026): Features & Best Alternatives
Read our ElevenLabs review covering voice AI features, pricing, ratings, and the best ElevenLabs alternatives.
Fonio Review (2026): Features, Pricing & Best Alternatives
Discover Fonio's pricing, features, pros and cons, and compare the best Fonio alternatives before choosing a platform.
Parloa Review (2026): Features, Pricing & Best Alternatives
Explore our Parloa review with pricing, features, pros and cons, and the best Parloa alternatives for enterprise AI voice.
Bland AI Review (2026): Features, Pricing & Best Alternatives
Read our Bland AI review covering features, pricing, pros and cons, ratings, and the best Bland AI alternatives.
telli Review (2026): Features, Pricing & Best Alternatives
Read our telli review covering pricing, features, pros and cons, and the best telli alternatives for AI voice automation.