Resources
Recommended
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?

telli Raises $18.5M in Total Funding 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.
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.
PYMNTS.comPYMNTS | Startup Telli Raises $15M 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.
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.
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
Exclusive: Berlin's telli raises $15M seed to put AI agents in charge of customer ops, backed by redalpine, Cherry, and YC — TFN
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 sammelt 15 Millionen ein
KI-Startup telli sammelt 15 Millionen ein

Introducing EU hosting: High-quality, GDPR-compliant conversations
We’re excited to introduce our latest product update: EU hosting.

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?

How Homeday delivers 24/7 inbound call coverage with telli
Learn how this innovative tech-enabled real estate brokerage transforms high call volume into a competitive advantage with AI voice agents.

How Umzugspreisvergleich cut lead cancellations by 27% with telli
Learn how Germany's leading moving platform reduces lead cancellations by 27% and scales revenue-critical calls around the clock with AI voice agents.

How Whiskey Tango Foxtrot uses telli’s Voice AI to reduce the workload of customer service teams in the insurance industry.
Scaling Customer Service Through Strong Partnerships

How Sky scaled proactive customer engagement with telli's Voice AI in under 3 weeks
Learn how Sky scaled customer engagement with telli's Voice AI

How Bark adds 800 hours of weekly calling capacity with telli’s AI agents
Learn how this fast-growing global services marketplace manages rising call volumes with AI-assisted outreach.

How Zenjob automates 90% of initial candidate calls with telli
“telli is leading the charge for call automation in Germany. They tailored their voice agents to our exact business needs, and the efficiency gains have been incredible.”

How Enpal boosts weekly service appointments by 30% with telli
“telli is flexible, scalable, and customer-centric. With telli, our team stays focused on what really matters.”

How McMakler cuts peak call wait times by 3x with telli
Learn how this leading home-buying platform scales personalized customer service using AI voice agents — without increasing headcount.

How Engel & Völkers LiquidHome 10x’d call volume with telli
Learn how this high-growth real estate company partnered with telli to amplify phone outreach and reactivate leads.

How enerix empowered 15 franchisees to capture every lead with telli — in just 60 days
Learn how a leading sustainable energy company teamed up with telli to automate lead qualification and accelerate response times.

How KitchenAdvisor boosted conversions by 15% after automating phone outreach to inbound leads
Learn how this leading kitchen planning and comparison tool partnered with telli to accelerate lead response and elevate its customer experience.
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.
Recommended
Exclusive: Berlin's telli raises $15M seed to put AI agents in charge of customer ops, backed by redalpine, Cherry, and YC — TFN
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.
telli Raises $18.5M in Total Funding 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.
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.
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PYMNTS | Startup Telli Raises $15M 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.
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.
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
Exclusive: Berlin's telli raises $15M seed to put AI agents in charge of customer ops, backed by redalpine, Cherry, and YC — TFN
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 sammelt 15 Millionen ein
KI-Startup telli sammelt 15 Millionen ein
Recommended
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?
Introducing EU hosting: High-quality, GDPR-compliant conversations
We’re excited to introduce our latest product update: EU hosting.
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?
Recommended
How Sky scaled proactive customer engagement with telli's Voice AI in under 3 weeks
Learn how Sky scaled customer engagement with telli's Voice AI
How Bark adds 800 hours of weekly calling capacity with telli’s AI agents
Learn how this fast-growing global services marketplace manages rising call volumes with AI-assisted outreach.
How Homeday delivers 24/7 inbound call coverage with telli
Learn how this innovative tech-enabled real estate brokerage transforms high call volume into a competitive advantage with AI voice agents.
How Umzugspreisvergleich cut lead cancellations by 27% with telli
Learn how Germany's leading moving platform reduces lead cancellations by 27% and scales revenue-critical calls around the clock with AI voice agents.
How Whiskey Tango Foxtrot uses telli’s Voice AI to reduce the workload of customer service teams in the insurance industry.
Scaling Customer Service Through Strong Partnerships
How Sky scaled proactive customer engagement with telli's Voice AI in under 3 weeks
Learn how Sky scaled customer engagement with telli's Voice AI
How Bark adds 800 hours of weekly calling capacity with telli’s AI agents
Learn how this fast-growing global services marketplace manages rising call volumes with AI-assisted outreach.
How Zenjob automates 90% of initial candidate calls with telli
“telli is leading the charge for call automation in Germany. They tailored their voice agents to our exact business needs, and the efficiency gains have been incredible.”
How Enpal boosts weekly service appointments by 30% with telli
“telli is flexible, scalable, and customer-centric. With telli, our team stays focused on what really matters.”
How McMakler cuts peak call wait times by 3x with telli
Learn how this leading home-buying platform scales personalized customer service using AI voice agents — without increasing headcount.
How Engel & Völkers LiquidHome 10x’d call volume with telli
Learn how this high-growth real estate company partnered with telli to amplify phone outreach and reactivate leads.
How enerix empowered 15 franchisees to capture every lead with telli — in just 60 days
Learn how a leading sustainable energy company teamed up with telli to automate lead qualification and accelerate response times.
How KitchenAdvisor boosted conversions by 15% after automating phone outreach to inbound leads
Learn how this leading kitchen planning and comparison tool partnered with telli to accelerate lead response and elevate its customer experience.
Recommended
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 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.
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.