AI Voice Agents for Customer Support

Boost customer satisfaction and experience with AI voice agents for customer support that automate, personalize, and resolve faster.

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Automating call operations for

Benefits

Why telli?

Provide Instant Support for Every Customer

With telli, AI voice agents respond to customer inquiries the moment they happen, including after hours and on weekends. Customers get immediate answers, faster resolutions, and a consistently high-quality support experience around the clock.

Respond to customers instantly
Provide 24/7 phone-based support
Reduce wait times and improve satisfaction

Resolve Issues Automatically

telli’s multilingual AI voice agents handle recurring support requests fully automatically. By connecting to a knowledge base or using RAG, issues are analyzed, frequently asked questions are answered, and all relevant information is captured. This allows your support team to focus on complex and escalated cases.

Natural, human-like interactions
Automated resolution for high-volume support questions
Less workload for your support team

Effortless Escalation to Human Agents

When an issue requires human involvement, telli routes the customer to the right support specialist with complete context through warm transfers. Agents receive summaries, customer history, and all relevant details, ensuring smooth, efficient resolutions.

Intelligent routing to the right team
Full conversation context preserved
Smooth AI-to-human escalations

Keep Your Support Systems Updated Automatically

telli captures every interaction and syncs details instantly to your CRM or ticketing platform. No more manual note-taking. Your team gets complete, accurate records for every customer.

Automatic ticket creation and updates
Accurate, real-time support data
Insights to improve service quality

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Features

Everything you need for better customer support

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Multilingual AI Voice Agents

Deliver fluent, native-sounding conversations in over 40 languages, including English, German, French, Spanish, Dutch and Italian.

Call Transfer

Seamlessly hand off during inbound and outbound calls with warm transfers. telli connects AI-led conversations to the right human rep, checking availability and providing a brief summary of the previous conversation.

Appointment Booking

Let your AI handle scheduling from start to finish. telli’s voice agents connect directly to your CRMs and calendars, so appointments are booked instantly. No more back-and-forth emails or missed opportunities.

Branded Caller ID

Display your company name and logo on outbound calls to build trust and boost answer rates. Give every call a professional, recognizable touch from the first ring.

telli Studio

telli studio makes it easy to create, fine-tune, and improve how your AI voice agents respond. Use our AI-assisted chat or manually edit your call scripts

Auto Dialer

Run outbound call campaigns at scale with telli’s AI voice agents and smart calling strategies. When a lead doesn’t pick up, telli automatically retries at the optimal time ensuring maximum reachability and zero manual chasing.

Custom Tools

Extend your AI voice agents with Custom Tools. Connect to any API or data source to retrieve information, take action, and enhance every call.

Call Analysis

Analyze your calls at scale by tracking performance across thousands of calls, defining your own custom call outcomes and syncing outcomes back into your CRM.

Deployment

Up and Running in Days, Not Weeks.

Integrate in seconds, deploy in days. We’re there at every step to ensure your voice agents perform flawlessly from day one.

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Multilingual AI Agents

Sound Local. Everywhere.

Deliver fluent, native-sounding conversations over 40 languages, including English, German, French, Spanish, Dutch and Italian. Build trust with customers using local accents and natural tone. No translators, no extra staff.

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Customers

You’re in Great Company

5M+ calls automated

Drive higher inbound throughput with AI-optimized call handling

increase in monthly call volume

Convert more conversations into appointments with AI-guided scheduling

150

increase in booking rate

Offload routine intake calls to AI for cleaner, faster front-line operations

of information-gathering calls handled by a telli agent

Multiply call throughput using AI agents that operate without bottlenecks

completed call volume

Fill more technician calendars with AI-driven appointment scheduling

increase in weekly service appointments scheduled

Reach more customers on the first attempt with intelligent call sequencing

increase in connection rate

Convert more consultations into revenue with AI-guided follow-up and qualification

increase in CVR from consultation to sale

telli’s AI agents have expanded our outbound capacity further than we thought possible. We’re saving time, reaching more leads, and seeing a huge spike in follow-ups from potential customers.

Mareike Wiethölter

Head of Process Management

As a fast-growing AI-based company, we only work with the most cutting-edge solutions, and telli is just that. They help us dramatically scale lead response while giving our customers a high-quality experience.

Justus Kloth

Associate Director of Strategy

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.

Martin Fricke

Product Manager

telli is the most scalable and cost-efficient answer to call automation on the market. If you’re looking to ramp up sales without compromising on customer satisfaction, it’s a must.

Christoph Pirkl

CSO

We’ve been using telli for three months to book appointments with leads, and the results have been great. It’s surprisingly easy to use, and the AI agent consistently books appointments at the same rate or better than our internal call center.

Tommaso Piatti

Director Operations

telli delivers an incredibly human-like, scalable, and professional experience that's transformed how we handle customer calls. We're thrilled with both the product and the responsive, supportive team behind it.

Matthias Knoche

COO

telli brought our sales floor from chaos to calm. Our team now focuses on actually helping customers, not just reaching and scheduling them — and we haven’t missed a lead since.

Richard Ruben

Co-founder and CEO

Re-engage dormant leads at scale through intelligent outbound follow-ups

reactivation rate for outbound calls among reached leads

Eliminate long waits with near-instant AI call responses

faster call response time

Accelerate hiring steps with automated candidate progression

reduction in time spent advancing candidates

Resolve customer needs end-to-end through autonomous AI call handling

of calls fully resolved by telli agent

Streamline dispatch workflows with automated coordination and routing

time saved across the entire service dispatch organization

Expand service capacity without adding headcount through AI-powered operations

reduction in scaling costs

Lift overall performance by automating the highest-leverage steps in the workflow

increase in success rate

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Industries

Automate Call Operations for Every Industry

HVAC & Solar

Reach and qualify homeowners fast, then book on-site consultations automatically.

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Real Estate

Call and convert buyer and seller leads instantly so you can schedule viewings before competitors do.

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Financial Services

Follow up on inbound sign-ups instantly, pre-qualify prospects, and book advisor calls.

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Insurance

Proactively contact leads for quotes or renewals and convert them with instant AI follow-ups.

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Hiring & Recruitment

Engage candidates faster with automated outreach, screening calls, and interview scheduling.

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Consumer & B2C Brands

Connect with prospects, qualify interest, and book consultations or demos at scale.

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Telecom

Transform telecom with AI voice agents to deliver faster, smarter, and personalized customer experiences.

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Integrations

Plug and Play. No Heavy Lifting.

telli plugs directly into your CRM, calendars and customer systems, automatically capturing and updating data from every call. No manual entry. No extra steps.

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Simpify Call Operations

See What You’ll Save With telli.

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Security

Enterprise-Grade Protection by Default.

FAQ

Frequently Asked Questions

What is AI Customer Service?

AI customer service uses artificial intelligence to automate and enhance customer interactions across support channels. Voice agents from telli handle calls, answer FAQs, collect details, troubleshoot issues, and provide 24/7 assistance, which helps service teams scale support while maintaining a high-quality, human-like experience.

How is AI used in customer service?

AI is used in customer service to deliver fast, accurate, and scalable support. It automates common inquiries, provides 24/7 availability, gathers key details, troubleshoots routine issues, and routes complex cases to human agents — improving response times, consistency, and overall service quality.

Can AI improve CSAT?

Yes. AI improves CSAT by offering instant responses, reducing wait times, and delivering consistent, human-like support. Voice agents like telli resolve routine issues quickly, ensure customers feel heard, and route complex problems to the right human agent — leading to faster resolutions and higher satisfaction.

What is the best AI agent for customer support?

The best AI agent for customer support is one that delivers fast, accurate, and consistent help across every customer interaction. Voice agents from telli excel because they provide instant, human-like phone support, resolve common issues automatically, operate 24/7, and seamlessly hand off complex cases to human teams with full context.

Is telli secure and compliant?

Yes, telli is built with enterprise-grade encryption, rigorous safety standards, and compliance with key regulations like HIPAA and GDPR. This ensures that customer conversations and data remain secure, private, and fully protected.

Does telli integrate with customer service software and ticketing systems?

Yes. Modern AI support tools work best when they connect to existing systems. telli integrates seamlessly with leading CRMs and ticketing platforms, automatically creating and updating tickets, syncing conversation data, and ensuring your team has full context for every customer interaction.

Can I optimize telli’s AI agents?

Yes. telli includes a powerful prompt editor called telli studio that allows you to refine responses, workflows, and conversation logic. You can adjust tone, instructions, and behavior to match your brand and operational needs or our team can help you do so. Continuous optimization helps your AI receptionist become smarter, more accurate, and more aligned with your customer experience goals.

Do telli’s voice agents sound like AI?

No. telli’s voice AI is designed to sound natural, human-like, and conversational. Our customers consistently report that callers don’t realize they’re speaking with AI — and many find it hard to believe even after being told. The result is a smooth, engaging experience that feels like talking to a real customer success representative.