1. [Home](https://www.g2.com/) 2. ... 3. [AI Customer Support Agents Software](https://www.g2.com/categories/ai-customer-support-agents) 4. [telli Discussions](https://www.g2.com/products/telli/discuss) [ ![Product Avatar Image](https://images.g2crowd.com/uploads/product/image/large_detail/large_detail_cb008c6562b9e09d85b79ef8f54c08ab/telli.png "Product Avatar Image") ![Reward for good telli reviews](https://images.g2crowd.com/uploads/report_medal_translation/image/39118/medal.svg "Reward for good telli reviews") ](/products/telli/reviews) [ telli ](/products/telli/reviews) (33)4.8/5 telli is the AI Agent Platform for Customer Experience telli helps businesses transform their customer-facing operations with AI across voice, SMS, WhatsApp, and chat. Its agents qualify leads, book appointments, resolve customer requests, and complete tasks in connected CRMs and business systems—handing conversations over to your team when needed. Teams can build agents without code, while developers can build custom integrations and extend their capabilities through an extensible API and MCP connections. Built-in simulations, conversation reviews, and performance analytics help teams test and improve their agents. Charlie, telli’s AI coworker, helps create agents, analyze interactions, and continuously improve results. The platform supports multiple languages and AI models without locking businesses into a single model provider. Built for enterprise security and trust, telli supports SOC 2, HIPAA, GDPR, and EU AI Act compliance requirements. European enterprises run on sovereign European infrastructure, while US enterprises run on US servers. Companies including Sky, Viessmann, and Enpal use telli to reach more customers and give their teams more time for personal advice and complex requests. Show More * * * ### 90.0 Nps Score Already have telli? ### All telli Discussions Search Most CommentedMost HelpfulCommon QuestionsNewest All DiscussionsDiscussions with CommentsCommon QuestionsDiscussions without Comments FilterFilter Filter byExpand/Collapse Sort by Most Commented Most Helpful Common Questions Newest Filter by All Discussions Discussions with Comments Common Questions Discussions without Comments ![Nima S.](/assets/transparent-ad5be28fbcd25b7b08d2cebe1d957125437fb5407d75ee717965ad22c8808791.gif "Nima S.") NS Loading... [Nima S.](https://www.g2.com/users/6d898640-2a37-4b2e-a3d3-441d382d2b54 "Nima S.") • 4 days ago Founding Member Founding Member More Options - [ # How much prompt tweaking did it take to get telli’s call tone and flow right? ](/discussions/how-much-prompt-tweaking-did-it-take-to-get-telli-s-call-tone-and-flow-right) We’re using telli to call inbound leads within a few minutes of signup, and the voice sounds surprisingly natural in both German and English. It also handles objections well, but getting the tone and call flow right took some trial and error and a lot of prompt changes early on. The upside is... 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