How to Build an SMS Chatbot with Twilio
Blog post from Voiceflow
The guide provides a step-by-step tutorial on creating an SMS chatbot using Voiceflow, Twilio, and Make.com without requiring any coding skills. It begins with setting up a FAQ agent in Voiceflow that uses Retrieval-Augmented Generation (RAG) to fetch answers from a personalized knowledge base, which can be populated with various resources like website URLs, PDFs, and policy documents. The chatbot can then be connected to Twilio to send and receive SMS, with Make.com serving as the backend to automate the process. The tutorial emphasizes prompt engineering to ensure the AI provides accurate and concise responses while maintaining cost-effectiveness by keeping SMS messages under 160 characters. Additionally, for business use, compliance steps like 10DLC registration or creating a Regulatory Bundle are necessary to legally use Twilio numbers for messaging. The guide culminates in connecting Twilio and Voiceflow through Make.com, using a provided template to streamline the setup process, ultimately yielding a functional AI-powered SMS agent capable of real-time user interaction.
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