Based on the documentation in the contact center, we build question-and-answer systems for users (both customers and operators). To create a product, you need to use 1 machine learning model. The iPavlov team has created the iPavlov IVA chatbot platform, one of the components of which is a question response system (both for knowledge bases and for processing questions with an open domain). We have adapted DeepPavlov's developments to solve business problems: 1. docs.deeppavlov.ai/en/master/features/models/kbqa.html 2. docs.deeppavlov.ai/en/master/features/skills/odqa.html