Voice AI Agent: How to Improve Data Formatting

The author of a Habr article argues that modern voice AI agents often reveal themselves not through poor speech synthesis, but through the incorrect reading of numbers, dates, and phone numbers. Even over low-quality phone lines (8 kHz), users instantly identify a robot if it reads a date as a fraction or a phone number as a single ten-digit integer. The article provides a compact 155-line library designed to correctly format dates, currency, percentages, and order numbers in Russian. The author shares practical development experience, detailing three key 'traps' encountered while writing the code. This solution aims to make voice bot interactions more natural and eliminate common errors that break the illusion of human dialogue. The full source code is available in the publication for developers to use.