Voice AIWriting System Prompts for Customer Service Voice Agents
A practical structure for system prompts that keep customer service voice agents accurate, brief and on policy, with a full example.
Blog category
Voice AI
How speech recognition, language models and synthetic voices work on real phone calls.
Voice AI
Voice AIBuilding a Knowledge Base Your AI Phone Agent Can Use
An AI phone agent is only as accurate as the information you give it. How to write, structure and maintain a knowledge base for voice agents.
Voice AIVoice Agent Latency: Why One Second of Silence Feels Long
Where the delay in an AI phone call comes from, what targets make sense, and how streaming, turn detection and barge-in make voice agents feel responsive.
Voice AIWhat Makes a Text-to-Speech Voice Sound Natural on a Call
Why some synthetic voices sound human on the phone and others sound robotic: prosody, pacing, numbers, latency and how phone audio changes what callers hear.
Voice AIWhy Phone Audio Is Hard for Speech Recognition
Phone calls strip out much of the sound speech recognition relies on. Narrowband audio, codecs, noise and crosstalk explained, plus what helps.
Voice AIWord Error Rate Explained: Measuring Speech-to-Text Accuracy
Word error rate (WER) is the standard way to measure speech-to-text accuracy. How it's calculated, a worked example, and why a low WER can still mislead you.
Voice AIWhat Is an AI Voice Agent? A Plain-English Guide
An AI voice agent holds real phone conversations. Here is how one works, what it can and can't do, and how it differs from a phone menu or a chatbot.