Browse older CallSphere articles on AI voice agents, contact center automation, and conversational AI.
Latest analysis
Go beyond plain text responses. Learn how to return images, files, and structured data from OpenAI Agents SDK tools using ToolOutputImage, ToolOutputFileContent, and ToolOutputText.
Configure STT and TTS models for OpenAI voice agent pipelines — Whisper integration, language and prompt settings, voice selection, streaming TTS, and custom model implementations.
Master OpenAIResponsesCompactionSession for automatic and manual compaction of long agent conversations including token management, custom triggers, and compaction strategies.
Learn how to use the @function_tool decorator to give OpenAI agents the ability to call Python functions. Covers type hints, docstrings, timeouts, and Pydantic validation.
Learn how to build resilient agent tool pipelines using timeouts, failure_error_function, and tool_error_formatter in the OpenAI Agents SDK.
Add function tools to voice agents for booking appointments, searching databases, processing payments, and executing real-time actions with audio feedback during tool execution.
Master voice activity detection algorithms, turn-taking strategies, overlapping speech handling, and silence threshold tuning to build natural-sounding conversational AI agents.
Learn how to control sensitive data in OpenAI Agents SDK traces using trace_include_sensitive_data, environment variables, and GDPR-compliant tracing strategies for production AI systems.
Build a comprehensive analytics pipeline for chat agents using OpenAI's tracing system to extract intent, sentiment, topics, and performance metrics from every conversation.
Get notified when we publish new articles on AI voice agents, automation, and industry insights. No spam, unsubscribe anytime.
Try our live demo -- no signup required. Talk to an AI voice agent right now.
© 2026 CallSphere Inc. All rights reserved.
Made within San Francisco
