Browse older CallSphere articles on AI voice agents, contact center automation, and conversational AI.
From the blog
LLMLingua compresses prompts up to 20x with ~1.5pt accuracy drop. We dissect LLMLingua-2's BERT-classifier approach, where it dominates (long RAG, doc Q&A) and where it breaks (tool calling), and how CallSphere blends it with prompt caching for compounding savings.
AssemblyAI Universal-3 Pro Streaming returns immutable transcripts in ~300ms. Build a raw-WebSocket voice agent — Node.js code, endpointing, pitfalls.
Diagnose and fix VoIP call quality issues with expert troubleshooting. Learn MOS scoring, jitter analysis, packet loss remediation, and monitoring.
Eligibility and benefits questions can delay intake and tie up staff. Learn how AI chat and voice agents streamline the workflow before a human steps in.
OpenAI Agents SDK introduced first-class voice handoffs in 2026. Manager vs decentralized patterns, session.update events, and how they work in production.
Anthropic reports 10,000+ active public MCP servers and 97M monthly SDK downloads. Here is what MCP means for production chat agents.
About 8–10% of users will need TURN. Get it wrong and a healthy chunk of your AI calls fail with a black hole and no error. Here is the production checklist.
Index a knowledge base with text-embedding-3-large into ChromaDB, expose a retrieve tool to your voice agent, and ground every answer in real documents — full Python tutorial.
Khan Academy admits only 15% of students with Khanmigo access use it regularly. Here is what 108M interactions teach us about education chat agents in 2026.
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