Browse older CallSphere articles on AI voice agents, contact center automation, and conversational AI.
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PCM16 at 24kHz burns 384 kbps. Opus at 32 kbps delivers indistinguishable quality. The bandwidth math says use Opus. The vendor API math sometimes says use PCM16. Here is when each wins.
Understand how to evaluate text-to-SQL systems using the Spider and BIRD benchmarks, implement execution accuracy metrics, and build custom evaluation datasets for your specific database schema.
Dental practices are losing 25-40% of inbound calls. Here is how a 2026 AI voice agent handles eligibility checks, recall, and the reminder cadence that actually drops no-shows.
Stream microphone audio from a browser to FastAPI, fan out to OpenAI Realtime over WebSocket, and play model audio back — full Python tutorial with PCM16 24kHz.
Implement a text-to-SQL system using Anthropic's Claude API with tool use for SQL execution, multi-turn conversations, and structured output parsing for reliable database question answering.
Learn to automate desktop applications using PyAutoGUI combined with AI vision models. Covers screen recognition, coordinate mapping, multi-monitor setups, keyboard automation, and building robust desktop agents.
NIST's AI Risk Management Framework is voluntary on paper and mandatory in practice. Federal contractors, banks, and SaaS buyers all map RFPs to it. Here is a 90-day Govern-Map-Measure-Manage rollout for voice AI teams.
Use Claude Computer Use to read PDFs rendered in browser viewers — navigating pages, extracting text and tables, detecting annotations, and converting visual PDF content to structured data without file downloads.
Design robust communication protocols for multi-agent systems including message schemas, capability advertisement, negotiation protocols, and service discovery mechanisms with practical Python implementations.
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