RAG for SMB Chat Widgets in 2026: From Experiment to Default
67% of production LLM deployments now use RAG, up from 31% in 2024. Here is the SMB chat widget pattern that ships in under a week.
11 min read
Archive page 870 of 1230
AI Voice Agent Insights & Guides
Browse older CallSphere articles on AI voice agents, contact center automation, and conversational AI.
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FastAPI WebSocket Production Patterns for AI Agents in 2026
How to run FastAPI WebSockets in production for AI voice agents: connection managers, the broadcast bug everyone hits, JWT auth on upgrade, and Uvicorn worker tuning.
11 min read
Encrypting AI Call Audio at Rest and in Transit: HIPAA in Practice
AES-256, TLS 1.3, FIPS 140 modules, and key rotation — the practical encryption pattern every HIPAA-aligned AI voice agent should run in 2026.
9 min read
WebRTC for Gaming: Proximity Voice Chat Patterns in 2026
Vivox is being replaced. Discord is dominant. Proximity chat is now table-stakes for extraction shooters. Here is the WebRTC blueprint that runs under it in 2026.
10 min
Build a Kotlin Android Voice Agent with the LiveKit SDK
Ship a native Android voice agent with Jetpack Compose and LiveKit's client SDK. Real working Kotlin code for permissions, room connect, and audio level animations.
11 min read
How MSPs in Phoenix Use AI Voice Agents in 2026
Phoenix MSPs charge $125-$185/user/month. Tickets surge during business hours and afterhours pages cost $$$ in oncall. Here is how a 2026 voice agent triages tickets without a NOC.
9 min read
Chat Agent Feedback Loops in 2026: From Thumbs Up/Down to Real Eval Sets
Thumbs data alone is too noisy to train on. Here is how to build a feedback loop that compounds — escalation reasons, annotation queues, and weekly eval refresh.
10 min read
SIP INFO for DTMF in AI Agent Flows in 2026: When Out-of-Band Beats RTP Events
RFC 4733 RTP events handle most DTMF, but SIP INFO is the workaround when carriers strip telephone-events or when your AI agent needs out-of-band signaling. Here is when to use which in 2026.
10 min read
Reading RTCStatsReport for AI Voice Agents: 2026 Field Guide
RTCStatsReport is the only telemetry source that reflects what the user actually heard. Here is the 2026 mapping from getStats fields to AI voice SLOs.
11 min
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