How to Build a Node.js Voice Agent with ElevenLabs Conversational AI
Wire ElevenLabs Conversational AI to an Express server, expose a public agent over WebSocket, and trigger client tools — full TypeScript tutorial for 2026.
11 min read
Archive page 891 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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FCC Robocall and AI-Call Disclosure Rules: What Changed 2024-2026
The February 2024 FCC ruling made AI-generated voice calls 'artificial' under the TCPA. The September 2024 NPRM proposes mandatory AI disclosure. Here is the 2026 state of play and what your agent must say.
10 min read
WebRTC for Customer Service: The Glia + Talkdesk + LivePerson Stack (2026)
Modern CCaaS desktops are WebRTC under the hood. Here is how Glia, Talkdesk, and LivePerson use it — and how CallSphere plugs an AI agent into the same socket.
12 min
Real-Time PII Redaction in Chat Agents: Guardrails for 2026
OpenAI shipped Privacy Filter as an open-weight PII model in 2026 and the EU AI Act high-risk obligations apply from August 2. Here is how to put real-time redaction in front of a chat agent.
10 min read
SBC Topology Hiding for AI Voice Gateways in 2026: What to Strip and Why
If your AI voice gateway leaks Via headers, internal IPs, or model server hostnames, you have published your attack surface. Here is the SBC topology-hiding playbook for AI voice in 2026.
10 min read
WebRTC DataChannel as a Metadata Side-Channel for AI Voice Agents (2026)
DataChannel is how production AI voice agents ship function calls, interrupts, and live UI state next to the audio. Here is the 2026 pattern.
10 min
AI Insurance Eligibility Verification: 270/271 Without PHI Over-Exposure
X12 270/271 eligibility transactions are HIPAA-mandated and well understood. What is new in 2026 is the AI agent driving them — and the minimum-necessary discipline that AI demands.
10 min read
Voice AI for Veterinary Clinics: Emergency Triage and After-Hours in 2026
Vet practices receive 75-150 calls a day, 40% land outside business hours, and the average clinic misses 1 in 4. AI triage now safely categorizes 82% of after-hours calls and recovers 40% more emergency appointments. Here is how it ships.
11 min read
Chat for API Debugging in B2B SaaS: Reading Logs and Suggesting Fixes in 2026
DevOps teams using autonomous AI agents save three hours daily on debugging. The same pattern works in chat support — read the customer's logs, isolate the failed call, suggest the fix. Here is how.
11 min read
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