How to Build a Voice AI Agent in 50 Lines: Twilio + OpenAI Realtime
Wire Twilio Media Streams to OpenAI Realtime in under 50 lines of Node.js. Real working code, mu-law to PCM16 transcoding, server VAD, barge-in, and production tips.
11 min read
Archive page 1064 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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Latest articles
Shopify Cart Abandonment Chat Agents: What Actually Recovers Carts in 2026
Average Shopify cart abandonment is 70.22% in 2026. Real-time AI chat recovers 20–35% versus 5–8% for email-only — here is the build pattern that works.
11 min read
A2P 10DLC for AI SMS in 2026: Brand, Campaign, and Carrier Reality
What US carriers actually require to deliver SMS from your AI voice agent: brand registration, campaign use cases, vetting tiers, and the message-blocking rules that took effect in 2025-2026.
11 min read
WebRTC for Telehealth: HIPAA + Low-Latency Patient Consults in 2026
How telehealth platforms run sub-150 ms WebRTC consults that pass a HIPAA Security Rule audit. Architecture, BAA pitfalls, and the CallSphere healthcare pattern.
12 min
The Proposed 2026 HIPAA Security Rule Update: What Changes for AI Vendors
OCR's December 2024 NPRM is the first major Security Rule overhaul in 20+ years and it lands hard on AI voice and chat vendors. Here is what is changing and how to prepare for the 2026 final rule.
12 min read
AI Voice Agent + Salesforce Agentforce 2: Apex Tools and Headless 360
Salesforce TDX 2026 turned the entire platform into MCP tools and APIs. We unpack how AI voice agents now plug directly into Agentforce 2 via Apex Invocable actions and the Agent Builder API.
11 min read
Build a Voice Agent in Go with Pion WebRTC and OpenAI Realtime
Wire Pion WebRTC in pure Go to OpenAI Realtime over a single PeerConnection. Real working code for SDP exchange, Opus tracks, data channel events, and barge-in.
13 min read
How Dental Practices in New York City Use AI Voice Agents in 2026
NYC has 11,230 dental businesses and a $9.9B dental market. Manhattan solo practices clear $1.5-2.2M/year — and most still miss 30% of inbound calls. Here is how a 2026 AI voice agent fixes that.
10 min read
Multilingual Chat Agents in 2026: Language Detection and Mid-Conversation Switching
AI chat agents now detect language from short messages and switch mid-conversation without a setting toggle. Here is the production pattern for code-switched buyers in 2026.
10 min read
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