Call Recording Retention Policies: CallSphere vs Vapi Defaults
How long should you keep call recordings? CallSphere ships per-vertical retention defaults; Vapi customers DIY. Compare lifecycle and erasure flows.
11 min read
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AI Voice Agent Insights & Guides
Browse older CallSphere articles on AI voice agents, contact center automation, and conversational AI.
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From the blog
Latest articles
IT Helpdesk RAG with ChromaDB: CallSphere 10 Agents vs Vapi
CallSphere's U Rack IT ships ChromaDB-backed RAG plus 10 IT specialist agents. Vapi has knowledge-base PDF upload but no specialist agent for it.
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Launch Voice AI in 7 Days: CallSphere Playbook vs Vapi Reality
A concrete day-by-day 7-day launch playbook for CallSphere, plus what is actually shipping in the same 7 days for a Vapi customer (still wiring vendors).
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The MCP Server Every Vibe Coder Needs in 2026 — Code-Review-Graph Deep Dive
Model Context Protocol gave Claude Code superpowers. Code-Review-Graph gave it a memory. Here are the 28 MCP tools that turn your editor into a real agentic IDE.
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Real-World Call Quality: CallSphere vs Vapi (User-Tested 2026)
User-tested call quality comparison of CallSphere vs Vapi in 2026 — interrupt handling, accent robustness, turn-taking, and hangup behavior scored.
12 min read
Slow Web Lead Response Is Killing Revenue: How Chat and Voice Agents Fix It
Website leads cool off in minutes. Learn how AI chat and voice agents capture, qualify, and route inbound demand before it goes cold.
11 min read
Suburb Intelligence Agents: Building on Vapi vs Buying CallSphere
CallSphere's Suburb Intelligence agent fuses schools, demographics, commute, and forecasts in real time. On Vapi, you build all of it. The data engineering breakdown.
14 min read
Sub-Agents in Claude Code 2.1: When and How to Spawn Them
A practical engineering deep dive into Claude Code 2.1 sub-agents, covering architecture, tradeoffs, and what production teams need to know about agent orchestration.
9 min read
MCP 1.0 Spec Freeze: What It Means for Tool Builders
Infrastructure-level look at MCP 1.0 spec, including Model Context Protocol, deployment topology, region availability, and cost considerations.
11 min read
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