Sherlock Calls Blog https://usesherlock.ai/blog Practical guides for teams running voice AI in production. Debugging, cost control, and observability for Twilio, ElevenLabs, Vapi, and beyond. en-us Tue, 03 Mar 2026 00:00:00 GMT https://usesherlock.ai/icon-512.png Sherlock Calls Blog https://usesherlock.ai/blog <![CDATA[Build in Public, Week 3: Encryption, Token Billing, Free Tools, and 26 Compare Pages]]> https://usesherlock.ai/blog/build-in-public-week-3-encryption-token-billing-admin https://usesherlock.ai/blog/build-in-public-week-3-encryption-token-billing-admin Tue, 03 Mar 2026 00:00:00 GMT Product Updates <![CDATA[How to Cut Voice AI Costs by 40% (2026 Guide)]]> https://usesherlock.ai/blog/how-to-reduce-voice-ai-costs https://usesherlock.ai/blog/how-to-reduce-voice-ai-costs Mon, 02 Mar 2026 00:00:00 GMT Tutorials <![CDATA[Voice Ops Cost Monitoring: The Complete Setup Guide (2026)]]> https://usesherlock.ai/blog/voice-operations-cost-monitoring-guide https://usesherlock.ai/blog/voice-operations-cost-monitoring-guide Mon, 02 Mar 2026 00:00:00 GMT Tutorials <![CDATA[The Hidden Costs of Your Twilio + Voice AI Stack (2026)]]> https://usesherlock.ai/blog/hidden-costs-twilio-voice-ai-stack https://usesherlock.ai/blog/hidden-costs-twilio-voice-ai-stack Mon, 02 Mar 2026 00:00:00 GMT Deep Dives <![CDATA[Build in Public, Week 2: The Demo, 9 Viral Loops, and Taming Slack]]> https://usesherlock.ai/blog/build-in-public-week-2-demo-viral-loops-slack https://usesherlock.ai/blog/build-in-public-week-2-demo-viral-loops-slack Mon, 02 Mar 2026 00:00:00 GMT Product Updates <![CDATA[Voice AI Call Failure Rates: What's Normal, What's a Red Flag, and How to Measure Yours]]> https://usesherlock.ai/blog/voice-ai-call-failure-rate-benchmarks https://usesherlock.ai/blog/voice-ai-call-failure-rate-benchmarks Sun, 01 Mar 2026 00:00:00 GMT Voice AI <![CDATA[How to Debug Twilio Call Failures in Production (2026 Guide)]]> https://usesherlock.ai/blog/how-to-debug-twilio-call-failures https://usesherlock.ai/blog/how-to-debug-twilio-call-failures Sat, 28 Feb 2026 00:00:00 GMT Tutorials <![CDATA[How to Reduce ElevenLabs TTS Latency in Voice AI Calls (2026 Guide)]]> https://usesherlock.ai/blog/how-to-reduce-elevenlabs-latency https://usesherlock.ai/blog/how-to-reduce-elevenlabs-latency Fri, 27 Feb 2026 00:00:00 GMT Tutorials <![CDATA[The Voice AI Stack in 2025: Twilio, ElevenLabs, Vapi, Retell — A Year in Review]]> https://usesherlock.ai/blog/voice-ai-stack-2025-year-in-review https://usesherlock.ai/blog/voice-ai-stack-2025-year-in-review Thu, 26 Feb 2026 00:00:00 GMT Voice AI <![CDATA[Debugging Vapi Calls: The Complete Guide to Finding Root Causes Fast]]> https://usesherlock.ai/blog/vapi-call-debugging-guide https://usesherlock.ai/blog/vapi-call-debugging-guide Wed, 25 Feb 2026 00:00:00 GMT Developer Tools <![CDATA[Why Engineering Teams Are Moving Incident Response into Slack (and How to Do It Right)]]> https://usesherlock.ai/blog/slack-for-incident-response-engineering-teams https://usesherlock.ai/blog/slack-for-incident-response-engineering-teams Tue, 24 Feb 2026 00:00:00 GMT Observability <![CDATA[Build in Public, Week 1: 9 Providers, Stripe Live, and a Legal Stack in 5 Days]]> https://usesherlock.ai/blog/build-in-public-week-1-providers-billing-seo https://usesherlock.ai/blog/build-in-public-week-1-providers-billing-seo Mon, 23 Feb 2026 00:00:00 GMT Product Updates <![CDATA[ElevenLabs Latency: Why Your Voice Agent Is Slow and How to Fix It]]> https://usesherlock.ai/blog/elevenlabs-latency-optimization-guide https://usesherlock.ai/blog/elevenlabs-latency-optimization-guide Sun, 22 Feb 2026 00:00:00 GMT Voice AI <![CDATA[Voice AI Webhook Failures: How to Find, Fix, and Prevent Lost Call Data]]> https://usesherlock.ai/blog/voice-ai-webhook-failures-guide https://usesherlock.ai/blog/voice-ai-webhook-failures-guide Sat, 21 Feb 2026 00:00:00 GMT Developer Tools <![CDATA[Vapi Webhook Debugging Guide: Why Webhooks Fail and How to Fix Them]]> https://usesherlock.ai/blog/vapi-webhook-debugging-guide https://usesherlock.ai/blog/vapi-webhook-debugging-guide Fri, 20 Feb 2026 00:00:00 GMT Tutorials <![CDATA[From Ad-Hoc Fixes to Systematic Monitoring: A Voice AI Quality Framework]]> https://usesherlock.ai/blog/voice-ai-quality-framework-systematic-monitoring https://usesherlock.ai/blog/voice-ai-quality-framework-systematic-monitoring Thu, 19 Feb 2026 00:00:00 GMT Strategy <![CDATA[How to Cut Voice AI Call Costs by 40%: Twilio + ElevenLabs Optimization Guide]]> https://usesherlock.ai/blog/voice-ai-call-cost-optimization https://usesherlock.ai/blog/voice-ai-call-cost-optimization Wed, 18 Feb 2026 00:00:00 GMT Guides <![CDATA[TTFB in Voice AI: Measuring and Optimizing Time to First Audio Byte]]> https://usesherlock.ai/blog/time-to-first-byte-voice-ai https://usesherlock.ai/blog/time-to-first-byte-voice-ai Tue, 17 Feb 2026 00:00:00 GMT Deep Dives <![CDATA[We Shipped a Call Detective for Slack: Sherlock Calls Is Live]]> https://usesherlock.ai/blog/build-in-public-1-sherlock-calls-launch https://usesherlock.ai/blog/build-in-public-1-sherlock-calls-launch Mon, 16 Feb 2026 00:00:00 GMT Product Updates <![CDATA[Building Voice AI in Production: What Nobody Tells You Before You Launch]]> https://usesherlock.ai/blog/voice-ai-production-readiness-what-nobody-tells-you https://usesherlock.ai/blog/voice-ai-production-readiness-what-nobody-tells-you Fri, 13 Feb 2026 00:00:00 GMT Strategy <![CDATA[The Complete Guide to Voice AI Cost Monitoring]]> https://usesherlock.ai/blog/voice-ai-cost-monitoring-guide https://usesherlock.ai/blog/voice-ai-cost-monitoring-guide Tue, 10 Feb 2026 00:00:00 GMT Voice AI <![CDATA[Why Slack Is the Right Interface for Voice AI Operations]]> https://usesherlock.ai/blog/slack-first-voice-ai-operations https://usesherlock.ai/blog/slack-first-voice-ai-operations Thu, 05 Feb 2026 00:00:00 GMT Strategy <![CDATA[How to Debug ElevenLabs Call Failures Without Writing a Single Query]]> https://usesherlock.ai/blog/how-to-debug-elevenlabs-call-failures https://usesherlock.ai/blog/how-to-debug-elevenlabs-call-failures Sun, 01 Feb 2026 00:00:00 GMT Tutorial <![CDATA[Debugging Dropped Calls in Production: A Step-by-Step Framework]]> https://usesherlock.ai/blog/debugging-dropped-calls-production-framework https://usesherlock.ai/blog/debugging-dropped-calls-production-framework Fri, 30 Jan 2026 00:00:00 GMT Tutorial <![CDATA[The 5 Metrics Every Voice AI Team Should Be Watching — But Is Not]]> https://usesherlock.ai/blog/five-metrics-voice-ai-teams-should-watch https://usesherlock.ai/blog/five-metrics-voice-ai-teams-should-watch Fri, 23 Jan 2026 00:00:00 GMT Voice AI <![CDATA[Why Voice AI Teams Need Observability (And Why Dashboards Are Not Enough)]]> https://usesherlock.ai/blog/why-voice-ai-teams-need-observability https://usesherlock.ai/blog/why-voice-ai-teams-need-observability Tue, 20 Jan 2026 00:00:00 GMT Voice AI <![CDATA[The Latency Problem: How ElevenLabs TTS Timing Silently Breaks Your Call Flows]]> https://usesherlock.ai/blog/elevenlabs-latency-tts-call-quality https://usesherlock.ai/blog/elevenlabs-latency-tts-call-quality Fri, 16 Jan 2026 00:00:00 GMT Tutorial <![CDATA[The Real Cost of a Failed AI Call — And Why It Is Ten Times What You Think]]> https://usesherlock.ai/blog/real-cost-failed-ai-call https://usesherlock.ai/blog/real-cost-failed-ai-call Fri, 09 Jan 2026 00:00:00 GMT Business <![CDATA[The Voice AI Observability Checklist Every Operations Team Needs in 2026]]> https://usesherlock.ai/blog/voice-ai-observability-checklist-2026 https://usesherlock.ai/blog/voice-ai-observability-checklist-2026 Tue, 06 Jan 2026 00:00:00 GMT Strategy <![CDATA[The Voice AI Black Box: Why Operations Teams Are Flying Blind]]> https://usesherlock.ai/blog/voice-ai-black-box-operations-visibility https://usesherlock.ai/blog/voice-ai-black-box-operations-visibility Fri, 02 Jan 2026 00:00:00 GMT Voice AI