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Field Notes

Blog.

Latest news, product updates, and field guides from the Finn team.

105 posts · page 4 of 9

Voice AI Warm Transfer: Context Handoff Done Right

Voice AI Warm Transfer: Context Handoff Done Right

Stop customers repeating themselves on transfer. The architecture for voice AI warm transfer: transcript, intent, sentiment, and screen-pop handoff.

July 26, 2026

Low-Latency Voice AI: The Full Latency Budget (2026)

Low-Latency Voice AI: The Full Latency Budget (2026)

The vendor-agnostic latency budget for production voice agents: STT, endpointing, LLM TTFT, TTS and telephony, mic to speaker.

July 26, 2026

AI Scheduling That Answers the Phone

AI Scheduling That Answers the Phone

Search "ai scheduling tools" and you get a wall of listicles ranking calendar widgets — Calendly, Cal.com, Motion, Reclaim. All useful. None of them…

July 26, 2026

AI Voice Escalation Workflows: The Engineering Guide

AI Voice Escalation Workflows: The Engineering Guide

How AI voice agents detect handoff need and warm-transfer to humans over SIP — confidence, sentiment, context passing, and the failure modes vendors hide.

July 26, 2026

Google Cloud Speech Recognition: A 2026 Guide

Google Cloud Speech Recognition: A 2026 Guide

For telephony, LINEAR16 at 8,000 Hz matches standard PSTN audio. MULAW (G.711) is also supported, which matters for SIP trunks that don't transcode.

July 26, 2026

AI Phone Call Vendors in 2026: Cost, Legality, Buyer Guide

AI Phone Call Vendors in 2026: Cost, Legality, Buyer Guide

Neutral teardown of Bland, Retell, Vapi, and Finn. Real per-minute costs decomposed (STT+LLM+TTS+telco), TCPA plain English, and a 12-question buyer checklist.

July 26, 2026

AI Phone Agents for Financial Services: A Compliance Guide

AI Phone Agents for Financial Services: A Compliance Guide

AI phone agents for financial services, mapped to TCPA, FDCPA, Reg E & PCI. What voice AI can legally automate in lending, collections & support.

July 26, 2026

AI Appointment Scheduling for Healthcare: Cut No-Shows

AI Appointment Scheduling for Healthcare: Cut No-Shows

A voice-first playbook for AI appointment scheduling in healthcare: inbound booking, EHR write-back, reminder cadence, and HIPAA/TCPA guardrails.

July 26, 2026

Speech Recognition for Voice: How Machines Hear You

Speech Recognition for Voice: How Machines Hear You

How ASR turns a caller's voice into text a system can act on: the metrics that decide if it's good enough, and what breaks in production.

July 26, 2026

AI Voice Agents: How They Work & How to Build One

AI Voice Agents: How They Work & How to Build One

AI voice agents explained: how the STT-LLM-TTS pipeline works, real use cases, latency budgets, and how to build one that answers the phone.

July 26, 2026

Sub-150ms Speech Synthesis: Optimizing WaveGlow Voice AI

Sub-150ms Speech Synthesis: Optimizing WaveGlow Voice AI

A technical guide to real-time speech synthesis latency. Learn how to optimize WaveGlow, WebRTC, and browser APIs to achieve sub-150ms mouth-to-ear latency.

July 26, 2026

Universal Speech to Text: Sub-120ms Pipelines

Universal Speech to Text: Sub-120ms Pipelines

A deep dive into building a low-latency, hybrid ASR pipeline using Conformer-CTC and Faster-Whisper. Optimize for multilingual telecom nodes.

July 26, 2026