Voice AI Blog

Build a better voice assistant

Practical guides to plan a useful conversation, test the result and connect real callers.

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259 articles

Choose between managed provider usage and direct accounts using workload, operational ownership, billing visibility and supported configurations.

Understand the units behind a voice AI bill and how platform fees, generated audio, telephony and recurring resources combine.

A call-level method for investigating spend, distinguishing reservations from charges and including direct provider and carrier bills.

Understand how telephone APIs, SIP, voice runtimes and business actions fit together before building or buying an AI calling system.

Connect Twilio Elastic SIP Trunking to a voice runtime with clear inbound/outbound setup, caller identity and failure testing.

Separate conversation quality from concurrency testing, choose authorized endpoints, set spend limits and verify cleanup after each call.

Plan a Claude-powered voice cascade with transcription, synthesis, tool execution and honest action confirmation.

Use Groq-hosted models in a voice cascade while measuring turn handling, tool correctness, synthesis and total caller latency.

Configure a supported ElevenLabs voice for a cascade assistant and evaluate pronunciation, streaming, interruption and generated-speech cost.

Choose and evaluate a Deepgram transcription path using language, vocabulary, turn events, caller corrections and actual call evidence.

A Telnyx setup guide focused on account readiness, numbers, LiveKit SIP routing, telephone acceptance and recurring costs.

Compare Cartesia and ElevenLabs voices using model versions, pronunciation, streaming, interruptions and the cost of your actual conversation.

Showing 109–120 of 259 articles.

Describe the calls your business receives, review an editable draft and practice in your browser.