Telnyx Voice AI

Telnyx Voice AI provides a configurable AI assistant layer on top of Telnyx's communications network. Teams can combine conversational orchestration, speech models, LLMs, phone numbers, inbound and outbound calling, messaging, and call control, or use Conversation Relay with their own reasoning service.

Editorial research · Reviewed Jul 10, 2026

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Official Telnyx account signup; identity, number, and payment verification may apply.

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Quick facts

Platform type

Developer API

Inbound calls

Yes

Outbound calls

Yes

Human handoff

Yes

Setup difficulty

Technical

Pricing model

Component pricing for orchestration, telephony, STT, TTS, and models

Developer friendly

Yes

Pricing details

Telnyx lists a $0.05/min Conversational AI base rate. Telephony, phone numbers, STT, TTS, LLM inference, messaging, recording, and optional features add cost; volume contracts may differ.

Integrations

Telnyx Voice APISIPPhone NumbersSMSCustom APIExternal LLMsLiveKit

Data and permissions

Voice agents may talk to customers, access records, record calls, and trigger external actions.

Can read customer data

Can write or update external systems

Can send messages

Can trigger workflows

Requires API keys

Records calls

Human approval available

Complete required KYC and messaging registration, secure API keys and webhooks, configure recording and retention, obtain outbound consent, and validate every tool or system write at the application layer.