Release notes

Telnyx now hosts Deepgram’s Flux Conversational Speech Recognition model inside its global network. Running Flux at the edge eliminates public cloud hops, enabling sub-second transcription and faster AI responses. The model detects end-of-turns in ~260 ms, supports barge-in, and simplifies voice agent design with unified transcription and turn detection. Available now in Mission Control and the Telnyx Voice AI API.

See abandoned outbound traffic at a glance in the Mission Control Portal. This metric helps you spot problematic traffic quickly so you can reduce wasted spend and take corrective actions.

We’ve simplified and accelerated speech recognition for AI Assistants by enabling native Azure Speech-to-Text (STT) support, no customer API key required.

Telnyx’s NaturalHD voices now generate Arabic speech directly from unvowelled script while still supporting explicit diacritics when needed. With new voices “haqq”, “qadir”, “layla”, “shams”, “sakina” tuned for Gulf Arabic, developers and IVR teams get accurate names, numbers and rhythms out of the box.

Telnyx has added new business registration fields to the Toll-Free Verification process via Portal and API. Get ahead of 2026 carrier requirements with stronger submissions.

We’ve expanded our Text-to-Speech capabilities to make the Telnyx TTS available as a standalone service, so you can generate lifelike speech in real time, independent of any telephony workflow. This new release lets developers use Telnyx, AWS Polly, and Azure voices through one simple API integration.

Telnyx has launched Wireless Blocklists, giving you precise control over where your SIMs connect, by country or by carrier.

We’ve added queue callback support to the Telnyx voice stack to give our customers a better way to manage call queues and reduce hold times.

Telnyx has deployed GPUs in Sydney, enabling ultra-low-latency, onshore Voice AI Agents that deliver natural, human-like conversations for Australian businesses.

Telnyx has launched HD Voice in Australia, introducing wideband audio for richer, more natural-sounding VoIP calls. Businesses can now deliver clearer conversations and a higher-quality calling experience for their customers.

Telnyx now lets you appeal rejected 10DLC campaigns directly in Mission Control Portal or via API, helping you resolve compliance issues faster and get campaigns approved sooner.

You can now connect Telnyx AI Assistants to any OpenAI-compatible API endpoint, including Bedrock, Azure OpenAI, or self-hosted inference servers. Bring your own LLM while keeping Telnyx’s real-time voice orchestration and low-latency pipeline.