Release notes

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.

Telnyx Verify and Verified Numbers now support DTMF extensions, enabling verification of phone numbers behind IVR systems. Automatically navigate IVR menus to complete verification calls without manual intervention.

Streamline your SMS campaigns and cut costs by automatically targeting only mobile recipients, eliminating wasted messages on undeliverable landlines.