Experience true HD Voice with Telnyx

15, Oct 2023

Today, we're excited to announce the release of HD Voice!

This release brings enhanced call audio quality for PSTN calls, currently exclusively available for our US customers. HD Voice ensures the highest quality audio through our SIP Trunking product for a better customer experience.

Feature Overview

With the HD Voice, US customers can unlock crystal-clear conversations tailored for more natural and immersive experiences.

This new feature is available for just $1/month on specific US numbers. Users can see which numbers have HD Voice enabled by searching by feature type in the Number Search and Order section of the portal.

Main Feature Highlights

With HD voice enabled, customers can expect:

  • Exceptional audio clarity: Experience audio clarity like never before, ensuring every conversation is of the highest audio quality possible.
  • Major carrier support: Compatible with top US carriers including Verizon, AT&T, US Cellular, and T-Mobile.
  • Codec flexibility: Tailor your audio with a choice of wideband codecs: OPUS, G.722, or AMR-WB.

Hear the difference for yourself in a sound clip from our recent blog demonstrating the differences between high-quality and HD voice codecs.

For a more in-depth feature breakdown and conditions and networks on which HD Voice is supported, read our HD Voice support article. Filter numbers by feature using Number Search in the Mission Control Portal to find numbers eligible for HD voice.

Contact our team of experts with any other questions you have about HD Voice!