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5d ago

GSMA Unveils RCS Universal Profile 3.1 With High-Fidelity Voice Notes

This update delivers studio-quality voice notes over RCS with xHE-AAC encoding, pushing notifications to enable messaging without a constant network connection.

Google Messages RCS Chat features on a Pixel 6
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Overview

  • GSMA announced Universal Profile 3.1 on July 25 as the latest evolution of the RCS specification.
  • The new profile adds xHE-AAC encoding support, enabling users to record and send clearer voice messages alongside efficient playback.
  • A push-notification delivery system allows RCS clients to go offline and still receive incoming messages without a persistent network link.
  • Carriers, device manufacturers and messaging apps are preparing to implement the v3.1 enhancements in their upcoming RCS deployments.
  • RCS traffic topped 1 billion daily messages in May after Apple integrated the standard in iOS 18, underscoring its growing adoption.