RCS v3.1 Update Brings Crystal-Clear Voice Messages with Advanced Codec Support

In the ever-evolving world of mobile communication, the ability to send high-quality voice messages has become a must-have. With the rollout of RCS v3.1 (Rich Communication Services), Android users can now expect cleaner, clearer, and more efficient voice messages — thanks to new codec enhancements designed to boost audio fidelity, even under challenging network conditions.

But what exactly does this update mean for the average user — and why is it a big deal?

What Is RCS and Why Is It Important in 2025?

RCS (Rich Communication Services) is the industry-standard successor to SMS and MMS, offering users a rich chat experience on Android. Unlike basic texting, RCS supports read receipts, typing indicators, group messaging, high-resolution media sharing, and now, with v3.1, improved voice messaging.

Adopted by most Android manufacturers and carriers globally — and baked into apps like Google Messages — RCS aims to bring Android messaging up to par with services like iMessage and WhatsApp, but without needing a separate third-party app.

What’s New in RCS v3.1? A Closer Look at Voice Message Upgrades

The standout enhancement in RCS v3.1 is its support for high-performance voice codecs, particularly EVS (Enhanced Voice Services) and Opus. These codecs enable studio-like voice clarity and more reliable transmission, especially over low-bandwidth or unstable networks.

1. EVS (Enhanced Voice Services)

Used in HD voice and VoLTE calls, EVS is now making its way into messaging. It delivers ultra-wideband audio, higher bitrates, and better compression — giving voice messages a more natural, fuller sound.

2. Opus Codec

Widely used in apps like Zoom, Discord, and Spotify, Opus is a flexible codec that adapts to real-time bandwidth, reducing latency and maintaining high-quality sound. Its integration into RCS ensures voice messages sound clean even on slower 3G networks.

Benefits of Codec Support in RCS v3.1

Is My Phone Compatible with RCS v3.1?

Most modern Android smartphones running Android 12 or higher and using Google Messages as the default messaging app are already compatible. However, carrier support is essential for the RCS backend features like voice message delivery.

To enable RCS:

• Open Google Messages > Settings > Chat features

• Ensure “Enable chat features” is toggled on

• Check for “Connected” status under Chat features

Not all regions or carriers have rolled out RCS v3.1 yet, so availability may vary.

Why This Matters for Android Users

Voice messaging continues to gain popularity, especially as more users prefer asynchronous, hands-free communication. With RCS v3.1:

• Voice messages are easier to understand

• Data consumption is lower without sacrificing quality

• The experience is consistent across devices and carriers

• No third-party apps required — it’s all native

This update aligns with a larger trend in Android development: building native tools that compete with OTT (over-the-top) messaging apps without relying on closed ecosystems.

Looking Ahead: What’s Next for RCS?

The RCS ecosystem continues to evolve rapidly. With Google, Samsung, and most major carriers backing the protocol, expect to see:

• AI transcription for voice messages

• End-to-end encryption for audio

• Cross-platform compatibility (including iOS via satellite or fallback)

As Android 15 and Pixel 10 integrate deeper RCS functionality in 2025, the user experience will only get smoother.

Conclusion

The RCS v3.1 update is a meaningful step forward for mobile voice messaging. With EVS and Opus codec support, users benefit from clearer, more reliable voice messages — even on older networks or limited data plans. As Android doubles down on rich communication experiences, RCS continues to redefine what texting and voice messaging should look and sound like in 2025.

If you’re using Android, it’s time to make sure your messaging app and carrier support RCS v3.1 — because better voice messaging is just a few taps away.