RCS Messages Now Available on iPhone: Apple Introduces RCS with iOS 18 - messaging-channels -

Frequently Asked Questions

RCS messaging is typically activated automatically with iOS 18 if your carrier supports it. If not, go to Settings > Apps > Messages and enable the "RCS Messaging" toggle. If the option isn't visible, ensure your carrier supports RCS and your iOS is updated. You might also need to update your carrier settings via Settings > General > About.
RCS (Rich Communication Services) is a next-gen messaging protocol designed to replace SMS/MMS. It upgrades texting with features like high-resolution media sharing, read receipts, typing indicators, and enhanced group chats, providing a richer, more consistent experience across platforms.
Apple's move to RCS addresses the "green bubble" issue, the limited functionality when texting Android users. This shift towards interoperability improves cross-platform communication and reflects evolving industry trends and user demand for better messaging.
You should manually activate RCS if it's not automatically enabled after updating to iOS 18 and confirming your carrier supports it. This involves navigating to the Messages settings within the Apps section of your iPhone's Settings.
Yes, RCS is designed for cross-platform compatibility between iOS and Android devices. This allows for enhanced messaging features like high-quality media sharing and read receipts, regardless of the recipient's operating system.
Verify RCS support by checking your IMS status under Settings > General > About > Carrier (look for "Voice, SMS & RCS"). Alternatively, contact your carrier directly or consult Apple's "Wireless Carrier Support and Features" page for updated information.
Key RCS features include high-resolution media sharing, read receipts, typing indicators, improved group chats, Wi-Fi messaging, and automatic fallback to SMS/MMS if RCS is unavailable. These features enhance communication and provide a more consistent experience across different phone platforms.
iMessage uses end-to-end encryption within the Apple ecosystem. RCS employs encryption in transit for cross-platform messages, offering protection during transmission. RCS messages between Android devices using Google Messages are end-to-end encrypted. The industry is working towards interoperable end-to-end encrypted RCS.
If RCS is unavailable due to network issues or recipient incompatibility, messages automatically revert to traditional SMS/MMS. This fallback mechanism ensures message delivery even when RCS isn't supported.
If you encounter problems with RCS, check your internet connection, verify RCS is enabled in settings, restart your iPhone, update carrier settings, or contact your carrier for support if issues persist. These steps address common connectivity and configuration problems.
The future of RCS involves ongoing collaboration between carriers, device makers, and software providers. The GSMA is leading standardization efforts, with advancements like enhanced security, improved business messaging, and greater integration with other services planned to enrich the messaging experience.
If messaging another RCS-enabled iPhone user, message bubbles will match your iMessage color. When messaging Android users, bubbles might differ (often green), but RCS is active if you see enhanced features. Also, check your IMS status as detailed in section 8.2 of the article.
If RCS messages aren't sending to Android, it could be due to carrier incompatibility, network issues, or the recipient's device not supporting RCS. Verify both devices and carriers support RCS and ensure a stable internet connection.