RCS doesn't work

• /e/ version: 1.17-s-20231111351092-dev-FP3
• Device model(s): Fairphone 3
• Developer mode enabled: yes
• Device rooted: no
• Trackers blocker enabled: yes (irrelevant)

Summary

Rich Communication Services are not available on the FP3 running /e/ OS.

The problem

Since the built-in SMS app (foundation.e.message) does not support RCS natively, it may be assumed that RCS could at least be used via a third-party app, such as Google Messages. However, that is not possible, not even when installing the Google Carrier Services.

Steps to reproduce

0. Use a SIM card of a telecom provider that supports RCS (my provider does).
1. Install Google Carrier Services
2. Install Messages by Google
3. Open Messages, go to the RCS option in the settings.
4. It says: “RCS is not supported by your device.”

What is the current behavior?

RCS is not supported.

What is the expected correct behavior?

RCS should be supported.

Technical informations

Relevant logs (adb logcat)

none

Relevant screenshots

none

Solutions

Workaround

none

Possible fixes

???