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Rich Communication Services

Rich Communication Services
A thread of conversation and media in the Google Messages application on Android
DeveloperGSMA
TypeInstant messaging
Launch dateSeptember 15, 2008 (2008-09-15) (original specifications)
November 16, 2016 (2016-11-16) (Universal Profile specifications)
Operating system(s)Android 5 and later, iOS 18 and later
StatusActive
Websitewww.gsma.com/futurenetworks/rcs/

Rich Communication Services (RCS) is a communication protocol standard between mobile telephone carriers for the purpose of instant messaging, developed and defined by the GSM Association (GSMA). It aims to be a replacement of SMS and MMS, with a text-message system that is richer. RCS is also marketed as Advanced Messaging,[1] and was previously marketed as chat features,[2] joyn, SMSoIP,[3] Message+, and SMS+.[4]

RCS has been designed as an industry standard[5][6] to provide improved text messaging capabilities, and also to regain the influence of mobile network operators against individual OTT (over-the-top) services that have become prominent.[7] Features of RCS include high-resolution photo and video sharing, file sharing, typing indicators, read receipts, operation over mobile data or Wi-Fi, improved group chat functionality, and providing phonebook polling for service discovery. End-to-end encryption is not a feature of RCS specified by GSMA, instead deferring to the individual messaging clients to establish encryption;[8][9][10][11] Google has added support for this feature using RCS in their own text messaging app, Google Messages. RCS services are based on IP Multimedia Subsystem (IMS).[12]

As of 2020, RCS has rolled out across 90 cell operators in 60 countries globally.[13] In addition, RCS can be used anywhere with Google Messages on Android, where it is provided directly by Google via their own Jibe platform backend in place of a mobile operator's.[14][15] By 2023, there were 800 million active RCS users on Google's platform and 1.2 billion handsets worldwide supporting RCS.[16] Apple plans to support RCS in Messages with iOS 18 in the fall of 2024; RCS is also accessible through desktops via the web client of Google Messages[17] or via Microsoft Phone Link.[18]

  1. ^ "Advanced Messaging". T-Mobile Support. Retrieved 29 February 2024.
  2. ^ Friedman, Alan (23 February 2023). "Google drops "Chat" for "RCS" on Android". Phone Arena. Retrieved 26 February 2023.
  3. ^ "About joyn". GSMA. Archived from the original on 29 January 2013. Retrieved 7 March 2013.
  4. ^ "SMS+ - Telia.se". Telia.se (in Swedish). Retrieved 20 April 2018.
  5. ^ "What is RCS?". 3CX. Retrieved 9 July 2024.
  6. ^ Zecic, Una (3 June 2024). "The Impact of Apple's Embrace of RCS on Business Messaging". HORISEN. Retrieved 9 July 2024.
  7. ^ Delaney, John (1 December 2012). "RCS and Joyn: Keeping Operators at the Center of Communications" (PDF). GSMA. Retrieved 9 July 2024.
  8. ^ Bohn, Dieter (19 November 2020). "Google is rolling out end-to-end encryption for RCS in Android Messages beta". The Verge. Vox Media, Inc. Retrieved 28 November 2020.
  9. ^ Omara, Emad (June 2021). Technical Paper: Messages End-to-End Encryption Overview - (PDF). gstatic.com (Report). 1.1.
  10. ^ "Google Messages Gets End-to-End Encryption for Group Chats on Android". PCMAG. Retrieved 2 December 2022.
  11. ^ Li, Abner (2 December 2022). "Google Messages starts rolling out end-to-end encryption (E2EE) for group chats in beta". 9to5Google. Retrieved 2 December 2022.
  12. ^ https://www.gsma.com/solutions-and-impact/technologies/networks/rcs-frequently-asked-questions/
  13. ^ https://www.gsma.com/solutions-and-impact/technologies/networks/rcs/global-launches/
  14. ^ "Helping you connect around the world with Messages". Google. 19 November 2020. Retrieved 26 November 2023.
  15. ^ Knight, Julie (5 October 2023). "Another major carrier is moving its RCS services to Google Jibe". Android Police. Retrieved 9 July 2024.
  16. ^ MEF (21 November 2023). "RCS Business Messaging Takes Center Stage: Takeaways from RCS World 2023 - Blog". MEF. Retrieved 27 November 2023.
  17. ^ https://support.google.com/messages/answer/7611075
  18. ^ "Send and receive text messages from your PC - Microsoft Support". support.microsoft.com. Retrieved 9 July 2024.

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