Rich Communication Services
|Operating system||Apple iOS, Android, Windows 10 Mobile|
Rich Communication Services is a communication protocol between mobile-telephone carriers and between phone and carrier, aiming at replacing SMS messages with a text-message system that is more rich, provide phonebook polling (for service discovery), and transmit in-call multimedia.
It is marketed under the names RCS, joyn, Jio4GVoice, and Message+.
The Rich Communication Suite (RCS) industry initiative was formed by a group of industry promoters in 2007. In February 2008 the GSM Association officially became the project ‘home’ of RCS and an RCS steering committee was established by the organisation.
The scope of the steering committee’s work was to entail the definition, testing, and integration of the services in the application suite known as RCS. Three years later, the RCS project released a new specification – RCS-e (e = ‘enhanced’), which included various iterations of the original RCS specifications. The GSMA program is now called Rich Communication Services.
RCS combines different services defined by 3GPP and Open Mobile Alliance (OMA) with an enhanced phonebook. Another phone's capabilities and presence information can be discovered and displayed by a mobile phone. RCS reuses 3GPP specified IMS core system as the underlying service platform taking care of issues such as authentication, authorization, registration, charging and routing.
Five releases of the RCS specifications have been made to date. Each release expanded the scope of its predecessor.
- Release 1
- Offered the first definitions for the enrichment of voice and chat with content sharing, driven from an RCS enhanced address book.
- Release 2
- Added broadband access to RCS features: enhancing the messaging and enabling sharing of files.
- Release 3
- Focused on the broadband device as a primary device.
- Release 4
- Included support for LTE.
- Release 5
- Global interoperability is a key aspect of these specifications.
The following standardized services are a part of the specifications of RCS:
- Standalone Messaging
- 1-to-1 Chat
- Group Chat
- File Transfer
- Content Sharing
- Social Presence Information
- IP Voice call
- Best Effort Video call
- Geolocation Exchange
- Audio Messaging
- Network based blacklist
- Capability Exchange based on Presence or SIP OPTIONS
The GSMA defined a series of specific implementations of the RCS specifications. The RCS specifications often define a number of options for implementing individual communications features, resulting in challenges in delivering interoperable services between carriers. The RCS specifications aim to define a more specific implementation that promote standardization and simplify interconnection between carriers.
At this time there are two major relevant releases:
- joyn Hot Fixes - based upon the RCS 1.2.2 specification (previously known as RCS-e), this includes 1:1 chat, group chat, MSRP file sharing and video sharing (during a circuit switched call). Services based upon this specification are live in Spain, France and Germany.
- joyn Blackbird Drop 1 - based upon the RCS 5.1 specification, this extends the joyn Hot Fixes service to include HTTP file sharing, location sharing, group file sharing, and other capabilities such as group chat store and forward. joyn Blackbird Drop 1 is backward compatible with joyn Hot Fixes. Vodafone Spain's network is accredited for joyn Blackbird Drop 1, and Telefónica and Orange Spain have also been involved in interoperability testing with vendors of joyn Blackbird Drop 1 clients. A number of client vendors are accredited to joyn Blackbird Drop 1.
Two or more future releases are planned:
- joyn Blackbird Drop 2 - also based upon the RCS 5.1 specification, this will primarily add IP voice and video calling. The test cases for joyn Blackbird Drop 2 have yet to be released by the GSMA.
- joyn Crane - Already available in GSMA web page.
According to GSMA PR, Rich Communication Services (RCS) carriers from around the globe supporting the RCS standard include AT&T, Bell Mobility, Bharti Airtel, Deutsche Telekom, Jio, KPN, KT Corporation, LG U+), Orange, Orascom Telecom, Rogers Communications, SFR, SK Telecom, Telecom Italia, Telefónica, TeliaSonera, Telus, Verizon and Vodafone. There is however very little evidence in the field that RCS has wide (or even any) uptake in the market.
|Vodafone||Spain||2012|| Launched the beta version of RCS at beginning of 2012, branded as joyn.|
|Movistar||Spain||June 2012|| Branded as joyn.|
|Vodafone||Germany||August 2012|| First Branded as joyn. Since November 2013 Message+.|
|Orange||Spain||November 2012|| Branded as joyn.|
|MetroPCS||United States||November 2012|| Branded as joyn.|
|KT||South Korea||December 2012|| Branded as joyn.|
|LG U+||South Korea||December 2012|| Branded as joyn.|
|SK Telecom||South Korea||December 2012|| Branded as joyn.|
|Deutsche Telekom||Germany||February 2013|| Branded as Message+|
|Telcel||Mexico||February 2013|| Branded as joyn.|
|Claro||Argentina||May 2013|| Branded as joyn.|
|Claro||Colombia||May 2013|| Branded as joyn.|
|Claro||Peru||May 2013|| Branded as joyn.|
|Orange||France||June 2013|| Branded as joyn.|
|Claro||Brazil||August 2013|| Branded as joyn.|
|Claro||Ecuador||August 2013|| Branded as joyn.|
|Sprint||United States||October 2013||Launched as a separate application|
|Vodafone||Albania||April 2014|| Branded as Message+.|
|Telekom||Romania||June 2014|| Branded as joyn.|
|Slovak Telekom||Slovakia||June 2014|| Branded as joyn.|
|Vodafone||UK||September 2014|| Branded as Message+.|
|O2||Germany||2015|| Branded as Message+Call.|
|T-Mobile US||United States||July 2015|| Branded as Advanced Messaging.|
|AT&T||United States||November 2015|| Branded as Advanced Messaging and Video Call.|
|MTS||Russia||December 2015|| Branded as MTS Connect.|
|Vodafone||Portugal|| Branded as Message+.|
|Jio||India||September 2016|| Branded as Jio4GVoice.|
|Sprint||United States||November 2016|| Branded as RCS.|
|Rogers Wireless||Canada||December 2016|
|Fido Solutions||Canada||December 2016|
GSMA RCS accreditation
The RCS Interop and Testing (IOT) accreditation process  was started by the GSMA in order to improve the quality of testing, increase transparency, drive scale, minimize complexity and accelerate time-to-market (TTM) of joyn services. Companies need to undertake the IOT process from the GSMA to apply for a license to use the service mark joyn.
"Accredited" means that the device, client or network has undertaken a series of test cases (150 to 300) in a specific set of conditions, provided test results and traces that have been analysed by the GSMA RCS IOT team and any IOT issues arising resolved with the submitter.
"Accreditation Ready" is the designation awarded to a hosted RCS service that has undertaken the same series of test cases as mobile network operator operator, provided test results and traces that have been analysed by the GSMA RCS IOT team and any IOT issues arising resolved with the submitter.
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- Operators, Ecosystem & Hosted Solutions | Network 2020
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- GSMA Accreditation and Certification by Global Certification Forum (GCF) | Network 2020
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