RCS Specifications
RCS leverages the various existing standards, thus RCS takes on board different services defined by e.g. 3GPP and Open Mobile Alliance (OMA) and combines them with the Enhanced Phonebook. This allows the service capabilities as well as presence information of the different recipients to be shown in the terminal phonebook application.
RCS reuses the capabilities of 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
- The most recent release, 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
- Network based blacklist
- Capability Exchange based on Presence or SIP OPTIONS
Read more about this topic: Rich Communication Suite