3 Definitions, symbols and abbreviations

24.2473GPPMessaging service using the IP Multimedia (IM) Core Network (CN) subsystemRelease 17Stage 3TS

3.1 Definitions

IsComposing information This is a term used to indicate that an indication is sent to the communicating user when a user in entering a new message.

For the purposes of the present document, the following terms and definitions given in 3GPP TS 22.340 [11] apply:

Immediate messaging

Session based messaging

Session based messaging conferences

For the purposes of the present document, the following terms and definitions given in RFC 4975 [9] apply:

Host

Page-mode messaging

Session inactivity timer

Session-mode messaging

Session-mode messaging conferences

Visitor

For the purposes of the present document, the following terms and definitions given in 3GPP TS 24.147 [10] apply:

Conferencing Application Server

3.2 Abbreviations

For the purposes of the present document, the following abbreviations apply:

AS Application Server

CN Core Network

DM Data manipulator

DMS Data manipulation server

IM IP Multimedia

IMS IP Multimedia CN subsystem

IP Internet Protocol

MRFC Media Resource Function Controllers

MRFP Media Resource Function Processors

MSRP Message Session Relay Protocol

SBLP Service Based Local Policy

SDP Session Description Protocol

SIP Session Initiation Protocol

UE User Equipment

URL Uniform Resource Locator