3 Definitions, symbols and abbreviations

22.3403GPPIP Multimedia Subsystem (IMS) messagingStage 1TS

3.1 Definitions

Immediate messaging: A type of IMS Messaging service by which the sender expects immediate message delivery in (near) real time fashion

IMS Messaging services: A group of services, supported by capabilities of the 3GPP IP Multimedia Subsystem 3GPP TS 22.228 [7], that allows an IMS user to send and receive messages to other users. IMS messaging services comprise of one or more types: Immediate messaging and Session based messaging.

Session based messaging: A type of IMS Messaging service by which the sender expects immediate message delivery in (near) real time fashion . In addition the sender(s) and the receiver(s) have to join to a messaging session e.g. chat room, before message exchange can take place

3.2 Abbreviations

IP Internet Protocol

IMS IP Multimedia Subsystem

OMA Open Mobile Alliance