Chapter 5. Messaging

There are currently many forms of messaging services available. In general, messaging entails sending a message from one entity to another. Messages can take many forms, include many types of data and be delivered in various ways. It is usual to have messages carry multimedia as well as text and be delivered either in near-real time as in many instant messaging systems or into a mailbox as in email today. In this chapter we give some details about messaging in the Internet Protocol Multimedia Subsystem (IMS) context.

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