4 Architecture considerations

32.2813GPPAnnouncement serviceCharging managementRelease 17Telecommunication managementTS

4.1 High level Announcement aspects

Each technology to which the Announcement service is applied will utilize a technology-specific special resource function to play announcement media. Each of the architectures described in this clause utilizes the common Announcement service specified in this document.

4.2 Announcement in IP Multimedia Subsystem (IMS) architecture

The MRFC/MRFP are resources of the IMS that provide support for bearer related services such as announcements. Collectively, the MRFC/MRFP is known as the Media Resource Function. The architecture of MRF is shown in figure 4.2.1.

Figure 4.2.1: Architecture of Media Resource Function in IMS

In the IMS online and converged charging architecture specified in TS 32.260 [20], both the AS and the IMS-GWF interfaces the CHF/OCS. Either the AS or the IMS-GWF may utilize the Announcement service specified in this document.