ISO/IEC 29341-26-11:2017符合[1]。它定义了本文中称为MediaManagement服务的服务类型。 MediaManagement服务使该功能能够在电话控制点（TelCP）的控制下，在电话客户端（TC）上设置媒体会话。该服务提供以下功能: -设置媒体会话以在TC和TS之间发送和/或接收媒体流。要设置媒体会话，MediaManagement服务为TelCP提供一个接口，用于协商TC和TS之间的媒体能力（例如，编解码器类型、IP地址、端口号等）。这确保TelCP选择一组公共媒体能力，用于在TS和TC之间发送和/或接收媒体流。在建立媒体会话之后，TC开始基于TC和TS之间协商的媒体能力发送和/或接收媒体流。 -修改现有媒体会话的媒体功能的机制。例如，如果创建了用于发送和接收音频媒体流的媒体会话，则可以修改用于发送和接收视频媒体流的媒体会话。 -终止媒体会话的机制。

ISO/IEC 29341-26-11:2017 is compliant with [1]. It defines a service type referred to herein as the MediaManagement service. The MediaManagement service enables the feature to set-up a media session on a Telephony Client (TC), under the control of a Telephony Control Point (TelCP). This service provides the following functions: - Set up a media session to send and/or receive media streams between a TC and a TS. To set up a media session, The MediaManagement service provides an interface for a TelCP to negotiate the media capabilities (e.g., codec types, IP address, port number etc.) between a TC and a TS. This ensures a TelCP to select a common set of the media capabilities to be used to send and/or receive media streams between a TS and a TC. After the media session is established, the TC starts sending and/or receiving media streams based on the media chapabilities negotiated between the TC and the TS. - The mechanism to modify the media capabilities of an existing media session. For instance, if a media session is created for sending and receiving an audio media stream, it is possible to modify the media session for sending and receiving a video media stream. - The mechanism to terminate a media session.