组播功能介绍及使用方法

介绍

概述

组播功能允许发送方将语音信息和其他音频内容传输到已配置的组播地址。所有正在监听该组播地址的电话都可以接收传输的音频。此功能类似于广播或公共广播系统。通过组播,可以轻松有效地将广播传递给组播组中的每个成员。
运行机制:

  • 电话使用DSS按键来配置组播发送地址、端口和编解码器。

  • 组播监听地址和端口是通过网页界面或LCD菜单配置的。

  • 当电话启动组播会话时,所有监听该地址的电话都可以接收组播音频。

组播配置与使用

组播发送方配置

打开电话网页界面,点击“功能键” - “功能键设置”。将一个功能键的类型设为MCAST Paging,并以IP:端口的格式设置值。
组播发送方配置
组播发送方配置
使用说明:配置一个功能键,将其类型设为MCAST Paging,然后定义组播地址和端口。在待机模式下,按下对应的功能键即可启动组播广播。

组播监听方配置

有两种方式监听组播音频:自动监听和手动监听。
2.2.1 自动组播监听配置
打开电话网页界面,点击“电话设置” - “组播”,然后配置组播名称和组播地址等参数。

参数 说明
优先级 设置普通通话(即非组播通话)的优先级。数字越小,优先级越高。
例如,如果电话已经在一个或多个普通非组播通话中:当优先级设为禁用时,任何级别的组播通话都不会被接听且将被拒绝;
当优先级设为特定值时,只有优先级高于该值的组播通话可以被接听,其他通话将同时被保留。
启用页面优先级 决定是否启用组播页面之间的优先级比较。组播优先级是组播列表左侧显示的索引/优先级。
启用通道优先级 通道24是优先级通道。这只有在启用通道优先级后才生效。
启用紧急优先级 通道25是紧急通道。这只有在启用紧急优先级后才生效。
索引 / 优先级 数值表示组播优先级。在启用页面优先级后生效。数字越小,优先级越高。
名称 设置正在监听的组播的名称。当接听组播时,此名称将显示在屏幕上。如果未设置,屏幕将直接显示IP:端口。
主机:端口 设置要监听的组播的IP地址和端口号,以冒号分隔。IP地址范围为224.0.0.0至239.255.255.255,建议的端口范围为1024至65535。
通道 当通道值为0时,组播发送RTP数据包;当通道值为1-25时,发送广播协议数据包;当通道值无效时,恢复为默认的RTP协议。默认值为0。

自动组播监听配置
使用说明:配置组播监听地址、端口和组播优先级后,当在监听的地址上启动组播会话时,电话将自动接听并显示通话画面。

2.2.2 手动组播监听

打开电话网页界面,点击“功能键” - “功能键设置”。将一个功能键的类型设为MCAST Listening,并以IP:端口的格式设置值。
手动组播监听

使用说明

① 配置:在功能键页面上,配置一个组播监听功能键,然后保存组播地址和端口。
② 操作:在待机模式下,按下已配置的功能键。
③ 结果:如果配置的组播地址上有RTP,电话将连接并播放组播音频,显示组播画面,功能键指示灯将变为红色。如果配置的组播地址上没有RTP,按下按键后电话将播放提示音,表示操作不可用。
④ 操作:再次按下相同的功能键。
⑤ 结果:电话停止组播会话,退出组播画面,并返回待机模式。

目录
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