如何在广播应用程序中使用呼叫和寻呼优先级?

简介

概述

本指南介绍 BK-DAB-PA3 广播网关在基于 SIP 服务器的寻呼应用中,通话与寻呼优先级功能的使用方法。设备默认播放广播音频时,来电无法中断当前播放。可通过通话与寻呼优先级设置,允许实时通话抢占正在运行的广播。以下章节将介绍该功能的配置与操作方式。

适用机型

BK-DAB-PA3

网络连接示意图

将电脑、BK-DAB-PA3 设备与 SIP 服务器接入同一台交换机,确保三者之间可正常网络互通。连接方式参考如下示意图。

BK-DAB-PA3 与 SIP 服务器网络连接示意图

广播应用之通话与寻呼优先级设置

优先级功能说明

通话与寻呼优先级,用于设定设备优先响应实时通话、还是持续优先播放广播码流。多数广播场景下,需要在广播播放中插入紧急通话,调整优先级参数即可实现该需求。

1. 获取 BK-DAB-PA3 设备 IP 地址,登录设备网页管理界面,进入 对讲设置 —> 组播,操作路径如下图:

进入 BK-DAB-PA3 组播设置页面

2. 在 组播 页面中,可找到 优先级对讲优先级 两个选项,功能说明如下:

优先级:设定普通通话的优先等级,等级范围 1~10,数值越小,优先级越高。

对讲优先级:设定广播/寻呼音频的优先等级,等级范围 1~10,数值越小,优先级越高。

优先级实际应用 — 广播期间插入通话

设备出厂默认配置下,实时通话无法中断正在播放的广播。通过修改通话与寻呼优先级参数,即可解决此问题。以下为通话抢占广播的配置步骤。

1. 登录 BK-DAB-PA3 网页界面,进入 对讲设置 —> 组播。将【优先级】数值设置为低于【对讲优先级】;因数值越小优先级越高,即可让实时通话优先于广播音频,设置参考如下图:

设置 BK-DAB-PA3 通话优先级高于寻呼优先级

2. 修改优先级数值后,点击提交保存配置。设置完成后,来电通话即可自动中断当前广播码流。

3. 以云翼 SIP 服务器为例测试:

使用账号 719 将 BK-DAB-PA3 注册至云翼 SIP 服务器,在服务器端开启广播任务,使设备播放 SIP 广播内容,参考下图:

通过云翼 SIP 服务器测试广播播放

4. 使用其他终端拨打 BK-DAB-PA3,设备将自动接听通话并暂停广播;通话结束后,广播内容自动恢复播放。

实时通话中断 PA3 广播音频演示

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