如何在廣播應用程序中使用呼叫和尋呼優先級?

簡介

總覽

本指南說明 BK-DAB-PA3 廣播閘道器,在以 SIP 伺服器為基礎的廣播應用中,通話與廣播優先權功能的操作方式。預設狀態下,裝置播放廣播音訊時,來電無法中斷播放;可透過通話與廣播優先權設定,讓即時通話強制切入執行中的廣播。以下章節詳述功能設定與使用步驟。

適用機型

BK-DAB-PA3

網路連接圖

將電腦、BK-DAB-PA3 與 SIP 伺服器連接至同一台交換器,確保所有設備可彼此進行網路通訊,連接範例如下圖所示。

BK-DAB-PA3 與 SIP 伺服器 網路連接圖

廣播應用之通話與廣播優先權操作

優先權功能總覽

通話與廣播優先權,決定裝置優先接聽即時通話、或是持續優先播放廣播串流。多數公共廣播場景,需在廣播播放中插入緊急對講通話,調整優先權參數即可實現此機制。

1. 取得 BK-DAB-PA3 裝置 IP 位址後,登入裝置網頁介面,前往 對講設定 —> 群播,操作路徑如下圖:

開啟 BK-DAB-PA3 群播設定頁面

2. 在 群播 頁面中,可找到 優先權對講優先權 設定選項,功能說明如下:

優先權:定義一般通話的優先等級,級別範圍 1 至 10,數字越小,優先權越高。

對講優先權:定義廣播/尋呼音訊的優先等級,級別同樣為 1 至 10,數字越小,優先權越高。

優先權實務 — 廣播進行中插入通話

多數安裝環境預設模式下,即時通話無法中斷正在執行的廣播。調整通話與廣播優先權設定,即可修正此問題。下列步驟引導設定裝置,讓通話可強制切入廣播。

1. 登入 BK-DAB-PA3 網頁管理介面,進入 對講設定 —> 群播。將【優先權】欄位數值,設定為低於【對講優先權】;因數值越小優先權越高,即可讓即時通話優先於廣播音訊,設定範例如下:

設定 BK-DAB-PA3 通話優先權高於廣播優先權

2. 調整優先權數值後,點選送出儲存組態。完成設定後,外來通話即可中斷廣播串流。

3. 以雲翼 SIP 伺服器為測試範例:

使用帳號 719 將 BK-DAB-PA3 註冊至雲翼 SIP 伺服器,接著於伺服器開啟廣播任務,使 PA3 撥放 SIP 廣播內容,如下圖:

透過雲翼 SIP 伺服器測試廣播撥放

4. 於此狀態下,使用其他裝置撥打 BK-DAB-PA3,設備將自動接聽並暫停廣播;通話結束後,廣播會自動繼續播放。

即時通話中斷 PA3 廣播音訊

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