電話とPBXの間のSIP回線ステータスの不一致を修正する方法は?

はじめに

概要

一部の環境では、電話機のSIP回線は登録済みと表示されているにもかかわらず、PBX側では内線がオフラインと判定される現象が発生します。本問題はルーターまたはNATの動作に起因する場合が多いです。ステータス同期を改善するため、電話機のキープアライブ種別をSIP OPTIONSに変更し、キープアライブ間隔を15秒に設定してください。

対応機種

対応製品:全ての電話機モデル
対応ファームウェア:対応機種の全ファームウェアバージョン

前提条件

① スイッチに接続され、IPアドレスを自動取得可能なBX4U電話機2台
② 同一スイッチに接続され、電話機とのネットワーク疎通が確認済みの設定用PC

電話機とPCの接続図

電話機とPCの接続図

解決方法

登録間隔の短縮

電話機のWeb管理画面にログインし、回線 - SIPへ移動します。登録有効時間を120秒または300秒に変更し、保存をクリックします。

登録有効時間の変更

キープアライブ機能の有効化

1. 電話機のWeb管理画面にログインします。

2. 回線 - SIP - 詳細設定へ移動します。

3. キープアライブ種別SIP OPTIONSキープアライブ間隔15秒に設定します。

4. 画面下部の保存ボタンをクリックします。

キープアライブ設定画面

カタログ
顧客サービス 電話
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