室内监视器和SIP可视电话视频预览指南:18x/2xx模式、P2P/SIP呼叫设置、网络配置、门电话对讲故障排除。
本文档描述室内监视器与 SIP 视频电话的视频预览功能。 视频预览功能允许被叫设备在接听通话前显示来电者的视频。广泛应用于门口机通话,让用户在接听或开门前确认访客身份。
本公司所有室内监视器及视频电话。
支持两种预览模式:
Preview 18x 模式:通过响铃期间的 18x SIP 信令中携带的 SDP 数据建立视频连接,允许在接听通话前进行视频预览。
Preview 2xx 模式:第一个 200 OK 消息仅建立视频(无语音通话)。当用户接听时发送第二个 200 OK 以建立全双工通话。

视频预览 18x 模式

视频预览 2xx 模式

确保您的设备是视频电话或室内监视器。
准备一台与视频设备同处于一个局域网(LAN)的配置用电脑。
网络连接示例(BHP-SOS16、IP电话、PC):

支持两种通话模式:点对点(P2P)与SIP 服务器通话。 配置方式依通话模式而异。我们以 i16V 和 A32i 为例。
登录设备网页界面。
前往 线路 → 基本设置。
勾选 启用预览并选择模式(默认:Preview 18x)。
点击 应用以保存设置。

登录设备网页界面。
前往 线路 → SIP → 高级设置。
勾选 启用预览并选择模式(默认:Preview 18x)。
点击 应用以保存设置。

部分 SIP 服务器上的响铃群组故障
若视频预览导致响铃群组中无视频或自动挂断,请禁用预览功能。
Beke 服务器与 18x 模式不兼容
若 Beke 服务器版本低于 18.5.28,请切换到 Preview 2xx 模式或升级服务器。
服务器上禁用了早期媒体
请联系您的服务器供应商以启用 Early Media。
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