如何拒绝IP电话上的匿名通话?

简介

概述

话机偶尔会接到骚扰来电或未知号码来电。为杜绝此类呼叫,可配置设备拦截匿名来电。

适用机型

适用于本品牌全系列电话机型号。

适用对象

本文档适用于需要通过内置防火墙及通话控制设置,配置话机拦截匿名来电的用户。

解决方法

方案一:配置防火墙规则

1. 登录话机网页管理界面,进入“Security” -- “Network Firewall” -- “Firewall Settings”。将“Input/Output”设置为 Input,“Deny/Allow”设置为 Allow,“Protocol Type”保持默认,在“Source Port Range”填写 0-65535,“Source Address”填写服务器IP地址,“Source Subnet Mask”填写服务器IP对应子网掩码,最后点击“Add”。在“Firewall Rule Settings”中勾选“Enable Input Rules”并保存配置。
Configure firewall rules 
2. 在同一页面新增第二条规则,拦截服务器IP以外的所有网络访问,禁止非授权设备与话机通信。配置参数如下图所示:

Block all IP addresses except the server IP from sending data to the phone
备注:完成以上两项配置后,仅 PBX服务器(172.18.1.88)可与话机建立数据通信,其他所有IP主机都会被拦截,话机仅接收交换机合法呼叫流量。

方案二:开启严格UA匹配 + 拒绝匿名来电

1. 登录话机网页管理界面,进入“Line” -- “SIP” -- “Global Settings”,勾选“Enable Strict UA Matching”。
Enable Strict UA Matching
2. 继续在网页端进入“Line” -- “Advanced Settings”,勾选“Reject Anonymous Calls”,提交保存配置。
Reject anonymous calls

目录
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