如何排除和修復電話接聽後無法連接的電話

概述

本文解釋了一個常見問題:被叫方電話振鈴後接聽,但未建立音訊。被叫方進入通話狀態且通話計時器開始計時,而主叫方繼續聽到回鈴音。

適用型號

這適用於本公司所有型號的電話。

目標受眾

本文檔適用於負責排查電話相關問題的日常維護人員。

問題分析

被叫電話接聽後,會向主叫方返回200 OK訊息。電話將其SIP回應發送到原始請求的VIA標頭中所攜帶的地址。在某些部署中,PBX位於私有網路並通過NAT映射暴露於公共網路,但PBX發送的SIP訊息在VIA欄位中仍然包含私有IP地址。結果,當電話發送其回應時,訊息無法正確傳遞到遠端。

解決方案

在電話配置頁面上啟用“Strict Proxy”功能(中文顯示為“兼容特殊伺服器”)。啟用此功能後,電話將不再向VIA標頭中的地址發送SIP回應,而是直接將回應發送到SIP Contact欄位中指定的地址。
以下是在電話上啟用“Strict Proxy”的方法。本文檔以X3SG Pro為例:
登錄電話的網頁管理頁面,然後進入“線路” - “進階設定” - 勾選“Strict Proxy”,並點擊頁面底部的提交,如下圖所示。
電話Strict Proxy配置工作流程圖

目錄
客服 電話
We use cookie to improve your online experience. By continuing to browse this website, you agree to our use of cookie.

Cookies

This Cookie Policy explains how we use cookies and similar technologies when you access or use our website and related services. Please read this Policy together with our Terms and Conditions and Privacy Policy so that you understand how we collect, use, and protect information.

By continuing to access or use our Services, you acknowledge that cookies and similar technologies may be used as described in this Policy, subject to applicable law and your available choices.

Updates to This Cookie Policy

We may revise this Cookie Policy from time to time to reflect changes in legal requirements, technology, or our business practices. When we make updates, the revised version will be posted on this page and will become effective from the date of publication unless otherwise required by law.

Where required, we will provide additional notice or request your consent before applying material changes that affect your rights or choices.

What Are Cookies?

Cookies are small text files placed on your device when you visit a website or interact with certain online content. They help websites recognize your browser or device, remember your preferences, support essential functionality, and improve the overall user experience.

In this Cookie Policy, the term “cookies” also includes similar technologies such as pixels, tags, web beacons, and other tracking tools that perform comparable functions.

Why We Use Cookies

We use cookies to help our website function properly, remember user preferences, enhance website performance, understand how visitors interact with our pages, and support security, analytics, and marketing activities where permitted by law.

We use cookies to keep our website functional, secure, efficient, and more relevant to your browsing experience.

Categories of Cookies We Use

Strictly Necessary Cookies

These cookies are essential for the operation of the website and cannot be disabled in our systems where they are required to provide the service you request. They are typically set in response to actions such as setting privacy preferences, signing in, or submitting forms.

Without these cookies, certain parts of the website may not function correctly.

Functional Cookies

Functional cookies enable enhanced features and personalization, such as remembering your preferences, language settings, or previously selected options. These cookies may be set by us or by third-party providers whose services are integrated into our website.

If you disable these cookies, some services or features may not work as intended.

Performance and Analytics Cookies

These cookies help us understand how visitors use our website by collecting information such as traffic sources, page visits, navigation behavior, and general interaction patterns. In many cases, this information is aggregated and does not directly identify individual users.

We use this information to improve website performance, usability, and content relevance.

Targeting and Advertising Cookies

These cookies may be placed by our advertising or marketing partners to help deliver more relevant ads and measure the effectiveness of campaigns. They may use information about your browsing activity across different websites and services to build a profile of your interests.

These cookies generally do not store directly identifying personal information, but they may identify your browser or device.

First-Party and Third-Party Cookies

Some cookies are set directly by our website and are referred to as first-party cookies. Other cookies are set by third-party services, such as analytics providers, embedded content providers, or advertising partners, and are referred to as third-party cookies.

Third-party providers may use their own cookies in accordance with their own privacy and cookie policies.

Information Collected Through Cookies

Depending on the type of cookie used, the information collected may include browser type, device type, IP address, referring website, pages viewed, time spent on pages, clickstream behavior, and general usage patterns.

This information helps us maintain the website, improve performance, enhance security, and provide a better user experience.

Your Cookie Choices

You can control or disable cookies through your browser settings and, where available, through our cookie consent or preference management tools. Depending on your location, you may also have the right to accept or reject certain categories of cookies, especially those used for analytics, personalization, or advertising purposes.

Please note that blocking or deleting certain cookies may affect the availability, functionality, or performance of some parts of the website.

Restricting cookies may limit certain features and reduce the quality of your experience on the website.

Cookies in Mobile Applications

Where our mobile applications use cookie-like technologies, they are generally limited to those required for core functionality, security, and service delivery. Disabling these essential technologies may affect the normal operation of the application.

We do not use essential mobile application cookies to store unnecessary personal information.

How to Manage Cookies

Most web browsers allow you to manage cookies through browser settings. You can usually choose to block, delete, or receive alerts before cookies are stored. Because browser controls vary, please refer to your browser provider’s support documentation for details on how to manage cookie settings.

Contact Us

If you have any questions about this Cookie Policy or our use of cookies and similar technologies, please contact us at support@becke.cc .