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什么是 VoIP 及其工作原理？现代企业指南

8 阅读分钟数

发布日期 2024年7月16日

在此博客中

01 什么是 VoIP？ - Jumplink to 什么是 VoIP？
02 VoIP 的工作原理 - Jumplink to VoIP 的工作原理
03 Pros and Cons of VoIP - Jumplink to Pros and Cons of VoIP
04 VoIP 的缺点 - Jumplink to VoIP 的缺点
05 VoIP 电话系统的主要功能 - Jumplink to VoIP 电话系统的主要功能
06 VoIP 与传统电话的比较 - Jumplink to VoIP 与传统电话的比较
07 切换至 VoIP - Jumplink to 切换至 VoIP
08 VoIP 常见问题解答 - Jumplink to VoIP 常见问题解答

Zoom

What does VoIP stand for?

VoIP is short for Voice over Internet Protocol. You might hear it called Voice over IP, but both terms mean the same thing — calls made over the internet instead of phone lines.

The shift away from old-school phone lines has opened the door to faster, smarter ways to stay in touch. Voice over Internet Protocol (VoIP) routes calls over the internet, giving you clearer audio, flexible setup options, and features that traditional systems struggle to match.

Adoption continues to accelerate — the latest VoIP statistics reveal that by 2034, the U.S. VoIP market is expected to reach nearly $152 billion, with the global market projected to hit $415.2 billion.

In this article, you’ll get a quick, practical look at what VoIP is, how it works, and the advantages and tradeoffs to keep in mind. We'll also cover the features that help teams communicate more efficiently.

VoIP is a technology that lets you make phone calls using the internet instead of traditional phone lines.

Unlike regular phones, which rely on physical wires, VoIP converts your voice into digital data and sends it over the internet to the person you’re calling. It works similarly to sending an email but transmits your voice instead of text.

在 VoIP 设置中，组织通常管理和维护自己的 VoIP 系统（例如 Zoom Phone），其中包括必要的硬件、软件和基础设施。这种方法既能降低成本，又能确保团队的沟通模式更为灵活。

显示 VoIP 通话工作原理的插图

The voice calls you make over Wi-Fi or mobile data are a simple example of VoIP in action. While many apps use this approach for personal communication, the same concept extends for professional use through an IP phone system.

Solutions like Zoom Phone use VoIP technology to provide reliable calling, business numbers, call routing, and other features that help your business manage call workflows more efficiently.

Here’s how VoIP works behind the scenes:

Digitization of voice signals:The VoIP system converts analog speech signals into digital data. This conversion process makes it possible for the voice data to be transmitted over the internet in a format that computers and other digital devices can process.
Packetization of data:After your voice is digitized, it’s broken down into smaller chunks called packets. Each packet contains your voice data and information about its source and destination. This packaging helps your voice data travel efficiently across the internet.
通过互联网传输：现在，您的语音数据已打包成数据包，可以通过互联网传输了。这些数据包会经过各种网络设备（例如路由器和交换机），由这些设备将其引导至目的地。
Reassembly of packets: After the packets arrive at their destination, they’re reassembled in the correct order. The system then reconstructs the original voice signal. Despite being transmitted in smaller, discrete packets, the recipient hears a seamless and clear audio transmission, just like in a traditional phone call.

VoIP can transform your business communication by replacing fixed phone lines with an internet-based system that’s easier to scale, manage, and adapt. This is especially useful for teams that want a flexible setup or use a Bring Your Own Carrier (BYOC) approach, since everything runs on a cloud-based foundation.

There are also a few tradeoffs to consider, particularly surrounding connection quality. Here’s a closer look at both sides:

Pros

Cons

Cost efficiency: Lower calling costs, especially for long-distance and international calls.
Flexible and scalable: Easy to add users, adjust features, or use BYOC as your needs shift.
Feature-rich: Call routing, voicemail transcription, analytics, video options, and more.
Portable and accessible: Make and receive calls from almost anywhere with internet access.
Integrations: Works with workplace tools to streamline communication and workflows.
HD audio: Clear, natural-sounding calls.
Lower hardware footprint: Fewer on-site devices, which can reduce energy use.

Internet dependence: Call quality drops when the connection is slow, unstable, or showing jitter.
Quality issues with poor connectivity: Low bandwidth or congestion can cause lag or dropped calls.
Emergency calling limitations: Can be affected by power or network outages.
Compatibility gaps: Older hardware or specialized systems might not integrate smoothly.
Regulatory requirements: Rules vary by region and may require additional configuration.

If your team wants modern calling features, simpler management, and room to grow, VoIP offers a strong foundation. Teams see the strongest results when VoIP is paired with a stable internet connection and a provider that fits their workflow.

Pros and cons of VoIP calling

虽然 VoIP 有很多优势，但它也有一些缺点和局限性。让我们来探讨一下您可能会遇到的一些挑战：

对互联网连接的依赖：VoIP 依赖于稳定的互联网连接。如果您的网络连接中断或出现抖动，可能会影响通话的质量和可靠性。
互联网连接不良导致的质量问题：低带宽或网络拥塞会导致掉线、延迟和通话质量不佳，尤其是在高峰使用时段。
紧急呼叫功能有限：与传统电话系统不同，VoIP 可能无法为紧急呼叫提供同等级别的可靠性。停电或网络中断等因素可能会影响您拨打紧急电话的能力。
兼容性问题：VoIP 可能无法兼容某些设备或服务，尤其是较旧的硬件或专有系统。这可能会在将 VoIP 与现有基础设施集成或与外部方进行通信时带来挑战。
监管考虑： VoIP 需要遵守因地区而异的独特监管要求和合规标准。

VoIP 通话的优点和缺点

正在寻找能满足您所有通信需求的 VoIP 电话系统？以下一些功能可以使您的业务通信更加轻松：

统一通信

想象一下，将全部沟通工具整合至同一平台。统一通信可打通会议、电话与 Zoom Chat，实现无缝联动，相当于为团队协作配备功能完备的指挥中心。

自动接线员

告别未接来电，让虚拟接线员以专业的方式接待呼叫者，并将他们准确转接至相应人员或部门。它如同一位能够全天候管理来电的得力助手，让每一位客户都能获取所需的服务。

桌面和移动兼容性

桌面端与移动端均可适配，您外出途中也能保持沟通畅通。无论您身处工位还是在外出途中，均可通过任意兼容设备接入 VoIP 电话系统，避免错过重要来电。

加密和安全

依托加密与完善的安全防护手段，保护您的敏感沟通内容。它就像一个安全的通话保管库，保障您的对话私密不泄露。

通话和音频质量

通话音质清晰通透，对话体验如同面对面交谈。高清音频可以保障清晰顺畅的沟通，让每一次通话都轻松高效。

借助 Zoom Phone 配备的全套通话功能，您可以享受灵活的移动云电话系统所带来的优势，无需做出任何取舍。您甚至可以通过无缝集成简化工作流程，使用通话摘要和语音信箱任务等 AI 驱动的工具提高工作效率，并体验高清语音质量带来的清晰通话体验。

此外，借助通话录音、语音邮件转录和移动应用访问等功能，管理业务通信将会变得前所未有地简单。

VoIP and traditional landlines both handle business calling, but they work in very different ways. VoIP runs over the internet, making it easier to scale and manage, and is typically packed with features that help teams in today’s workplace communicate more efficiently.

Landlines rely on physical phone lines, which limit flexibility and make it harder to support modern workflows. Additional differences include:

Category	VoIP	Landlines
Startup cost	Usually lower, especially for teams already using cloud tools App download is free; optional adapter cost: $20-$50	Can be higher due to hardware ($50-$100) and on-site phone installation ($40-$100)
Monthly fees	Often more predictable and budget-friendly Per user estimate: $15-$40 + taxes/fees	Can increase with long-distance and maintenance charges Per line estimate: $20-$60 + taxes/fees
Call quality	High quality with a stable connection	Consistent, backed by physical infrastructure
International calls	More affordable — lower per-minute rates, often in cents	Higher rates — $1+
Features	Rich capabilities, including call routing, voicemail transcription, and video options	Limited features
Unified communications	Can support meetings, phone, and chat in one place	Not designed for integrated communication
Security	Enterprise-grade security and protection are normally built in	Dependent on carrier systems
Other considerations	Easily scalable and adaptable to changing needs	Less flexible and harder to expand

All in all, VoIP stands out for businesses that want a flexible IP phone system with modern workplace features. Landlines still offer steady reliability, but they lack the flexibility, speed, and range of capabilities that VoIP platforms offer for everyday communication.

在设计灵活的工作模式时，增强团队互联、消除因物理距离造成的隔阂至关重要。这便需要借助合适的通信软件。事实上，美国正在逐步淘汰传统有线固定电话，因此目前改用网络电话（VoIP）正是一个明智的选择。

Zoom Phone 作为我们基于云的网络电话服务，通过统一平台将电话、聊天、会议等功能整合在一起，并在桌面端和移动端提供一致体验，从而优化工作效率。此外，借助 AI 功能（如通话后摘要、从语音邮件中提取待办、语音邮件优先级排序），可进一步简化工作流程、优先处理重要任务，并提升沟通管理效率。

Zoom Phone 还可与 Zoom Workplace 中的其他工具无缝集成，该平台是一个以 AI 为先的协作平台。欢迎立即联系我们，了解 Zoom Phone 如何增强贵组织的连接能力与协作效率。

对 VoIP 仍有疑问？我们来帮您解答！让我们来深入探讨一些常见的疑问。