Internet Phone Service: What You Need to Know

    Internet phone technology allows you to make calls over an existing broadband internet connection. Make the switch to internet phone service today and experience lower costs, richer features, better versatility, and enhanced productivity.

    Multi-Line Phone Systems for Business

    What is internet phone?

    Internet phone, also called cloud phone, is a service that allows businesses to make calls over the internet, rather than through a Private Branch Exchange (PBX) provided by a traditional telephone service. Calls can be made directly from any internet-enabled device, including computers and laptops, smartphones, IP-enabled desktop phones, and more.

    Internet phone services make use of Voice over Internet Protocol (VoIP) technology, which transmits calls securely through the internet. VoIP service providers bridge the gap between internet phone users and users on traditional phone networks. This means that you can call any number, in almost any country, through an internet phone provider.

    An internet phone system offers a host of benefits for businesses of all shapes and sizes. For one, costs are substantially lower than traditional providers. Perhaps more important, cloud phone providers offer a host of advanced features that can help firms thrive in the modern business world.

    Features of internet phone

    With internet phone, users can enjoy a wide range of advanced features, built-in to a single, intuitive platform.

    • Make and receive calls from any device
    • Make and receive calls from any location with internet access
    • Simple and fast setup
    • HD voice quality
    • Add, remove, or modify users and phone lines instantly
    • Integration with modern business tools and software
    • Advanced calling features at your fingertips
    • Video calling and conferencing
    • Flexibility to setup local, international, or toll-free phone numbers
    • Ability to rent, purchase, or lease internet phone hardware

    Who can use internet phone?

    Anyone can use internet phone services. The only real requirement is to have an internet connection, and a compatible device. Businesses will typically see the biggest benefits from switching to internet phone, but some individuals also appreciate the versatility it offers.

    Small businesses

    Mid-sized businesses

    Enterprise firms

    Multinational firms


    What is internet phone?

    Internet Phone


    Connection Type

    Voice Over Internet Protocol (VoIP). Devices are connected via ethernet, WiFi, cellular data, or direct USB connection to an office computer

    Private Branch Exchange (PBX) systems. Devices are connected via dedicated copper wiring, and routed through a traditional telephone service provider

    Voice Quality

    HD voice

    Standard voice


    All standard features found in landline phones - plus a host of advanced features:

    • Call recording
    • Video calling
    • Audio & video conferencing
    • Global calling
    • Secure HD audio
    • Integration with business software and applications
    • SMS messaging
    • Automated virtual attendants
    • Integration with UCaaS systems

    Standard features. Most plans include features such as:

    • Voicemail
    • Caller ID
    • Call waiting
    • Support for multiple phone lines

    Some higher-end plans may offer:

    • Conference calling
    • Video support
    • International calling


    Ultimate versatility. Users can access VoIP services from almost any device. Calls can easily be transferred between devices, without interruption. Users can make and receive phone calls anywhere in the world, using the same phone number

    Limited versatility. Landline providers restrict calling to users who are physically located at the office. The number of lines is limited by the volume of physical connections, and the capacity of the PBX system. International calls are possible, but often expensive.


    Infinite scalability. Internet phone systems can add an almost unlimited number of lines and devices. Additional lines can be managed without extra equipment, thanks to the use of software-based “softphones”. The only limiting factor is the strength and bandwidth of your current internet plan, which can be upgraded if necessary

    Limited scalability. Landline systems are limited by the available physical wired connections, as well as the number of devices. PBX systems can be upgraded for additional capacity, but the process can be prohibitively expensive


    Very competitive and predictable. Costs scale with the needs of the business - desired features and number of users - but are typically significantly lower than traditional landline providers

    Moderate to high-cost, and unpredictable (especially with international calling). While basic landline services can be reasonably priced, they can become exceedingly expensive with advanced features and a large number of users

    Device Compatibility

    Broad device compatibility. Access internet phone services via computers, laptops, conference phones, USB phones, smartphones, and VoIP-enabled desktop phones

    Limited device compatibility. Landline services typically only work with traditional, wired desktop phones

    Internet phone service for business

    Businesses of all sizes are turning to internet phone services to replace their legacy phone systems. In the fast-paced, increasingly mobile business world of today, only internet phone offers the features, versatility, and low costs to help firms thrive. Zoom Phone is a leader in the cloud phone industry, helping keep the business world connected today - and prepared for tomorrow.

    Multiple ways to make and receive calls

    Call from Any Location

    Internet phone is ready for the increasingly mobile business world. Make and receive calls from any location in the world, so long as you have an internet or cellular data connection.

    Call from Any Device

    Zoom Phone is enhancing productivity and collaboration in the workplace and at home. Make and receive calls from office phones, smartphones, tablets, computers, and more.

    Video Conferencing

    Internet phone is not just about voice calling. Access video calling and video conferencing to connect face-to-face, wherever you are in the world.

    Affordable way to scale your business phone needs

    Add Users On-Demand

    It’s never been easier to add, remove, or modify users. With Zoom Phone, a few clicks is all it takes to add a new phone line or user account.

    Hardware as a Service

    With Zoom Phone, you can purchase internet phone hardware as a service. Keep your firm connected with the latest hardware, all with very low upfront costs.

    Utilize Softphones

    With internet phone, firms don’t necessarily need new equipment to add a new phone line. Through the use of “softphones”, employees can make calls directly from their computers, using inexpensive headsets.

    Easy to set up and use

    Seamless Transition

    For firms transitioning from legacy telephony to an internet phone service for business, Zoom Phone makes things simple. Our onboarding team can work directly with in-house IT, to make the transition quick and easy.

    Intuitive Interface

    Zoom Phone offers an intuitive, easy to navigate interface, through the Zoom app. Whether using the service on a smartphone, desktop, or office phone, the user interface is simple yet powerful.

    Powerful Administration Features

    Only VoIP services like Zoom Phone gives managers the power to monitor call quality in real time, elevate existing calls to video conferences at the click of a mouse, and much more.

    Why Choose Zoom Phone?

    Zoom Phone is an internet phone service for business that allows firms to consolidate voice, video, conferencing, and messaging communications on a single, intuitive platform.

    Works smoothly with Zoom Meetings

    Zoom Phone is built to integrate seamlessly with Zoom Meetings and video conferences. Current calls can easily be elevated to a meeting, and new participants can be invited without interruption.

    Simple, predictable pricing options

    Zoom Phone offers competitive, predictable pricing on an innovative suite of business phone services. Firms of all sizes can save money with Zoom Phone, while enjoying more powerful features.

    Secure, reliable, enterprise-quality

    Zoom serves some of the largest companies in the world. Zoom Phone users will experience unparalleled reliability, stability, and security on our encrypted platform.

    Take it anywhere

    Zoom Phone works anywhere in the world, on virtually any device. Firms can adapt to the increasingly remote world of work with Zoom’s powerful features.

    Zoom United - Meetings, Phone, and Chat

    Zoom United

    Get Meetings, Phone and Chat together on any device.

    • Move from a chat or a phone call to a meeting with a single click
    • Enjoy industry leading usability with top-rated video and audio quality
    • Apps are available for Windows, MacOS and Linux as well as for iOS and Android OS

    Purchase Zoom Phone, Meetings and Chat together and save.

    Get Started Today

    Internet phone service FAQ

    Internet phone calls require three things: An internet connection, an internet phone service provider, and a compatible device. With a Zoom Phone plan, all you need is a computer, smartphone, tablet, or VoIP-enabled desktop office phone, and a stable internet connection.

    Once the service is set up, the process of making a call will be familiar. If using an office phone, making calls will be identical to the process on a traditional landline. What goes on behind the scenes is quite different, but from a user perspective, making internet phone calls is intuitive.

    One of the biggest features of Zoom Phone is the ability to make calls on almost any device. Calls can be made directly from office computers or smartphones. This type of call will be initiated and run through the Zoom app, which is available for all major desktop and mobile operating systems.

    A major benefit of Zoom Phone is that it is almost infinitely scalable. Low upfront costs make it easy for small firms to make the switch. Enterprise-level security and features mean even the largest companies can thrive on internet phone service.

    Zoom Phone’s easily customizable plans make it simple for rapidly growing companies to adapt. Remote-friendly tools enhance collaboration at firms with a globally diverse workforce. And a simple, per-user cost structure keeps Zoom Phone affordable for firms of any size.

    Yes. Zoom Phone supports phone number porting, meaning you can transfer over phone numbers from your existing provider. There is also the option to keep your current provider, while still utilizing Zoom Phone’s advanced features.

    Internet phone service is usually more affordable than legacy landline solutions, especially because the hardware needed is less expensive — usually just a USB device such as a headset. Monthly costs are predictable and easy to manage from a single admin panel.

    Possibly. Zoom Phone works with all major smartphones, via the Zoom app. For desktop office phones, only select models will work. Desktop phones must be VoIP-enabled - you can check online for a list of features on your current phone, or contact the manufacturer for details and see if you can get phone service through the internet on your device.

    Zoom Phone - Best Multi-line Phone for Business

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