Best VoIP Providers

Voice over internet protocol (VoIP) software uses an IP network to transmit phone calls, and in some cases video calls and other messaging, seamlessly without the need to connect to an extra network. It is a modern form of PBX, short for private box exchange or private branch exchange, a broad term for private telephone networks within organizations. Businesses can utilize VoIP solutions as a reliable means of voice-based communication that leverages a pre-established internet connection. It enables calls between workers on the same network and to external clients or vendors. For organizations with a complete VoIP system, the technology can be used by employees at every level for their basic communication needs. These solutions save the company and its employees money and the hassle related to standard phone hardware and membership plans. VoIP solutions provide base level call features along with other helpful features depending on the service.

VoIP is integrated collectively into company systems, and users can often access features through a plugin on their web browsers or by connecting to the network through a personal phone using their internet connection rather than a wireless network. Depending on the VoIP provider, it may work in conjunction with specially designed hardware or be hosted in the cloud and not require additional hardware. VoIP software may integrate with other platforms such as CRM software to give users easy access to important customer information during calls or web conferencing software to add increased functionality for multiuser video meetings. Conferencing tools will occasionally allow attendees to use their VoIP connections for optimal performance and call quality. Certain VoIP solutions offer features of web conferencing and team collaboration software, such as multiway video chats and instant messaging but only within the established network.

To qualify for inclusion in the VoIP category, a product must:

  • Transmit voice over the user’s IP network to be received on a separate computer or device
  • Utilize the internet through both public and private networks
  • Allow varying numbers of calls at the same time with no interruption
  • Allow users to bypass landline connections or wireless networks on company or personal devices to tap into the unified network
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    CenturyLink© Contact Center Solutions offer cloud- and network-based services that provide flexibility, scalability, and low TCO, as well as a robust feature-functionality set that delivers an excellent customer experience. Call Routing: Intelligent Pre-Route (IPR) Reduce call transfers and costly reroutes with Intelligent Pre-Route (IPR), a CenturyLink network-hosted application that integrates with Cisco Intelligent Call Manager (ICM). IPR routes calls to the appropriate destination directly from the Toll Free Network. IPR communicates with premise-based call center platforms to determine the location, group, or individual best available to handle incoming calls. Call Routing: Interaction Routing Improve sales and services while lowering contact center costs with Interaction Routing, a network-based contact-center solution that includes inbound ACD routing, outbound dialing, web-contact transaction routing, workforce management, and detailed reporting. IVR: Hosted IVR Improve your customers' experience with Hosted IVR, a scalable, flexible platform that gives you the ability to direct calls according to customer need and agent availability. IVR: EZ Route Improve business efficiency and customer satisfaction with EZ Route, CenturyLink's network-based, self-help, IVR application that provides contact-center functionality, such as menu routing, database routing, intelligent call processing, and links to custom applications. IVR: On Demand IVR Simplify application management with On-Demand IVR, a cloud-based application that's delivered to you as a service. Use the simple GUI to develop call routing applications without the time or money required for software development. Outbound Notification: Notify Improve your customers' experience with Notify, an outbound notification service that allows you to deliver multi-media content to a variety of end-point devices. Pre-defined applications are available to meet standard business needs such as appointment reminders, while custom applications let you create more complex applications to meet unique needs.

    CenturyLink® Enterprise Voice SIP Services provide Dedicated LD and/or Toll-Free Service using a SIP connection, leveraging the CenturyLink network footprint. CenturyLink® Enterprise Voice SIP Services provide Dedicated LD and/or Toll-Free Service using a SIP connection. These services leverage our network footprint in the U.S., EMEA and LATAM to provide more than a point solution for customers solving for operational and efficiency challenges. • Enterprise Long Distance • Enterprise Managed Messaging Service • Enterprise Toll Free • International Toll-Free Service (ITFS) • International Local Inbound (ILI) • TDM/PRI and switched services"

    CenturyLink® Hosted VoIP delivers advanced call management, enables mobility, and supports hybrid SIP configurations. CenturyLink was recently recognized by Frost & Sullivan with the 2018 Growth Excellence Leadership award for VoIP and SIP services​. CenturyLink Hosted VoIP delivers advanced call management, enables mobility, and supports hybrid SIP configurations. CenturyLink was recently recognized by Frost & Sullivan with the 2018 Growth Excellence Leadership award for VoIP and SIP services​. Our next-generation business VoIP solution helps improve workforce productivity. With PBX features and functionality without the expense of an on-site PBX, Hosted VoIP helps maximize the return on communication spend, reduced total cost of ownership, and eliminate large capital investments. Hosted VoIP offers advanced calling features over the CenturyLink privately owned fiber network using the BroadSoft BroadWorks platform. That means your calls can be routed fast, you can set multiple devices to ring at the same time or in a particular order, and you can get voicemail by phone, email, or online. Add, move, or change features easily online. And take advantage of the CenturyLink Business Communicator app that lets you talk or video chat, share your desktop or files, and instant message with colleagues. • Scales easily and includes all upgrades and improvements, at no additional cost • Uses phones from the Polycom VVX Series, an enterprise-grade family of IP desktop phones designed to make voice communications effective and productive. Hosted VoIP utilizes the Cisco SPA and Adtran 900 series Analog Telephone Adapters (ATAs). • Online portals allow you to easily monitor and manage your service."

    CenturyLink Voice Complete enables you to easily connect locations using either SIP or TDM to help improve resiliency, call quality and your customers’ experience. CenturyLink® Voice Complete enables you to easily connect locations using either SIP or TDM. By providing you with resiliency, improved call quality and the freedom to select the UC&C solution of your choice, we aim to enhance your customers’ experience and increase workforce productivity. We provide you with a self-service portal environment to manage service features and your telephone numbers – granting you control without the burden of administrative headaches.

    Cisco VoIP for Small Business bundles phone, data, and video into one unified service.

    Clarity has a cloud based solution that is ideal for your business. Clarity guarantees to provide customized business solutions with exceptional customer service and support.

    Class 5 SoftSwitch is an intelligent residential VoIP solution for VoIP Service Providers. It offers full-featured IP phone services to residential clients. A scalable Class 5 SoftSwitch solution offered by Ecosmob integrates call routing, e-commerce, invoicing into one user-friendly platform.

    Clearfly mobilizes business voice and messaging applications, and provides reach and visual voicemail features via mobile deskphones.

    Click-To-Call Conversion Delivery is a synergy of mobile advertising and voice communication with your potentials

    Installed at the premises of telecom operators carriers and service providers, HERO hosted PBX software provides businesses of all sizes with secure and reliable VoIP phone services, saving them the hassle and expenses of running their own PBX phone systems in-house.

    The Cloud Sim app is available for iOS and Android devices. Download Cloud Sim to create your account and start saving on calls from your SIM number and multiple mobile identities.

    White-label softphone platform where you can create, test and deploy mobile and WebRTC endpoints in less than 30 minutes. Cloud Softphone is an application platform as a service (APaaS) that allows CSPs to create new bundles for their customers and saves them millions that would have been wasted on development costs. Our platform has been helping CSPs like BroadSoft, Cisco, Portaone, and 2600Hz to create the ideal customer experience since the launch of the first iPhone in 2007. There are many reasons why CSPs throughout the world trust Cloud Softphone and the Acrobits SDK for their mobile and desktop app needs. We have successfully deployed over 140 million endpoints since our inception, for clients in the telecommunications, hospitality, healthcare, and reseller industries. Cloud Softphones’ value-added services solve bottlenecks that you are experiencing across your entire chain. Our simplified approach to building your platform brings many benefits, including: - Saving you millions on development costs. Manually developing an app is expensive and forces your company to take on a lot of risks. Our platform has been used to deploy over 140 million endpoints for CSPs globally. We help you get your app to market in days, not months. - A 100% stress-free experience. We make it easy for you to design and build the app your company needs. Our modular approach lets you choose the features and support you need, and simplifies the update and upgrading process. - Best-in-class encryption. The award-winning Acrobits encryption library was privately developed, and our ZRTP implementation was carried out by PGP creator Phil Zimmermann. Our encryption stack is repeatedly ranked as the most secure option on the market. - Mobile and desktop-readiness. Any app created on Cloud Softphone can be deployed on mobile and desktop, providing you with additional flexibility to meet the needs of your customers. - A clear fee structure that’s easy to understand. We don’t surprise you with additional fees after the fact. Every app developed on Cloud Softphone contains a one-time purchase fee, monthly user fees, and a standard monthly fee for ongoing support. You can even add new features, and we’ll only charge you for the cost of the feature. - The ability to scale your platform. Your needs today aren’t the same as tomorrow. As your business grows, you can scale your platform with new features and expanded capabilities. - A true white-label experience. You want to build your own platform, not someone else's. Cloud Softphone is white-label-ready and fully-customizable. Add your company branding and other specific elements that your customers use to identify you. - Unlimited testing of our solutions and features on your infrastructure. It’s important that you develop the right app for your infrastructure. We’re so confident in our technology that we’ll let you test as many solutions and features across as many devices as you want using your SIP infrastructure.

    Colt provides Network, Voice, and Data Centre services to businesses of all sizes around the world.

    CommuniGate Pro provides unprecedented resiliency with open APIs to support business applications in a multi-tenancy environment ideally suited for Cloud hosting deployments or Enterprise topologies.

    Unlimited connectivity, thousands of active users around the world.

    CoreDial is a leading white label SaaS provider that empowers more than 500 channel partners to provide cloud communications to more than 20,000 businesses in the United States. CoreDial’s revolutionary SaaS platform, SwitchConnex, enables the channel to quickly and cost effectively sell, deliver, manage and invoice for reliable, private label cloud communication services, including hosted PBX solutions, VoIP, SIP trunking and unified communications. With no hardware or software to buy, CoreDial’s channel partners – MSPs, VARs and IT solution providers – deliver valuable end-user solutions while generating recurring revenue with margins well above industry averages and building value in their personal brand.

    CSIP Simple is a free SIP client for the Android OS. In its current build, the application does not support business features like blind or attended transfer. If you need these features, then I suggest purchasing and downloading Bria for Android.

    Cytracom provides enterprise-grade Hosted VoIP and unified communications to businesses nationwide.Cytracom's VoIP solutions provide cost savings, mobility, scalability and reliability with a platform built on the most advanced cloud-based VoIP technology in the world, .

    Dataflex ViNE is a flexible VoIP Multi-service Business Gateways for Multiple Applications.

    Deskforce, a cloud-based Call Center software, that equips businesses with a full ecosystem of cloud-based software that consolidates the business process. Deskforce provides Chat, Voice, Email, SMS integrated within the CRM of the SME, scoring tools and big data analysis, increases the productivity of the team, accelerates the engagement process in B2C models while increasing the retention of employees within their company.

    Dialfire instantly turns your browser into a complete outbound call center.

    Dial Gate is a web-based VoIP softswitch and billing server for the IP and PSTN networks. Once installed on a server, it functions as a VoIP softswitch by connecting calls from one phone line to another within the same or different networks. It also offers management features including real-time monitoring, pre- & post-paid billing, automatic invoice scheduling & call-plan subscriptions.

    Diallog Telecommunications provides voice, internet, and data services to small, medium and large businesses.

    High-end performance for businesses that require an efficient way to centralize data, simplify data management and rapidly scale storage.

    Dzinga provides professional communication solutions. All-in-one platform. Cloud-based. Multifunctional.

    eir SIP Voice is revolutionizing the core communications tool of business that carries both calls and data over just one connection.

    Ease of use with a modern Graphical User Interface

    eTollFree is Tier-1 World Wide VoIP Provider. Provide superior local and toll-free numbers for individuals, or call center solutions for large Fortune 500 companies

    Superior Customer Relationship Management Software, written by experts in the complexities of telecom billing... and Absolutely reliable Billing Service, with redundant equipment, power backup, data security, and staffed with efficient, responsive professionals.

    Unlike our competitors, we don't charge you extra for the features. Whether you have one phone or one hundred, you get every feature we offer.

    Firmafon helps smaller companies create good connections with customers through telephony, mobile and chat solutions.

    Firstcom UK is a B2B Service Provider specialising in Cloud Communications.

    Flowroute, the first software-centric carrier, provides communication services and technology for cloud-based products. By providing businesses with programmatic access to communications infrastructure services, Flowroute removes the complexity of introducing new communications solutions to market. The patented nationwide Flowroute HyperNetwork™ delivers leading carrier-quality calling and messaging services with unparalleled reliability, reach, and simplicity.

    FluentStream Technologies offers fully hosted Voice Over IP (VoIP) telecommunications service for business.

    FlyNumber offers VoIP and hosted PBX solutions.

    Fongo Works is a free cloud-based phone system for small business.

    Whether you want to send personalized messages to a single client or notify thousands, Fonoster gives you the tools to communicate like never before.

    FusionWorks combines the cost saving benefit of cloud-based telephony with the productivity advantages of unified communications. Businesses get the advantage of more powerful communications with the integration of voicemail, web collaboration, video, instant messaging and presence, fax and phone service.

    GAO offers systems designers and engineers a complete VoIP packaged solution, which includes modules for fax and data over IP

    Gradwell offers cloud-based telephony and VoIP solutions.

    Grandstream IP video phones offer an all-in-one communications hub and a multimedia platform solution for any user desktop.

    HODUPBX offers a flexible PBX software product, providing voice, video and multimedia using a single network

    Leading UK supplier of telecoms equipment & services. Quality products for homes, offices & businesses of all sizes

    Hosted Telecom Solutions, Inc. is a full service provider of Internet, voice, and data center solutions. We combine project specific professional services teams and high quality telecommunications and cloud products with a customer focused help desk to provide a unique technology experience for our customers.

    Vitel Global is a cloud-based business phone system provider exclusively for organizations that require professional communication features

    iCall, Inc. is a telecommunications provider of free, and low-cost, domestic and international VoIP services for both businesses and consumers.

    PHONE SYSTEM IN THE CLOUD with an experienced team of dedicated experts

    Phone system support with live video chat. Its just like having a technician in your office. Instead of trying to describe a problem that you dont really understand, eliminate the teck talk! open the app, and start live video streaming to get instant feedback and support.

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