List of the Top Business VoIP Providers for Microsoft Teams in 2026

Zoom Phone is an AI-powered business communications platform that provides cloud-based Voice over Internet Protocol (VoIP) calling, messaging, and phone system management for organizations. The software replaces or supplements traditional business telephone infrastructure with internet-based calling accessible through desktop applications, mobile devices, and compatible desk phones. Its unified communications environment connects business calling with Zoom Meetings, Zoom Chat, SMS messaging, and online fax capabilities. Call management features include automated receptionists, interactive voice response menus, call forwarding, call transfers, shared line groups, call queues, and configurable routing policies. Administrators can assign phone numbers, configure business hours, manage devices, establish user permissions, and monitor communication activity through a centralized management portal. Zoom Phone provides voicemail transcription, call recording, searchable call histories, and reporting tools for reviewing communication performance. Its built-in AI capabilities generate post-call summaries, identify discussion highlights, extract action items, and prioritize important voicemail messages. ZoomMate provides contextual assistance during conversations and helps users prepare for calls, retrieve relevant information, and automate follow-up activities. Zoom Virtual Agent Receptionist offers optional AI-powered call answering that can respond to customer questions, schedule appointments, communicate in multiple languages, and transfer callers with conversation context. The platform also supports outbound calling workflows through Zoom Auto Dialer and integrates with Zoom Revenue Accelerator for conversation intelligence and sales coaching. Zoom Phone provides integrations with Salesforce, Microsoft, Google, and other enterprise systems, along with developer APIs, call quality dashboards, security controls, and international calling options.

3CX is a versatile, software-driven IP PBX built on open standards that delivers comprehensive Unified Communications straight out of the box. It caters to businesses of all sizes and across various sectors, offering a full suite of features that range from mobility and presence indicators to sophisticated call center functionalities, all at a significantly reduced cost. This platform is particularly well-suited for remote work environments, featuring mobile applications, video conferencing capabilities, and live chat integration for websites. Installation, management, and maintenance of the PBX are straightforward, allowing users to easily handle it themselves on their own hardware, a dedicated server, or via a cloud environment. Alternatively, users can opt for 3CX's hosting services to simplify their setup even further. With its user-friendly design and extensive feature set, 3CX empowers companies to enhance their communication strategies effectively.

Engage and collaborate on your own terms with the all-encompassing solution provided by Intermedia Unite. Whether you're working from the office, traveling, relaxing at home, or sipping coffee, the expansive communication and collaboration tools from Intermedia Unite ensure that you can maintain productivity and stay connected with both colleagues and clients effortlessly. You can securely share and work on documents from almost any location, enjoying complete file management with features like real-time backup and recovery. Automated greetings and rapid call routing that align with your operational hours guarantee that customers are swiftly directed to the right team member, ensuring efficient access to your staff. Incoming calls can be directed to specific teams designated for handling them, while also keeping you informed about your coworkers' availability statuses through instant notifications that indicate whether they are Available or Unavailable. With Intermedia Unite, maintaining connections while enhancing productivity has never been easier or more effective, making it an essential tool for any modern workplace.

Aircall transforms conventional VoIP systems and outdated telephone infrastructure by offering a contemporary business phone solution entirely based in the cloud. This ensures dependable calling through a worldwide cloud voice network, eliminating the need for desk phones or physical servers. In addition to standard VoIP capabilities, users have access to features like Business Text Messaging (SMS & MMS), mobile apps for business calls, and a Shared Inbox, which centralizes communications and fosters teamwork rather than leaving messages spread across multiple devices. Integrated AI Assistants provide instantaneous feedback and summaries of calls, while AI Agents are available around the clock to manage common inquiries. With seamless integration with over 250 customer relationship management (CRM) systems and help desks, every interaction is enriched with shared customer insights automatically. For teams seeking more than just a basic VoIP service, Aircall is the communication platform chosen by over 24,000 organizations.

Ultatel is at the leading edge of business communication solutions, equipping companies with state-of-the-art cloud VoIP technology designed to enhance efficiency and maintain seamless connections with clients at any time and from anywhere. Our plans are fully adaptable, offering unlimited HD Voice, SMS, Fax, Chat, Video, and access to more than 40 advanced features and integrations. With our transparent pricing model—no hidden costs—what you see is exactly what you pay. As a recognized leader in the Gartner Category and a G2 High Performer, Ultatel provides a unified communications platform that grows alongside your organization. Thanks to our innovative FlexScale technology, you can easily modify your communication requirements without experiencing downtime or incurring penalties. Our award-winning customer support team is available 24/7/365, achieving an impressive 94% first-contact resolution rate. With Ultatel, you can enjoy the assurance of limitless connectivity and support.

With an emphasis on providing "User-friendly Unified Communications," the Yeastar P-Series Phone System presents businesses, regardless of their scale, with a comprehensive solution that includes calling, video conferencing, messaging, and seamless integrations right from the start.

net2phone Unite offers a reliable VoIP phone solution for businesses, boasting an impressive 99.98% uptime guarantee supported by a Service Level Agreement (SLA). Leveraging over 30 years of experience in telecommunications and IDT’s robust carrier-grade infrastructure, Unite allows users to manage calls seamlessly across desk phones, desktops, browsers, or mobile devices. It features advanced capabilities such as intelligent call routing, an auto attendant, and comprehensive call analytics. Administrators can effortlessly adjust routing and manage users through a user-friendly self-service portal, eliminating the need for traditional PBX programming. Additionally, Unite supports video conferencing, SMS messaging, and team chat, along with integrations for Salesforce, HubSpot, and Zoho that automatically record every call. Recognized for its straightforward setup, it has earned the title of Easiest Setup by G2.

UniTalk provides an extensive array of services within the telecommunications sector, encompassing offerings such as IP telephony, virtual PBX systems, and call tracking solutions. Additionally, they offer features like callback buttons and interactive widgets to enhance user experience. These tools are designed to streamline communication and improve customer engagement.

KrispCall enables users to handle all their telecommunication requirements—be it personal, business, or corporate—through a single application available on Web, Android, and iOS platforms. From the convenience of your home, you can obtain international phone numbers. The platform simplifies the process of generating international numbers, including national, local, shortcode, and toll-free options, across more than 100 countries, regardless of how quickly you need them. You have the ability to efficiently oversee your call logs as well. With KrispCall's integrated phonebox, all your business calls, voicemails, and recorded conversations can be managed and monitored conveniently in one location. You can connect with your international clients using local numbers, which helps in building their trust. KrispCall provides affordable international numbers tailored for your business needs. Furthermore, our customizable widget allows for straightforward customer outreach, as clients can reach you effortlessly by clicking on the KrispCall widget embedded on their website, enhancing your overall accessibility. This seamless integration not only improves communication but also boosts your professional image.

For over two decades, our cutting-edge technology has been at the forefront of providing telecom services. We specialize in a variety of areas including Hosted IP-PBX, SIP Trunks, Call Center Software, Wholesale, and Data Services, ensuring that our offerings align with the FCC standards for STIR/SHAKEN network compliance with outstanding service, competitive rates, and top-tier products. The XCast Unified Communications system is designed to be both scalable and international, featuring unlimited, complimentary extension-to-extension connectivity across the globe, all managed effortlessly through a web-based Administrator Control Panel (ACP) that simplifies the oversight of your features. We are excited to present our promotional pricing options, which include the Hosted PBX Basic package at just $9.95 per month and the Sip Trunking Basic plan at only $4.95 per month, making it easier than ever to enhance your communication capabilities.

Thirdlane is a comprehensive multi-tenant communication platform that combines VoIP calling, unified messaging, video conferencing into powerful solution. Designed for both enterprises, MSPs, telecom providers and resellers, it offers unmatched flexibility, cost-effectiveness, and scalability. Highlights: - PBX with advanced call routing, voicemail, and conferencing. - IVR, call queues, recording, and analytics. - CRM integrations with Click-to-Call and caller ID screen pops. - Thirdlane Connect desktop, web, and mobile apps for collaboration. - Flexible choice: cloud-hosted or on-premises. - White-label Who it’s for: - MSPs and UCaaS providers launching branded communications. - Enterprises seeking a customizable phone system with CRM integration. - Telecom providers and resellers looking for modern PBX offerings. Thirdlane delivers a complete, future-proof phone system for organizations that want to unify communications and scale without compromise.

Dialpad Connect is an advanced, AI-powered customer communications platform designed to unify voice calls, video meetings, and team messaging into a single, intuitive experience that enhances productivity and customer satisfaction. Its intelligent features include real-time call transcription, automated voicemail transcription, AI-generated conversation summaries, and actionable recommendations that keep users focused and informed during every interaction. The platform integrates seamlessly with a wide array of popular business tools such as Salesforce, Zendesk, Microsoft Teams, Google Workspace, and Hubspot, enabling organizations to streamline workflows and centralize communication data. Built on a robust dual-cloud infrastructure, Dialpad Connect delivers enterprise-grade reliability with 100% uptime SLA, comprehensive disaster recovery, and 24/7 customer support. It meets strict security and privacy standards, including GDPR, HIPAA, SOC 2, ISO certifications, and LGPD compliance, ensuring sensitive data is well protected. Dialpad’s AI capabilities extend to providing live coaching to agents during calls, facilitating better sales outreach, and offering real-time analytics to boost operational efficiency. The platform caters to businesses of all sizes, from startups to global enterprises, helping them transform their communication strategies. Dialpad Connect simplifies complex communication needs into a unified platform that supports inbound and outbound contact centers, cloud phone systems, and virtual collaboration. Its flexibility and scalability allow organizations to adapt and grow while maintaining exceptional customer experiences. Ultimately, Dialpad Connect turns everyday conversations into actionable insights that drive business growth.

One Platform for All Business Calls Simplify and enhance your business communications with Zadarma. From internal calls to global customer service, everything runs in the cloud — secure, reliable, and fully customizable to your workflow. Highlights include: - Visual PBX constructor for intuitive setup - AI call agents and speech recognition tools - Automatic call distribution (ACD) and IVR setup - eSIM for global mobile connectivity - Full API access to automate and integrate with your systems - 24/7 support and detailed documentation Perfect for companies managing international communication, remote support, or multi-channel sales teams.

Discover a dynamic cloud-based phone solution specifically designed for businesses with Webex Calling, enabling you to effortlessly make and receive calls on any device from nearly any location, simplifying the challenges of conventional phone systems. This service is crafted to foster your business's expansion by allowing calls from your business number and providing access to a wide range of powerful cloud calling functionalities. Eliminate the costs that come with physical phone equipment; instead, manage all aspects of your services, users, and security from a single intuitive platform. Webex Calling places a strong emphasis on security, ensuring your communications are protected without requiring frequent updates or maintenance. Experience the convenience of making calls with extension numbers, direct inward dialing (DID), email-style directory URIs, or by using directory-based dialing methods. With an array of features such as shared lines, hunt groups, call waiting, hold/resume options, call pickup, forwarding, do not disturb, and transfer abilities, you’ll always be prepared for important calls. This modern communication solution not only boosts productivity but also empowers teams to maintain connectivity regardless of their physical location, enhancing collaboration in today’s fast-paced work environment. Ultimately, it represents a significant advancement in how businesses approach their communication needs.

Yodel serves as an innovative receptionist for customer service departments, expertly handling inbound voice communications to pre-qualify calls. This system facilitates call management without the need to switch between different tools, ensuring a smooth experience. With a robust infrastructure built on proven technology, users can collaborate effectively on calls while benefiting from exceptional voice clarity. Within minutes, you can have your phone system operational without the hassle of transferring your existing business number. Yodel seamlessly integrates with more than 1000 software applications, allowing you to link your phone system to your workflows effortlessly. Additionally, it offers access to phone numbers in over 100 countries, ensuring you remain connected with your customers no matter their location. By partnering only with trustworthy local carriers, Yodel prioritizes outstanding call quality and reliability. Our service is designed to maintain high uptime and uphold a secure phone infrastructure. In today's competitive landscape, customer service teams are expected to deliver superior support and enhance customer satisfaction. Yodel eliminates the complexities associated with traditional phone systems, focusing instead on what truly matters: effective voice communication and customer engagement. Moreover, with its user-friendly interface and reliable features, Yodel empowers businesses to enhance their communication strategies and foster better relationships with their clientele.

Teliqon delivers a unified communication environment for businesses that need reliable voice and messaging capabilities without complex infrastructure. The platform combines cloud telephony, messaging tools, and automation features into a single system designed to support modern business operations. Companies can connect local or international virtual numbers, manage inbound and outbound communication, and run automated dialing campaigns to reach customers more efficiently. SMS functionality allows businesses to send notifications, alerts, and promotional messages globally with high delivery performance. The system integrates with CRM platforms and internal tools, enabling teams to synchronize customer data, monitor interactions, and streamline communication workflows. This helps organizations improve response times, maintain better customer relationships, and increase operational transparency. Teliqon is built to scale with business growth, supporting distributed teams, remote work environments, and multi-country operations. Its flexible architecture and usage-based model make it suitable for startups, growing companies, and enterprises looking to optimize communication processes and expand their global reach.

NUACOM operates as a Telecom and Software-as-a-Service provider, offering adaptable and scalable calling solutions that empower businesses to enhance customer service and excel in sales engagements. Effective sales and customer service are vital for any organization, making a robust communication platform essential for achieving business success. Our calling platform prioritizes user experience, call analytics, and automation, allowing you to concentrate on what truly matters: increasing your sales and ensuring customer satisfaction. By leveraging our solutions, organizations can foster stronger relationships with their clients and streamline their communication strategies.

Yeastar Cloud PBX is an advanced telephone solution tailored for small enterprises, providing a future-proof option for communication needs. With Linkus UC Clients, users can effortlessly engage in remote work and improve call handling across various devices. The hosted deployment eliminates the need for initial hardware investments, significantly reducing management overhead. Yeastar's hosted system is user-friendly and offers a wide range of compatibility features, ensuring that any transitions or upgrades occur smoothly. It's important to remember that the Yeastar P-Series PBX System has replaced the old Yeastar Cloud PBX, bringing along enhanced call center functionalities and integrated communication capabilities for users. This evolution makes it an even more attractive choice for businesses looking to streamline their communication processes.

We drive human progress through teamwork, connectivity, and advanced communication technologies. Every aspect of business revolves around people, and when tailored technology enhances human creativity, both individuals and organizations flourish. Teams that excel accomplish greater feats, reach higher goals, and experience increased success. Organizations become more agile, efficient, and adaptable to change. Our team is dedicated to simplifying technology and keeping it affordable. Our passion for our work is evident in how we collaborate with you, starting from our initial discussion and continuing with ongoing support after installation. Serving over 30,000 customer locations across more than 65 countries, we provide clear, secure, and scalable global managed services along with sophisticated collaboration and communication solutions. Let's work together to enhance your human potential and foster innovation. By combining our expertise with your vision, we can create remarkable outcomes.

Stop settling for minimal commissions and collaborate with RingLogix to achieve profit margins of up to 70% for your managed service provider (MSP) enterprise. You can easily create personalized quotes and allow clients to register online with just a few clicks, simplifying the onboarding procedure. Customers can be instantly activated, and services can be provisioned directly from any quote, with the option to add extra services as required. Take advantage of the integrated billing system to oversee subscriptions, manage taxes, issue invoices, and conduct payments effortlessly. Immediate access to call logs is available, offering insights that include SIP ladders, caps, RTP statistics, and much more, significantly improving your operational understanding. There’s no need to invest in new hardware or replace your existing devices, as RingOS is built to integrate smoothly with all major vendors, and we are always open to collaborating with new partners. Our platform allows you to quote, activate, bill, and support your own branded services through a unified, white-labeled interface. Your brand identity and customer experience remain at the forefront, bolstered by our comprehensive platform, which serves as a true white-label solution. You will have complete authority over every aspect, from packaging and pricing to features and integrations, ensuring your services align with your specific business objectives. This degree of customization not only empowers you to enhance your business operations but also enables you to meet the distinct needs of your clientele more effectively, ultimately leading to stronger client relationships and increased satisfaction.

Viirtue's white-label VoIP and UCaaS software revolutionizes video collaboration by enhancing traditional VoIP and UCaaS services. In addition to its mobile functionalities, it provides an exceptional and efficient quote-to-cash solution. This equips you to effectively compete against larger companies while expanding your business with cutting-edge tools, outstanding customer support, and valuable resources. You can fully rebrand our comprehensive suite of white-label communication solutions, turning it into a centralized hub for all your technological needs. Request a demo to experience how our top-tier platform and quote-to-cash software simplify the management of a unified communications enterprise. Our competitive pricing model only charges for the number of active seats, ensuring fairness even when multiple users utilize various devices. Furthermore, our integrated quote-to-cash software and reseller dashboard serve as a complete solution that not only enhances your brand identity but also empowers you to attract and secure additional business opportunities effectively. With Viirtue, you're not just adopting technology; you're embracing a partnership that fosters growth and success.

Designed for both large enterprises and emerging companies, the Yay.com business phone system presents a flexible and innovative communication platform that not only cuts costs but also enhances organizational adaptability. With user-friendly softphone applications compatible with your existing devices, remote and hybrid work becomes effortless and efficient. You can collaborate and communicate from anywhere in the world, allowing you to operate in a manner that suits your needs best. Yay excels in supporting distributed teams, whether they are in the office, at home, or on the move. Take advantage of a wide array of business functionalities, including CRM integrations, IVR call menus, call queuing, and much more. Start with a free trial today and discover how Yay.com can empower your business to flourish and succeed. Additionally, with its comprehensive tools and features, you can optimize your team's performance and improve customer interactions effectively.

NXTPulse offers cutting-edge innovations that can elevate your business operations significantly. The platform is packed with a variety of features, including seamless integrations with Microsoft Teams, which enhance its functionality. With its extensive capabilities, NXTPulse empowers you to work flexibly from any location at any time. It is compatible with leading platforms such as Office 365 and numerous popular CRMs. Moreover, NXTPulse provides robust conference bridges, facilitating effective communication among all participants. You can rely on NXTPulse to manage your hosted voice solutions, freeing you from that responsibility. Regular updates and new features ensure that the platform remains current and effective. Strong SSL security safeguards the connection between your organization and the NXTPulse cloud, ensuring that your communications remain secure. In addition to its numerous productivity-boosting features designed to enhance customer service and operational efficiency, NXTPulse also has the potential to significantly reduce your telecommunications expenses. This combination of benefits makes NXTPulse an invaluable asset for any business looking to thrive in a competitive landscape. 3cx Integrations - M365, Microsoft Teams, Microsoft Dynamics, Google Workspace, Hubspot, Sales force, Connectwise, Freshdesk, Freshsales, Freshworks, Zoho, Zendesk, Pipedrive and much more Self-Managed or Fully Managed options to fit your needs All inclusive licenses and SIP Trunk included No per Minute or per number cost.

OpenVBX is a cloud-based telephony solution designed to integrate effortlessly with a user's Twilio account, facilitating both voice calls and messaging services. Teams can take advantage of a web-based dialer alongside a shared inbox to manage both incoming and outgoing communications, which includes SMS management, call logs, recordings, and the design of interactive call flows featuring menus, routing based on business hours, voicemail, and various IVR capabilities. The platform also supports functions such as call transfers, conference calls, voicemail transcription, appointment scheduling, and automated workflows for improved efficiency. Users can select from a variety of plans that offer virtual phone numbers and collaborative calling options, while higher-tier plans unlock additional sales features like click-to-call, local presence dialing, CRM integration, bulk calling, SMS marketing, and an AI-driven voice assistant. OpenVBX is particularly beneficial for a range of organizations, including real estate firms, healthcare providers, and lending institutions, thus catering to varied business requirements. The service is easily accessible via a web interface and an app available for Android, with Twilio usage charges billed separately to users. Moreover, OpenVBX's exceptional adaptability makes it an indispensable tool for enhancing communication strategies and optimizing customer interactions across multiple industries, ensuring that businesses can meet their unique operational demands effectively.

Streams.AI by PanTerra Networks is a comprehensive Unified Communications and Contact Center platform that combines every major communication channel into a single, cloud-based solution. Instead of managing multiple vendors or disconnected apps, businesses gain one secure platform that covers VoIP phone service, video conferencing, team messaging, SMS, fax, and file sharing, all enhanced by powerful AI-driven tools. With cloud PBX features like auto-attendant, call recording, voicemail-to-email, and advanced routing, Streams.AI simplifies business calling while ensuring HD-quality reliability. Teams can collaborate through secure video meetings, webinars for up to 1,000 attendees, persistent chat, advanced team rooms, and SmartBox enterprise file sync and share with built-in security and version control. Customer-facing teams benefit from robust contact center capabilities including skills-based routing, queue management, real-time dashboards, and AI features such as transcription, analytics, and agent assist, tools that increase efficiency and improve customer experiences. Streams.AI integrates seamlessly with Microsoft Teams, Outlook, Office 365, Google Workspace, Gmail, Salesforce, ServiceTitan, and more, while APIs support custom workflows. With HIPAA and SOC 2 compliance, end-to-end encryption, geo-redundant data centers, and 99.999% uptime, businesses can trust their communications are protected and always available. Deployment is fast thanks to white-glove onboarding, and support is unmatched: Streams.AI customers get live, US-based expert help 24/7, with an average response time under 30 seconds. Trusted for more than 20 years, PanTerra delivers a future-ready, scalable platform for SMBs and enterprises alike, helping organizations reduce IT complexity, lower costs, improve team productivity, and deliver exceptional customer engagement.