Best Telephony Software for Microsoft 365
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Compare the Top Telephony Software that integrates with Microsoft 365 as of July 2026
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This a list of Telephony software that integrates with Microsoft 365. Use the filters on the left to add additional filters for products that have integrations with Microsoft 365. View the products that work with Microsoft 365 in the table below.
What is Telephony Software for Microsoft 365?
Telephony software is a type of communication technology that enables voice and video communication over telephone systems, computers, and the internet. These platforms are designed to manage, route, and track phone calls, messages, and multimedia communications within businesses or personal environments. Features of telephony software often include VoIP (Voice over Internet Protocol) support, call routing, interactive voice response (IVR), voicemail, call recording, and integration with customer relationship management (CRM) systems. Many telephony systems also include analytics tools for tracking call volumes, durations, and customer interactions. By improving communication efficiency and providing scalable solutions, telephony software is crucial for businesses looking to streamline their communication infrastructure. Compare and read user reviews of the best Telephony software for Microsoft 365 currently available using the table below. This list is updated regularly.
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1
3CX
3CX
3CX is a software-based, open standards IP PBX that offers complete Unified Communications, out of the box. Suitable for any business size or industry 3CX can accommodate every need; from mobility and status to advanced contact center features and more, at a fraction of the cost. Ideal for companies working remotely, 3CX includes mobile apps, video conferencing and website live chat. Installation, management and maintenance of the PBX is so easy that you can effortlessly manage it yourself, whether on an appliance or server at your premise on Windows, Linux or in the cloud. Alternatively you can choose to have it hosted by 3CX for a completely hassle-free solution.Starting Price: Free for up to 10 users -
2
Intermedia Unite
Intermedia
Intermedia Unite® brings business communications, collaboration, and customer engagement into one easy-to-use platform—keeping teams connected, productive, and responsive from anywhere. It replaces fragmented tools by combining business phone service, video conferencing, team chat, and file sharing into one seamless experience, so employees can collaborate without switching apps. Unite delivers enterprise-grade calling with 100+ features, integrated customer engagement, and enhanced Microsoft Teams experiences. With mobile and desktop apps, users can call, meet, message, and engage customers from anywhere while maintaining a consistent business identity. AI-powered transcription, summaries, and insights help teams capture details and follow up efficiently. Backed by 99.999% uptime and J.D. Power-certified support, Unite ensures reliable performance—resulting in simpler communications, more productive teams, and better customer engagement. -
3
Yeastar P-Series PBX System
Yeastar
The Yeastar P-Series Phone System is a comprehensive "PBX-Plus-More" solution, unifying voice, video, and collaboration into a single, agile platform. Built to meet the sophisticated demands of modern businesses, it offers unparalleled flexibility through Cloud, On-premises, or Software deployment options. -
4
GoTo Connect
GoTo
GoTo Connect is the all-in-one cloud communications platform for businesses of any size, combining voice, video, messaging, and advanced features on a single, easy-to-manage system. Connect from any device—calls, meetings, and chats stay unified wherever you work. Simple deployment, intuitive management, and robust integrations let teams get started fast and scale effortlessly. AI-driven tools like AI Receptionist greet callers, route conversations, and automate tasks—no third-party apps needed. Benefit from 99.999% uptime, award-winning support, and built-in contact center features to grow your business and create seamless customer experiences. GoTo Connect: reliable communications, powered by modern automation and built for business success. -
5
Thirdlane
Thirdlane
Thirdlane is a scalable UCaaS platform that blends multi-tenant PBX, Contact Center, and collaboration apps into one solution. MSPs, Enterprises, and telecom providers adopt Thirdlane when they want freedom of deployment, deep integrations, and reliable control over their communications stack. Whether your team prefers cloud-hosted services or on-premises deployments, Thirdlane adapts to your strategy. IT departments appreciate the API-first design, while business leaders value the ability to cut costs and avoid lock-in. Core benefits: - Enterprise-grade PBX with calling, video meetings, voicemail, and advanced routing. - Unified Thirdlane Connect apps for chat, video meetings, and file sharing. - Built-in Contact Center - Advanced analytics to improve service and sales. - CRM integration for context-rich customer interactions. - White-label branding across all user touchpoints. - Options for geo-redundancy and high availability. -
6
Zoom Phone
Zoom Communications
The cloud phone solution, natively built for the Zoom platform. Enterprise-class features with a modern user experience to streamline voice communications. Provision and manage users, monitor call quality and usage data in the Zoom administrator portal. The globally distributed Zoom cloud platform delivers secure HD Voice with enterprise-class reliability and quality of service. Seamlessly make and receive phone calls, share content, participate in video meetings, and send chat messages from Zoom desktop and mobile apps. Easily elevate phone calls to a Zoom Meeting without requiring participants to hang up and dial-in to a separate conference bridge. Native apps for Windows, MacOS, iOS, and Android are designed for ease of use while maximizing voice and video quality of service. An ever-expanding footprint of countries to provide local phone numbers. For customers who wish to streamline global telephony carrier management, porting numbers to Zoom has never been easier.Starting Price: $14.99 per user per month -
7
Talkdesk
Talkdesk
Talkdesk is automating the full complexity of modern customer journeys with Customer Experience Automation (CXA). Fragmented, manual workflows are replaced with multi-agent orchestration that drives speed, precision, and efficiency. Powered by the Talkdesk Data Cloud, AI agents act with real-time context to resolve issues and improve over time. Talkdesk helps organizations lower costs, improve outcomes, and modernize service without a full rip-and-replace. report contentStarting Price: $85 per month -
8
VoIPstudio
VoIPstudio
VoIPstudio is a cloud-based business telephone system created for organizations that require professional communications features without the hassle and expense of owning and managing on-site PBX equipment. With thousands of systems installed worldwide, VoIPstudio is the first choice for companies when selecting a VoIP solution. Its power and simplicity make VoIPstudio perfect for any business, from startups to mid-sized call centers. With VoIPstudio, you get an all-in-one business VoIP solution with no contracts and no hidden costs, available at consumer-level pricing. All our clients get all our features from day one, including a virtual switchboard, virtual numbers, conference calling, call center, call recording, and much more. VoIPstudio also includes advanced communication tools like videoconferencing, screen sharing, or integration with lots of CRMs and other business tools. VoIPstudio is a global company that serves more than 15 million minutes of daily talk time toStarting Price: $6/month/user -
9
Spoke Phone
Spoke Network
Spoke is the leading platform for high-value, complex, and regulated conversations. Spoke guides employees to say and collect the right things so deals move forward and customers get better experiences. Spoke integrates with everything, personalizing conversations, driving productivity, and ensuring compliance. Trusted for over 250,000 conversations every day with features such as calls, SMS, WhatsApp, Team Inbox, programmable routing, Personalized IVRs, caller insights, forms, analytics, +more. The Problem Today, only a small portion of your employees are equipped or have the skills to have highly-contextual, complex, and personalized customer conversations. The Solution Spoke empowers every employee with the information and skills to hold high-quality compliant conversations that drive positive customer and business outcomes.Starting Price: $15 per month -
10
Fusion Connect
Fusion Connect
Connect your entire business with one call. Fusion Connect is your Managed Services Provider tailoring business internet solutions for your SD-WAN, business VoIP, unified communications (UCaaS), internet access, secure networking, and more. Fusion Connect's Business VoIP also features Internet-based faxing, SIP trunking, softphone, and auto attendant functions. Compatible with Windows and Mac, as well as device independent.Starting Price: $19.95/month/user -
11
FluentStream
FluentStream
Do you want a business phone service that works without costing a fortune in setup or monthly fees? Wouldn't it be nice to focus on your customers instead of spending hours on hold with your provider every time you want to make a small change? Welcome to FluentStream! We're committed to being the easiest business communication system to do business with. We offer no-contract plans with 24/7 client success for every account. Not only will we hold your hand throughout the entire onboarding process, but we'll do everything on your behalf (including the hassle of calling your internet provider). We know how complicated phone setup can be, and we're more than happy to do the heavy lifting so you don't have to. It's all part of being the easiest business to do business with.Starting Price: $20.00/month/user -
12
Teloz
Teloz
Teloz cloud contact center allows employees, customers, and other integrations to all work together on one system, and also improve your company’s productivity and efficiency. Strengthen your company by consolidating all of your critical communications into a single platform. Behold one of the most powerful cloud phone systems on the globe. With a cooperative contact center, you can provide seamless consumer and operator experiences. Discover chances with industry-leading data and include the apps your teams require. With calling features that expand and assist your business, you can provide the experience your consumers demand. Enhance the value of your voice solution with intelligent routing, workforce performance analysis, connections, and other features that enrich the interaction and satisfy your customer's Teloz cloud contact center. We know the enormous consequences your company is facing.Starting Price: $3.99 per month -
13
UniVoIP
UniVoIP
UniVoIP’s innovative solutions and software drive performance, productivity, and efficiency while embracing and overcoming today’s most demanding business communication trends. The principle product, OfficeConnect™, is an extremely robust and highly flexible solution delivering 500+ PBX, Omnichannel Contact Center and Unified Communication features via private, public or hybrid networking options in a multi-instance infrastructure environment. UniVoIP also offers UniBridge, a powerful, high-definition audio, video and web conferencing, screen-sharing solution that offers meeting logs, timestamps, summaries, no software download required, and custom branding. -
14
Telavox
Telavox
Collaborate with colleagues. Engage with customers. Any channel. Any device. Anywhere. Telephony, PBX, messaging, meetings, and contact center in one simple platform. Reach out and engage with customers and colleagues. Empower your workforce with the right tools. One app for both customer engagement and collaboration with colleagues. Agents can work remotely without compromising a great customer experience. Get work done with one simple app for calling, messaging and meetings. Avoid distractions and collaborate in real-time. Use smart features to let colleagues know when you're available, and when you're not. Stay connected, stay productive. Fixed and mobile telephony, and PBX. All your voice communication needs in one place. Any device, any platform. Regardless of where a call happens - over cellular, PSTN or the internet - the experience and features are the same. -
15
NetFortris Comm-unity
NetFortris
Unify Your Communications! Call, chat, text, fax, conference, collaborate and more - all in one platform! NetFortris Comm-unity unifies all your communication — voice, video, messaging, collaboration, conferencing, meetings and call center — on one platform that’s easy to use and simple to run. And, we put it in the cloud, so that your team can collaborate from any device, anywhere — office, home or on the go! NetFortris Comm-unity is designed to meet your business communications needs today and tomorrow. Comm-unity scales easily as your business grows, always works when you need it and gives your team the latest functionality at their fingertips. With all communications channels in one place, you can streamline teamwork and improve productivity. Your team can access Comm-unity from any internet-enabled device to work from home or on the go. Comm-unity expands as your business grows – whether you're adding hundreds of users or just one.Starting Price: $19.99/month/user -
16
Sewan
Sewan
More than ever, professionals need to be able to communicate with each other and with their customers. Whether in the office or on the move, our telephony solutions can be adapted to suit everyone’s needs. Fixed telephony, mobile telephony, trunking, contact center or even telephony in teams, business telephony is becoming ever more versatile. Sewan's solutions can be easily adapted to every need. The voice technologies used in our solutions guarantee optimum call quality and rock-solid reliability. We know that business needs can change rapidly. Adding or deleting lines, and importing contacts, it's all done in the blink of an eye. Whatever type of business telephony you choose, our solutions are designed to be as cost-effective as possible, there's nothing superfluous. Our solutions are designed with the international market in mind: all our packages can be adapted to different needs. -
17
Vocalcom
Vocalcom
AI-Powered Cloud Contact Center Solution that powers innovative, personality-based routing and manages multichannel customer interactions as a single conversation. Welcome to the Vocalcom world, where digital engagement and artificial intelligence (AI) are seamlessly integrated into the customer interaction flow alongside live agents. Manage all customer interactions as one single conversation. A new generation of cloud contact center platform that works with existing systems and supports ALL channels. Vocalcom's intuitive user experience increases productivity and allows companies weave all their customer interactions—across all channels—together into continuous conversation threads, to reduce customer effort and strengthen customer relationships with every interaction. Adaptable, AI-Powered and Amazingly Simple Keep the conversation flowing. Customer interactions across phone, chat, text message, email, social media, and any other channel, all come together in one place. -
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Momentum Telecom
Momentum
We unleash human momentum with collaboration, connectivity, and communications technology. All business is human—and when custom technology empowers human ingenuity, people and companies thrive. High performing teams do more, achieve more, and win more. Companies become agile, efficient, and resilient. Our team takes pride in making technology easy and cost effective. We love what we do—and it shows in the way we partner with you, from our first conversation to ongoing post-install support. Working with over 30,000 customer locations in 65+ countries, we deliver straightforward, secure, and scalable global managed services and advanced collaboration and communications solutions. Together let’s build your human momentum. More at gomomentum.com
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