Best Telephony Software for Microsoft Teams

Zoom Phone is a cloud-based VoIP phone system designed to help businesses manage voice communications, employee collaboration, and customer calls. The platform combines business calling, SMS messaging, voicemail, video conferencing, and team chat within the Zoom Workplace environment. Users can make and receive calls through desktop applications, mobile devices, web-connected systems, and supported physical desk phones. Its call management capabilities include multi-level auto attendants, call queues, call transfers, forwarding, shared lines, and customizable business hours. Built-in AI features generate call summaries, identify action items, prioritize voicemails, and provide contextual assistance during conversations. Zoom Virtual Agent Receptionist adds conversational AI capabilities for answering business questions, booking appointments, and routing callers based on their needs. Call monitoring and reporting tools provide visibility into call volumes, usage patterns, connection quality, and employee communication activity. Zoom Phone integrates with Salesforce, Microsoft Teams, Google Workspace, and other business applications to connect calling activities with existing workflows. Its centralized administration tools support phone number management, device provisioning, user permissions, call recording policies, and communication security across distributed organizations.

3CX is an open-standards, software-based IP PBX that provides complete Unified Communications right out of the box. 3CX is suitable for all industries and sizes. It can provide everything you need, from mobility and status to advanced call center features and more, at a fraction the cost. 3CX is ideal for remote companies and includes mobile apps, video conference, and website live chat. The installation, management, and maintenance of the PBX are so simple that you can easily manage it yourself, on your own appliance, server, or on a cloud-based platform. You can also choose to have it hosted on 3CX for an easy solution.

Intermedia Unite is an all-in-one business communications and collaboration platform designed to keep employees connected and responsive across locations, devices, and teams. The solution combines cloud phone service, video meetings, team messaging, file sharing, customer engagement tools, and productivity features into one integrated platform. By consolidating multiple communication tools, Unite reduces app switching and gives employees a simpler way to call, meet, chat, share files, and engage customers from desktop or mobile devices. Its enterprise-grade calling system includes more than 100 voice features that support professional business communications and consistent customer interactions. The platform also supports enhanced Microsoft Teams experiences, helping organizations extend communication capabilities within their existing collaboration environment. AI features such as transcription, summaries, and conversation insights help users retain important information, identify follow-up actions, and improve team efficiency. Mobile and desktop apps allow employees to maintain a consistent business identity whether they are in the office, remote, or on the go. Backed by strong uptime commitments and J.D. Power-certified support, Intermedia Unite is built for reliability and ease of use. By unifying communications, collaboration, and engagement, Unite helps organizations increase productivity while improving the way teams serve customers.

The Yeastar P-Series Phone System serves as an all-in-one "PBX-Plus-More" solution, integrating voice, video, and collaboration functionalities within a single, dynamic platform. Designed to cater to the advanced requirements of contemporary enterprises, it provides exceptional versatility with deployment options that include Cloud, On-premises, or Software configurations.

Aircall is an innovative cloud-based phone system designed for businesses, providing top-tier connectivity and superior audio quality without the need for traditional hardware or outdated phone systems. Users benefit from International Numbers, mobile Business Phone Apps, and Voicemail Drop, all centralized within a collaborative workspace rather than a traditional phone setup. Recognizing that telephony should be foundational, Aircall integrates dependable calling with advanced AI functionalities, including real-time transcription, AI-driven coaching assistants, and AI Agents that handle routine calls comprehensively — ensuring that voice clarity and intelligent features work seamlessly together. With over 250 integrations for CRMs and help desks, each call comes with complete contextual information automatically. This is why more than 24,000 businesses choose Aircall for their calling solutions instead of piecing together services from multiple providers.

UniTalk offers a wide range services in the area of telecommunications business. These include IP telephony, virtual PBX and call tracking. Callback buttons and widgets are also available.

Our proprietary technology has been providing telecom services since more than 20 years. We are experts in Hosted IP-PBX and SIP Trunks, Call Center Software, Wholesale, Data Services, etc. Our exceptional service, rates, and products meet the FCC standards for STIR/SHAKEN network compliance. The XCast Unified Communications is Scalable and International with unlimited, free, planet-wide, extension-to-extension, all with a web-based Administrator Control Panel (ACP) to help you manage all your features. Promotional plans: Hosted PBX Basic - $9.95/month Sip Trunking Basic - $4.95/month

Thirdlane is built for service providers and MSPs who need a multi-tenant, white-label UCaaS platform with deep API control. It delivers voice, video, chat, and contact center features while giving providers the ability to integrate billing, CRM, and IT workflows with ease. Why providers choose Thirdlane: - True multi-tenant PBX architecture built for scaling to thousands of tenants. - White-label flexibility - deliver a branded experience to your customers. - Thirdlane Connect apps unify messaging, calling, and meetings across all devices. - Built-in Contact Center for sales and support teams. - CRM screen pops and Click-to-Call to boost productivity. - Extensive APIs for automation and third-party integrations. Business outcomes: - Launch branded UCaaS without the heavy R&D cost. - Increase recurring revenue with scalable multi-tenant architecture. - Offer enterprise-grade features at a competitive price point. Thirdlane empowers providers to own their UCaaS offerings end-to-end, increasing margins and ensuring long-term customer loyalty.

Smart VoIP Solution for Teams of Any Size Zadarma replaces traditional phone systems with a cloud-based platform that’s easy to configure and use. Whether you’re a freelancer, small business, or global enterprise — Zadarma scales with your needs. What you get: - Local, mobile, and toll-free numbers worldwide - Virtual PBX with call queues, voice menus, call recording - AI Voice Agent and AI-speech recognition and analytics - Connect multiple offices and remote employees - Affordable call rates and flexible pricing plans - Real-time call statistics and recording storage - Support for IP phones, softphones, and browsers No hardware needed — just connect your team and start calling.

Talkdesk® supports customer journeys across voice and digital channels with enterprise CCaaS and Customer Experience Automation (CXA). CCaaS provides routing, workforce engagement, real-time agent guidance, collaboration, and analytics for human teams. CXA uses agentic AI to reason and act, while multi-agent orchestration coordinates work across AI agents, people, CRM, industry-specific, and back-office systems. Teams can identify automation opportunities, build agents with natural language, test them before deployment, and refine them using performance data. Talkdesk Data Cloud unifies customer, interaction, enterprise, and knowledge data so work continues with context across handoffs. Guardrails, observability, and human oversight support governed automation. Purpose-built AI, workflows, and integrations address industry requirements. CXA can work with Talkdesk CCaaS or an existing third-party contact center.

NUACOM is a Software-as-a-Service and Telecom company that provides flexible and scalable calling solutions for businesses to deliver exceptional customer service and handle successful sales calls.. Sales and customer service are important departments for any organization and having a powerful communication platform is crucial for business success. Our calling platform is focused on the user experience, call analytics and automation, so you can focus on what matters most: close more deals and delight your customers.

Yeastar CloudPBX is a future-ready phone system that is ideal for small businesses. Linkus UC Clients will give you easy access to remote working and enhanced call efficiency on any device. Hosted deployment is free of upfront hardware costs and virtually eliminates overheads for management. Yeastar's hosted solution is easy to use and has full compatibility features. Any migration or upgrade will be seamless. * Please note that Yeastar P-Series PBX System is the new Yeastar Cloud PBX that comes with versatile call center features and unified communications features.

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.

Issabel stands out as an open-source unified communications platform that merges various IP communication services into one cohesive system, effectively overcoming the limitations of traditional PBX systems by offering features like call center functionalities, email integration, management reporting, fax capabilities, video conferencing, audio recording, and CRM integrations. Its call center module is not only robust and flexible but also user-friendly, enabling efficient automation and management of contact centers while adeptly handling both inbound and outbound call campaigns through a straightforward agent interface and call management tools. Additionally, Issabel simplifies the administration of PBX solutions for service providers, allowing them to manage multiple clients from a single instance, thus alleviating the need for individual servers for each client. To further expand its capabilities, Issabel accommodates various add-ons that are designed to integrate seamlessly with the platform, enhancing features that interact with telephony and improve customer service while automating support-related actions. This adaptability makes Issabel a highly effective choice for organizations looking to streamline their communication processes.

Streams.AI by PanTerra Networks is an all-in-one Unified Communications and Contact Center solution that brings together voice, video conferencing, team messaging, SMS, fax, and secure file sharing into a single cloud platform. Designed for businesses of all sizes, Streams.AI eliminates the complexity of juggling multiple providers by delivering everything in one seamless, AI-powered interface. With business VoIP and PBX features, companies gain HD-quality calls, auto-attendant, voicemail-to-email, and advanced routing. Video meetings and webinars support up to 1,000 participants with screen sharing and live streaming. Team collaboration tools include persistent chat, advanced team rooms, presence detection, and SmartBox file sync and share with enterprise-grade security and version control. Contact centers benefit from skills-based routing, queue management, live monitoring, and AI-driven agent assist, improving both efficiency and customer satisfaction. Streams.AI integrates with tools such as Microsoft Teams, Office 365, Google Workspace, Salesforce, and ServiceTitan, while APIs enable customization for industry-specific workflows. Built with HIPAA and SOC 2 compliance, end-to-end encryption, and redundant cloud architecture, Streams.AI ensures 99.999% uptime and secure operations. Deployment is fast with white-glove onboarding, and every plan includes 24/7 US-based expert support with live response in under 30 seconds. Trusted for over 20 years, PanTerra delivers a future-ready communications platform that scales from SMBs to global enterprises, helping organizations reduce costs, improve collaboration, and enhance customer engagement.

Voxbay is a cloud-based platform that leverages AI to enhance telephony and unified communications for businesses, regardless of their size. This all-encompassing contact center solution includes features such as multilevel IVR, predictive dialing, virtual phone numbers, call masking, conferencing capabilities, live call monitoring and transfers, call recording, as well as management for leads and tickets. In addition, it offers SMS and WhatsApp messaging functions, paired with AI-driven routing for calls. The platform effortlessly connects with CRM systems like Zoho, ensuring that all interactions are logged automatically, and it provides access to virtual numbers in over 65 countries worldwide. Users benefit from real-time dashboards that track agent performance, receive automated notifications, and can integrate social media for a more holistic communication strategy. With an impressive uptime of 99.9%, strong security measures, and the ability to scale according to business needs, Voxbay significantly enhances both inbound and outbound communications while optimizing workflows and improving customer engagement through centralized management and intelligent data analytics. This combination of features positions Voxbay as a leader in the communication technology space, making it an invaluable asset for any growing business.

Choosing the right telephone system for your business can feel daunting due to the plethora of available options. For those who have the time, please continue reading to explore various alternatives. However, if your schedule is tight, feel free to reach out to us; our experts will assist you in identifying a solution tailored to your specific needs. BDM adopts a unique perspective on telephony solutions. We consider your particular business requirements, which may include factors like company size, geographical location, remote working habits, the number of locations, and available network connectivity, to recommend the most fitting solution. Often referred to as hosted telephony, Cloud Telephony, or VoIP (Voice over Internet Protocol), this system connects directly to a data network, minimizing hardware requirements. You can choose to use a traditional desktop handset, a desktop computer equipped with a headset, a smartphone, or even a combination of these devices, providing flexibility and convenience for your communication needs. This adaptability allows businesses to create a setup that best fits their operational style and employee preferences.

3CLogic transforms customer and employee experiences with its patented and award-winning AI-powered cloud contact center solutions purpose-built to enhance today's leading CRM and Customer Service Management platforms. Globally available and leveraged by the world's leading brands, its offerings empower enterprise organizations with innovative capabilities, such as intelligent self-service, Generative AI, Voice AI, agent automation & coaching, and AI-powered sentiment analytics — all designed to lower operational costs, maximize ROI, and deliver better, faster, and more personalized interactions for IT, employee, and customer service.

If you seek top-notch voice, messaging, and additional features, it’s essential to select an API provider that operates its own nationwide network. By cutting out intermediaries, you can reduce expenses, enhance your control, and create the application that your users truly desire. While you may already have experience in this field, a reliable partner is crucial to help you achieve the growth you aspire to. Whether you opt to utilize your own carrier or develop a completely new solution, Bandwidth equips you with the necessary tools to unlock your full potential. Serving as a versatile communications platform, Bandwidth offers extensive flexibility for your needs. You require seamless integrations, robust enterprise-level APIs, and intelligent tools to effectively manage your communication system. We prioritize openness in the areas that matter most to you, providing you with options and control over your operations. Our extensive global network ensures direct connections where it counts, delivering unparalleled reliability. Ultimately, this approach fosters stronger relationships with your customers while allowing your business to scale seamlessly in any direction you choose. Additionally, Bandwidth's commitment to innovation ensures that you are always equipped with the latest advancements in communication technology.

For over two decades, Diabolocom has been transforming customer engagement with our cloud-native Contact Center as a Service (CCaaS) solution. Powered by proprietary generative AI, Diabolocom delivers advanced automation, improved reachability, and actionable insights tailored to today’s customer service and sales demands. Our AI Assistant enhances each interaction through real-time transcription, satisfaction analysis, and predictive next-best-action guidance. What makes Diabolocom unique is our combination of native AI for CX and full telecom functionality, creating a hyper-customized telephony experience. By automating repetitive processes, teams can redirect their focus to driving customer loyalty and revenue growth. Our solution integrates natively or via API with CRMs such as Salesforce, Oracle, and Microsoft Dynamics, ensuring complete visibility across every touchpoint. Leading brands like Mitsubishi Electric, Nikon, and Brinks rely on Diabolocom to deliver differentiated, AI-optimized customer experiences. With 97% faster post-call handling and a 12% reduction in churn, our platform drives efficiency and keeps teams agile.

Work together with your team and connect with clients seamlessly. Utilize any communication method across various devices, no matter your location. With a unified platform for telephony, PBX, messaging, meetings, and contact center functionalities, you can easily engage with both customers and colleagues. Equip your employees with the necessary tools to enhance their productivity. This single application facilitates customer interactions and team collaboration effortlessly. Agents can work from anywhere while still delivering exceptional service to clients. Streamline your tasks with one comprehensive app for calling, messaging, and virtual meetings, allowing for real-time collaboration without interruptions. Implement intelligent features to communicate your availability effectively to your peers. Maintain strong connections and boost productivity with ease. Enjoy a complete suite of voice communication solutions, including fixed and mobile telephony alongside PBX, all centralized in one location. Regardless of the device or platform used, the calling experience remains consistent whether it’s via cellular, PSTN, or the internet, ensuring smooth and reliable communication. The ability to connect seamlessly enhances both individual and team performance, creating a more efficient working environment.

Gamma offers voice, mobile, and connectivity solutions tailored for businesses of all sizes. Our network is exclusively business-focused, fully owned and operated by Gamma, ensuring that we can provide services with enhanced efficiency. Built from scratch, this network facilitates high levels of automation and a governance framework that guarantees exceptional platform security and service continuity. By utilizing Gamma’s award-winning UC products, companies can enhance productivity, improve agility, and foster greater collaboration. Our offerings include a range of services from messaging and video conferencing to instant conference capabilities, all designed to lower costs and simplify operations while simultaneously boosting employee engagement. As a prominent provider of Unified Communications as a Service (UCaaS) in the UK, Dutch, Spanish, and German markets, Gamma delivers communication solutions through a wide network of reliable channel partners as well as directly to customers. Our commitment to innovation and service excellence positions us as a trusted partner in navigating the evolving landscape of business communications.

Vodia is a software-based PBX that runs on Windows and Linux. It offers all the advanced features you would expect from a full-featured PBX, including call queues, auto attendants and call forwarding. Vodia is also the pioneer in Multi-Tenancy. You can host Vodia on a dedicated VM( Virtual Machine) in the cloud, premises, and maintain multiple FQDNs for each customer. Sign up for a hosted demo license code for 60 days.

Broadvoice enhances communication for small and medium-sized enterprises (SMEs) by integrating robust cloud PBX, unified communications, and collaboration tools with a virtual call center into a single, award-winning Unified Communications as a Service (UCaaS) platform that offers enterprise-level functionalities at competitive prices. This platform operates on Broadvoice’s secure and redundant network and hosting infrastructure, allowing SMEs to connect securely with their customers from any location and through any device. Additionally, Broadvoice has earned recognition in the Deloitte Technology Fast 500 and has been listed among the Inc. 500 Fastest Growing Private Companies in the United States, underscoring its rapid growth and strong market presence. This combination of innovative technology and affordability positions Broadvoice as a leader in the communications industry for SMEs.

Unify Your Communications! All your communications are in one place! You can chat, text, fax and conference as well as call, chat, text, conference, collaborate, and more. NetFortris Community unifies all communication -- voice, video and messaging, collaboration, conferencing and meetings, as well as call center -- in one platform that is easy to use. We also put it in the Cloud so your team can collaborate on any device, from anywhere, whether they are at work, home, or on the move. NetFortris Community is built to meet your business communication needs today and tomorrow. Comm-unity is easy to scale as your business grows. It always works when you need and gives your team the most recent functionality. Having all communication channels in one place will streamline teamwork and increase productivity. Comm-unity is available to your team from any internet-enabled device. You can work at home or on the move. Comm-unity grows with your business, whether you add hundreds or one user.