Business calling
Get the complete business calling solution, on-premises or in the cloud
Use an integrated phone solution with state-of-the-art features, whether you call from a phone, PC, or mobile device.
Introducing a free version of Microsoft Teams
A powerful hub for teamwork that brings together chat, video calling, files, and apps into a shared work space.
Products and services for business calling
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Microsoft Teams
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Phone System
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Calling Plans
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Direct Routing
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Skype for Business Server
Unify your communication systems
Microsoft gives you all the business voice features you need, integrated with Microsoft Teams. Eliminate the costs and complexity of on-premises systems, with enhanced calling inside familiar tools.


Get teamwork built-in from the start
Make phone calls in Teams and foster teamwork, using Office 365 business voice features like Phone System, Calling Plan, and Direct Routing.1
Lower the total cost of your phone systems
Get a single business voice solution with flexible deployment options in the cloud, on-premises, or hybrid. With no time-consuming installation, you’ll be making your first Teams call in minutes.

Ready to make calls in Office 365?
See more from Office 365
More ways to improve teamwork
More ways to improve teamwork
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Office applications
Office 365 has the tools you need to work anytime, anywhere, on any device. It's the same Office you've used for years, plus all the benefits of the cloud. -
Business email and calendaring
Access email, contacts, and shared calendars anywhere. With Office 365, you can work wherever you work best. -
File storage and sharing
Store, sync, and share your files so everyone has access to the latest. Get anytime, anywhere access from your favorite devices. -
Online meetings
Meet wherever you are and never miss a meeting. Send an instant message or choose online multi-party audio and HD video to work together face-to-face, virtually anywhere. -
Business voice
Use Microsoft Teams and Office 365 as a complete phone system, with calling to colleagues, Teams users, and phone numbers around the world.
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Teamwork hub
See content and chat history anytime in team chat or in private chat. Schedule small group or team meetings. Post an email in the thread to keep the team in the loop. -
Intranets and team sites
Inform and engage people across your organization with a mobile and intelligent intranet. Connect team members to shared content with team sites. -
Enterprise social networks
Empower employees to connect, share, and work better together. Improve processes and drive innovation. Tap into your company’s collective knowledge. -
Task management
Take the chaos out of teamwork and get more done. Create new plans, organize and assign tasks, share files, chat about what you’re working on, and get updates on progress. -
Content services
Create, coordinate, protect, and harvest your content to gain value from it everywhere in its lifecycle. Manage compliance, reduce risk, and capture new documents on the go. -
Business process automation
Streamline, automate, and transform processes with rich forms, workflows, and custom mobile apps.
1 Availability of Audio Conferencing and Calling plans varies by country/region. See countries and regions that are supported for more information.