Your team lives in Microsoft 365. Your phone system doesn't.
Your organisation standardised on Microsoft 365 — email in Outlook, files in SharePoint, collaboration in Teams, all with single sign-on and one directory. Then there's the phone system: a separate universe with its own login, its own contacts and no connection to any of it.
Explore RingConnect →Separate login credentials
Another password to manage and reset.
Manual call logging
Admin work after every call — or it gets skipped.
No caller context on inbound
Answering blind, every time.
Two identity systems for IT
Extra provisioning, deprovisioning and security overhead.
Native Microsoft 365 phone integration that actually works
RingOffice for Microsoft 365 isn't a third-party plugin bridging two separate systems — it's a native integration built on Microsoft's APIs with Azure AD authentication at its core. Calling becomes part of the Microsoft 365 your team already uses.
Azure AD is the only user directory
No separate phone credentials to manage.
Every phone number in Outlook becomes clickable
One click to dial from contacts, emails or calendar.
Calls auto-log as Outlook activities
Linked to the right contact, with zero manual entry.
Inbound calls pop the Outlook record
Full context before you answer; Exchange presence routes calls automatically.
Complete Microsoft 365 integration
Every feature your team needs, natively integrated with the tools they use daily.
Outlook click-to-dial that lets you work faster
Your sales team lives in Outlook — they shouldn't be switching apps to make calls. RingOffice puts calling directly into their existing Outlook workflow, so they dial with one click, see full context before and during the call, and the call notes and summary log to the record afterward.
Get a quote →Click-to-dial from any Outlook item
Full contact context before and during every call
Call notes and summary log to the record after each call
Mobile reps get the same workflow on Outlook mobile
Azure AD single sign-on: one identity, simpler management, better security
Your IT team manages Microsoft 365 for the whole organisation — your phone system should leverage that investment, not create parallel infrastructure. With RingOffice, phone access follows the Azure AD lifecycle and your existing security policies.
New employee in Azure AD → phone access provisions automatically
Disable the Azure AD account → phone access revokes immediately
MFA, conditional access and security policies apply to the phone system
One directory, one admin surface — no parallel identity system
Built on Microsoft's own APIs
A native integration with modern authentication — professionally configured by RingOffice.
Microsoft authentication
▸Azure AD OAuth 2.0
▸Modern authentication (no basic auth)
▸Conditional-access policy support
▸Multi-factor authentication
Integration surface
▸Outlook (desktop, web, mobile)
▸Exchange calendar & presence
▸Microsoft Teams (Direct Routing)
▸Microsoft Graph APIs
Management
▸Azure AD user provisioning
▸Lifecycle-driven phone access
▸Role-based admin permissions
▸Audit logging of access
Up and running in 3–5 days
RingOffice handles the entire integration — you keep working in Microsoft 365 as normal.
Discovery & planning
Review your Microsoft 365 environment, confirm Azure AD configuration, and plan the integration and number migration.
Configuration & testing
Configure Azure AD authentication, Outlook click-to-dial and logging, screen pop and Exchange presence, and test with pilot users.
Go-live & training
Roll out to all users with a short training session and admin handover, then a monitoring period as everyone goes live.
What you need before starting
If you use Microsoft 365 for email, you already meet most of these.
What our customers say
“Can't say enough positive things about RingOffice. Our office switched from big blue to RingOffice's cloud service about a year ago and while there were issues during setup (we were setting up remotely), the helpful and friendly staff quickly diagnosed and fixed our issues. Plus, we're saving money and getting more service than with a traditional phone service.”
Ron Robichaud
Verified Google review
“I had a great experience with the RingOffice team. They helped us switch to a 3CX system smoothly. They were quick to respond, tailored the system to our needs, and were professional and friendly throughout. Highly recommended!”
Younan Younan
Verified Google review
“RingOffice has been great to work with! Their SIP trunks and 3CX hosting are rock solid, and their service people are helpful and responsive.”
Jake Cormier
Verified Google review
“Our small business has been with RingOffice for over 2 years. Their phone system has made our lives so much easier! We have a brick and mortar business and with the RingOffice set up we are able to use our phone systems without being tied to the office. Their support team is super helpful as well.”
Rhonda VanKleef
Verified Google review
“We have been with RingOffice for 2 years now. Since our change we have had exceptional service. They spend the required time with us to explain the VoIP service and answer our technical and non-technical questions. The service tracking system keeps us updated and they always follow up to ensure our issues are resolved.”
Brad McConnell
Verified Google review
“Switched from an on-site server and regular landline to VoIP phones on a cloud server and OneDrive for file share. They made the transition easy and stress free. Great company, highly recommend them.”
Bob Henley
Verified Google review
Questions buyers ask about Microsoft 365 phone integration
What teams ask when bringing calling into Microsoft 365.
Bring calling into Microsoft 365
Tell us your team size and your Microsoft 365 setup — RingOffice will configure native calling with Azure AD SSO, Outlook click-to-dial and auto-logging, and show you exactly what it costs.
GET A QUOTE NOW