Microsoft Teams
9.0#1 in business phone systemsFree planFree planAndroidiOSWebLinux
VisitMicrosoft Teams vs OPBX
What both publish
| Fact | Microsoft Teams | OPBX |
|---|---|---|
| Free plan | Yes | Yes |
| Integrations | Microsoft 365,SharePoint,OneDrive,Outlook,Exchange,Planner,Forms,Power BI,OneNote,Power Apps,Power Automate,LinkedIn | OPBX uses Cloudonix CPaaS for call handling and SIP services, and supports AI assistants configured over SIP or WebSocket. |
Microsoft Teams plans
- Microsoft Teams FreeFree
- Microsoft Teams Essentials$4
- Microsoft 365 Business Basic$7
- Microsoft 365 Business Standard with Copilot$23.50
- Microsoft Teams Phone Standard—
- Microsoft Teams Phone StandardPriced on request
OPBX plans
No prices published.
Pick Microsoft Teams if…
Teams suits individuals who want chat and calls without a subscription, as well as businesses coordinating meetings and work across Microsoft 365 apps. Its listed business plans cover organizations with up to 300 users, with an enterprise option presented for more than 300 people.
Pick OPBX if…
You want what its maker publishes above — check its page for the details.