Microsoft Teams vs OnSIP
Microsoft Teams
microsoft.comOnSIP
onsip.comSide by side
| Figure | Microsoft Teams | OnSIP |
|---|---|---|
| Price from | $0.33/mo | $18.95/mo |
| Free plan | Yes | Yes |
| Free trial | — | — |
| Open source | — | — |
| Web | Yes | Yes |
| Windows | Yes | Yes |
| macOS | Yes | Yes |
| Linux | Yes | — |
| iOS | Yes | Yes |
| Android | Yes | Yes |
| Plans published | 17 | 4 |
| Spec score · Business Phone Systems | 9.5 (#1) | 9.2 (#8) |
| Spec score · Cloud PBX Software | 9.1 (#3) | 8.9 (#4) |
| Founded | 1975 | 2004 |
| Free plan | Yes | Yes |
| Headquarters | Redmond, Washington, United States | Sunnyvale, California, United States |
| Integrations | Microsoft 365,SharePoint,OneDrive,Outlook,Exchange,Planner,Forms,Power BI,OneNote,Power Apps,Power Automate,LinkedIn | Available integrations include HubSpot, Odoo, Zendesk, and an Open API. |
| Supported platforms | Teams is available on desktop, web, mobile, Windows, and macOS. | Apps are available for Windows, Mac, web, iPhone, and Android. |
Plans
Microsoft Teams
- Microsoft Teams FreeFree
- Microsoft Teams Essentials$4 a year
- Microsoft 365 Business Basic$7 a year
- Microsoft 365 Business Standard with Copilot$23.50 a year
- Microsoft Teams Phone StandardPriced on request
- Microsoft Teams Phone StandardPrice not published
- Teams Phone with pay-as-you-go callingPrice not published
- Teams Phone with pay-as-you-go callingPriced on request
- Teams Phone with Calling PlanPrice not published
- Teams Phone with Calling PlanPriced on request
OnSIP
- Free PlanFree
- Unlimited$18.95 a month
- Basic$49.95 a month
- Pay-as-you-go$49.95 a month
In their own words
Microsoft Teams
Microsoft Teams brings chat, channels, calls, meetings, and screen sharing together, with guest access and unlimited message history. People can join meetings as guests without a Teams account, and free users can sign in with an email address or phone number without a subscription. Free group meetings and calls last up to 60 minutes; one-to-one calls have no time limit. The free plan lists 100 participants and 5 GB of cloud storage. Teams runs on Android, iOS, Linux, macOS, Windows, and the web. Its listed integrations include Microsoft 365, SharePoint, OneDrive, Outlook, Exchange, Planner, Forms, Power BI, OneNote, Power Apps, Power Automate, and LinkedIn; Teams also has over 250 integrated business apps. Business plans support up to 300 users or people, include encryption for meetings, chats, calls, and files, and can include recordings and transcripts. Business plans list 1 TB per user for Business Basic and 10 GB per user for Teams Essentials. Essentials is $4 a year, billed at $4.00 per user/month, paid yearly; Business Basic is $7 a year, billed at $7.00 per user/month, paid yearly.
OnSIP
OnSIP is a business phone system with multiple business numbers, an auto attendant, custom call routing, and voicemail transcription. It provides desktop and mobile apps as well as a browser softphone, available in Chrome, Firefox, and Opera. Apps are listed for Windows, Mac, iPhone, and Android. The free plan supports up to 100 users and unlimited extensions, and includes Zendesk, HubSpot, and Odoo integrations. Free SIP accounts cannot dial regular phone numbers; paid plans offer a SIP-to-PSTN gateway. Paid plans start at $18.95/user/mo, and a 30-day trial is listed. Month-to-month contracts are available, with payment based on users and features. A SIP address can have active registrations on up to 10 devices. Softphone apps provide end-to-end encryption, and encryption is also available for desk phones. When both parties use the OnSIP app, professional call-link media is encrypted using DTLS SRTP. The Admin Portal supports setup, real-time feature edits, payment and contact management, and invoices.