PortSIP ONE for Microsoft Teams
PortSIP ONE for Microsoft Teams is a SIP softphone solution designed to work seamlessly with Microsoft Teams. It allows users to make and receive SIP-based voice and video calls directly from the Teams environment.
PortSIP ONE for Microsoft Teams consists of two components:
Desktop Client Application: Installed on the user’s Windows computer, responsible for handling SIP calls.
Microsoft Teams App (Plugin): Installed inside Microsoft Teams, providing integration and call control within the Teams interface.
This guide describes how to install and use PortSIP ONE for Microsoft Teams.
Installing the PortSIP ONE for Microsoft Teams Desktop APP (Windows)
Download the PortSIP ONE for Microsoft Teams installer from the PortSIP website.
Double-click the installer package and follow the on-screen instructions to complete the installation.
SIPS Protocol Association (Required)
After installation, if the SIPS protocol association is not set to PortSIP ONE for Microsoft Teams, you must configure it manually.
Windows 11
On Windows 11, if the app detects that the default application for the sips: link is not PortSIP ONE for Microsoft Teams, it will automatically navigate you to the Set default file types or link types settings page.
When prompted, the system opens Set default file types or link types. Locate the SIPS protocol. Select PortSIP ONE for Microsoft Teams as the default application. No additional manual steps are required.
Windows 10
On Windows 10, the SIPS protocol must be associated manually using the following steps:
Open Settings > Apps > Default apps
Scroll down and click Choose default apps by protocol
Locate the SIPS protocol
Click the app icon on the right and select PortSIP ONE for Microsoft Teams as the default application
Installing the PortSIP ONE for Teams App in Microsoft Teams
Download the PortSIP ONE for Microsoft Teams app package from the PortSIP website.
Open Microsoft Teams and follow these steps:
Click Apps in the left navigation bar
Select Manage your apps
Click Upload an app , then choose one of the following options:
Upload a custom app (for personal or team use)
Submit an app to your org (requires Teams administrator permissions)
Click Upload an app > Upload a custom app
If you are an admin of the team, you can also click Upload an app > Submit an app to your org
Select the downloaded
portsip-one-for-teams-plug.zipfile from your local disk
Click Install and follow the prompts to complete the installation.

Using PortSIP ONE for Microsoft Teams
In Microsoft Teams, click the PortSIP ONE for Microsoft Teams icon to launch the application.
Sign in manually:
Enter your PortSIP PBX tenant domain and server address
Enter your username and password
Click Sign In
Or sign in using QR code:
Click the QR code icon
Scan the user QR code generated by your PortSIP PBX
After successful login, you can use PortSIP ONE for Microsoft Teams to:
Make and receive voice and video calls
Browse and manage your contacts
Dial numbers directly
Answer incoming calls
View and manage call history
Support
If you encounter any issues during installation or while using PortSIP ONE for Microsoft Teams, please contact the PortSIP Technical Support Team for assistance.
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