# PortSIP ONE Desktop App

The **PortSIP ONE app** is compatible only with **PortSIP PBX version 22.0 or later**.\
It does **not** support PortSIP PBX version **16.x**.

PortSIP ONE is a versatile unified communications app that allows you to manage your business communications from your **desktop computer**, **web browser**, or **mobile device**. Using a single application, you can:

* Make and receive voice calls
* Send and receive text messages
* Participate in group chats and share information with colleagues and contacts
* View customer contact history
* Configure and manage call forwarding
* Access voicemail messages
* View CRM data and AI-generated call transcriptions

All communication and collaboration features are delivered through one secure, integrated platform.

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### Why PortSIP ONE

The all-new PortSIP ONE app is designed to be **simple, secure, and flexible**, enabling you to call, message, meet, and get work done efficiently:

* **Brings people together** to collaborate and deliver exceptional work
* **Adapts to you**, with a personalized user experience
* **Gives you flexibility**, allowing you to choose how and where you work
* **Integrates seamlessly** with CRM systems and AI transcription features

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### Download and Installation

To download the latest version of **PortSIP ONE for Windows**, visit the [PortSIP website](https://www.portsip.com/portsip-one).

* The Windows desktop app is provided as an MSI installer.
* Double-click the downloaded MSI file and follow the on-screen instructions to complete the installation.

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> ❗**Note**\
> This guide applies to both **PortSIP ONE for Windows (desktop)** and **PortSIP ONE WebRTC (browser-based)**.