How to Install the Desktop App for Windows

Updated June 3, 2019

OnSIP users on a Windows computer can download the desktop app as an EXE file. The following instructions are applicable for Windows 7, 8.1, and 10 operating systems.

Note: Downloading the file through Internet Explorer with older versions of Windows may result in an unusable file. Appending “.exe” to the file’s name solves the issue, but we recommend using Firefox or Chrome.


First, navigate to the desktop app download page and click on the orange Download OnSIP for Windows button.

OnSIP app login page for Windows

Depending on your Windows version and browser, you may see a popup asking you to confirm that you want to save the downloaded file. Click on Save File to start the download.

OnSIP app for Windows - Save File

Once the download is complete, open the Downloads folder on your computer and select the file. Another popup window will appear and ask you to confirm that you want to run the file. Click on Run to continue.

OnSIP app for Windows - Run File

Next, a window labeled "OnSIP Setup" will appear with the “OnSIP Software End User License Agreement” (EULA) displayed. Read through the EULA, and once finished, click on I Agree to continue.

OnSIP app for Windows - EULA

You will then be presented with Installation Options. Select the appropriate option and click on Next to continue:

  • Anyone who uses this computer: Choose this option if you want to make the desktop app available to all users that are set up on your computer, including guest accounts.
  • Only for me: Choose this option if you want to make the desktop app available only to your user / account.
OnSIP app for Windows  Installation Options

Next, choose the location on your computer where you would like the desktop app to be installed. If you wish to install it in a different folder than the one suggested, click on the Browse… button and select the intended folder. Click on Install to continue.

OnSIP app for Windows - Install Location

You will see a green bar showing the progress of the installation process. Once it has finished installing, you will be directed to the final window of the OnSIP Setup process. If you would like to open the desktop app immediately, leave the checkmark in the Run OnSIP box. Click on Finish and the app window will open to the login page.

OnSIP app for Windows - Setup Complete

Logging In for the First Time

To log into the desktop app, enter your SIP address and password into the corresponding fields and click on the blue Log In button.


If you have forgotten your password, click on the Forgot Password? link and enter your SIP address. Then, click on the Send Email button to receive an email with instructions for how to reset your password. Note that the email will be sent to the email address associated with the SIP address entered. If you don’t know your SIP address, click on the Forgot SIP Address? link and follow the steps to retrieve it.

For more information on how to use the OnSIP app once you’ve logged in, please see our main OnSIP app Knowledgebase article.

Silent Installer mode

The installer package will work as a silent install by adding /S (capital S, won't work otherwise) from the command line. This will install as the current user only. To install for all users, add /AllUsers to the command line (as administrator), like

path\to\"OnSIP Setup 2.2.2.exe" /AllUsers /S



Release Notes

Notes for each release can be found here. The posts will detail new features, improvements, bug fixes, and other relevant details upon each new version release of the app. These notes will apply to all instances of the OnSIP app (both web and desktop).


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