# Using Reach Through

To reach through to a MiVoice Business system, click the Connect to MiVB System Tool, Open Service Details in MiVB System Tool, or Open Group Details in MiVB System Tool button in one of the supported pages.

Note: Reach Through is only supported using Internet Explorer or Firefox browsers and you must have installed the browser with the Mitel Root Certificate. If you attempt to use any other type of browser to reach through from MiCollab to MiVoice Business, reach through will be blocked.

- If the MiVoice Business server is reachable, the MiVoice Business system administration tool opens in a new browser window. You do not need to sign in again to the MiVoice Business system since you have already signed into MiCollab.

- If you click another reach through link or button in USP, the MiVB system tool form opens in a new tab.

- In the case of a hosted context (for example, reaching through to a user with phone services, or to a template which contains phone services) the reach through targets the MiVoice Business which is the primary host (home element) of the user's phone services.

- In the case of a non-hosted context (for example, reaching through to a template with no phone services or to the backup form) reach through will arbitrarily select one of the MiVoice Business servers in the local administration group.