With the Mitel Connect, you may have Desk phone and Softphone options. If you don’t have Softphone, your Mitel administrator needs to enable it in Mitel Connect Director.
1. With Mitel Connect Director, click on Tool icon.
2. Navigate to Users>Users
3. Double click on the user you want to enable Softphone.
4. Click TELEPHONY
5. Move down until you see Enable use of softphone.
6. Click Save to save the settings.
Please view this step by step video: