Enable standalone features
The Standalone Features setting is designed to allow you to configure a phone for use in a conference room or other common area where anyone can use it. In other words, a phone with the Standalone Features enabled will not be assigned to a specific user.
You can enable the Standalone Features setting in either the Base Settings or the Phone settings. When you enable the Standalone Features setting in the Phone settings, you must assign the phone a DID number or an extension on the Line Keys tab. For more information, see Configure Line Keys for a standalone phone.
You enable the standalone features setting on the Base Phone tab when you want to create a single base setting for use by all phones that you place in conference rooms or common areas.
You can only enable the standalone features when you create a new base settings configuration. Once you save a base settings configuration, you cannot change the standalone features setting.
You enable the standalone features on the Phone tab when you want to configure an individual phone for use in a conference room or a common area.