Normally, pressing the MESSAGE key accesses your phone’s visual voice menus. However, if your system has been configured to use spoken prompts by default, you can still access the visual voice menus by using the following process.
The number of simultaneous users using voicemail can be limited by the system licenses. In order to prevent licenses being used unnecessarily, the phone will automatically exit the visual voice menus after 10 minutes if idle.
To do this during a call, press the PHONE key and then press Features.
Depending on how your system is configured, you may be required to enter your voicemail password and then press Done.