For those who have the Dial Pad feature, yes you can. You can use your dial pad to call any phone number as you would on a regular phone. 

If you don't have the Dial Pad but would like it added to your Lumin Bright, please contact our Support Team (03) 8899 7525 or email us at support@mylumin.org

Note: Dial Pad is not available for Lumin Clear/One Touch.