When you set up your FU account, you will receive a personal phone number and a PIN to log in to the phone at your workplace. You can find the phone number and all settings options (e.g. call forwarding and call waiting) in your my.FU portal under "Phone settings". 

For calls from your home office or if you do not have a phone at your workplace, use the Cisco Jabber softphone. Instructions for setting it up can be found here. 

Further information on all telephony services for FU employees can also be found here.