Every content item in this list is tagged with all the required labels:

• communications
• deskphone
• hunt
• interactive
• known
• manage-participants
• microphone
• mute
• phone_number
• phones
• softphone
• text

To add a label to the list of required labels, choose '+ labelname' from Related Labels.
To remove a label from the required labels, choose '- labelname' from above.