Description

DID is an external number to have incoming calls to your VoIP network reach a particular device.

Inventory

Tags are labels attached to DIDs for the purpose of identification or to give other useful information.

DID Tags can be accessed at Routing -> DIDs - Tags

To Add a new DID Tag, press NEW and fill in its Name and Comment if needed.
Color gamma can be accessed when pressing on the Color field.

After all, data is a field, press CREATE