Switchvox - How can I change the Line Key name using DPMA

The information displayed on the line keys of the Digium Phones is defined by the Line Configuration option 'line_label'. By default or if the option is empty, the phone is going to show the extension number.

For example:
[bob101]
type=line
digit_map=[0-8]xx
line_label=BobbyJ
mailbox=bob101

Further information about DPMA configuration can be found here.