The Global DMR Contacts is just that, a database of every DMR ID and the information of the person that applied for it.

In 2010 all the big DMR companies got together and decided to standardize/share their contacts as you would have someone on Brandmeister complaining that someone on DMR+ hijacked their DMR ID.

You can run your radio without the global contacts but it is really nice to have a radio that can hold them all so when you are talking to someone you can see their callsign, name, location right there on your screen. (if your radio has a screen.)

• Full Contacts list for Anytone D578, D868, D878, & BTech DMR-6X2 Free & Already formatted for the listed radios.
• Amateur Radio.Digital's "Digital Contacts Wizard" one free download per day unless you pay.
• Radio ID database dump "user.csv' You may have to convert it to your radio.