What a DMR ID is. A DMR ID is a unique number (usually 7 digits) tied to you and your callsign. Every DMR network uses it to know who's talking. You only need one, it's free, and the same ID works everywhere — BrandMeister, TGIF, and the rest.
How to get one:
The wait. Approval usually takes 24–72 hours. You'll get an email when it's done, and your new ID will show under “My IDs” in your account. Keep that number handy — you'll use it in the next two steps.