User

This button-press allows the radio-user to login to a specific Automatic Registration Service server or a User Authentication UNS (Unified Network Services) server with the appropriate Username, PIN / Password, and User Login Unit ID combination. Usernames and Unit ID may be selected by the radio-user from CPS-defined Data User List entries, or Usernames, PINs / Password and Unit IDs may be manually entered from the radio's keypad.