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UMTS Subscriber Identity Module (USIM)

Abbreviation(s) and Synonym(s): Definition(s):

  A module similar to the SIM in GSM/GPRS networks, but with additional capabilities suited to 3G networks.
Source(s):
NIST SP 800-101 Rev. 1

  a module similar to the SIM in GSM/GPRS networks, but with additional capabilities suited to 3G networks.
Source(s):
NISTIR 7250 under UMTS Subscriber Identity Module
NISTIR 7387 under UMTS Subscriber Identity Module