HP 8924C Application Manual page 223

1. Register the MSUT or Set Up a Call.
If the MSUT is already registered or a call is connected, this step is not
necessary.
See
these procedures is performed using the Test Set.
Setting up a call registers the MSUT.
Registration provides the Test Set with the MSUT's ESN (Electronic Serial Number).
ESN is displayed in the MS Database field.
Authentication procedures rely on ESN to generate valid A-Keys and generate other values used to check for
possession of identical SSD between the MSUT and Test Set.
N:\mkt\MANUALS\HP8924C\APPMOD\BOOK\CHAPTERS\amauth.fb
"Setting up a Call" on page 52
Chapter 6, Authentication Tests
if you are not familiar with how either of
Updating SSD
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