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Chapter 3, Processing Calls
Authentication
Processing Calls
Perform a Unique Challenge
There are two methods that can be used to perform a Unique Challenge-Response
procedure:
• Unique Challenge on the Control Channel
• Unique Challenge on the Voice Channel
Performing a Unique Challenge on the Control Channel
1. Ensure that the Test Set has Initialized Call Processing with Authentication. See
“Initialize Call Processing with Authentication through Registration” on page
72
for information on how to register the mobile station and activate Authentication.
2. Select AUTHEN on the To Screen menu. The AUTENTICATION will be displayed.
3. Select RAND_U field. Enter a new, valid RAND_U value (6-digit hexadecimal).
4. Select CALL CNTL under the To Screen menu. The CALL CONTROL screen will be
displayed.
5. Select Uniq Chal from the CC Order field. The Access annunciator lights while the
Unique Challenge order is in progress. If the mobile station responds properly on the
reverse control channel, “Unique Challenge Successful” is displayed in the upper
portion of the CALL CONTROL screen. If the order failed, then “Unique Challenge
Failed” appears on the upper portion of the CALL CONTROL screen.