Cisco 7945G User Manual page 59

The number is not accurately matched in the Cisco Unified Communications Manager database;
–
for example, if your number is 510-666-9999, but it is listed as 666-9999 in the database, or
your number is 408-999-6666, but it is entered as 1-408-999-6666 in the database.
If you incorrectly enter any requested information (such as mobile phone number or PIN) three
•
times in a row, the Mobile Voice Access call disconnects, and you are locked out for a period of
time. Contact your system administrator if you need assistance.
Cisco Unified IP Phone 7965G and 7945G Phone Guide for Cisco Unified Communications Manager 7.0 51