It appears as if we are randomly loosing our TMS published phonebook on two of our Cisco Codec C40s. One day they will appear fine, while the next they will be missing. This occurred without any known user intervention. The phonebook on the devices in questions contains a manual list, and two "Cisco TMS Endpoints" folders.
One theory is that the issue may be related to firmware. Our versions are as follows:
TMS Version: 13.2.2
Cisco Codec C40
Thanks for any assistance!