Cisco TelePresence Administrator's Manual page 185

Field Description
Password The password used by the VCS to log in and
query the service.
The maximum plaintext length is 30 characters
(which is subsequently encrypted).
Default CPL The default CPL used by the VCS if the policy
service is unavailable.
See About policy services
Cisco VCS Administrator Guide (X7.2)
for more information.
Dial plan and call processing
Usage tips
This defaults to <reject status='403'
reason='Service Unavailable'/> but
you could change it, for example, to redirect
to an answer service or recorded message.
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