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Call Server Configuration
Polycom, Inc. 276
History Retention Settings
The Polycom RealPresence DMA system is preconfigured with the number of history records of various
types to retain. When the retention limit for a record type is reached, the system purges a specific number
of the oldest records of that type.
The following table shows the retention limit for each record type and how many are purged at a time when
the retention limit is reached. The values specified are for each cluster, not the total for the entire
supercluster.
Contact Polycom Global Services if you want to discuss the possibility of changing the retention limits.
The History Retention Settings page lets you specify whether to retain registration history records, and if
so, whether to include registration keep-alive messages. You can also specify how many repeated
low-value signaling records to retain. The following table describes the fields on the page. Only users with
the Auditor role can access this page.
The settings on this page are supercluster-wide (the clusters aren’t independently configured).
To configure history record retention
1 Log into the system as a user with the Auditor role and go to Admin > Call Server > History
Retention Settings.
2 Specify whether to record registration history, and if so, whether to include keep-alive messages.
Record Type Retention Limit
Number of Records Purged
When Limit Is Reached
Registration history 505,000 5,000
Registration signaling 2,000,000 20,000
Call history 505,000 5,000
Call signaling history 12,625,000 125,000
Conference history 202,000 2,000
CDR export history 11,000 1,000
Field Description
Enable recording of
registration history
Enables the system to retain Call Server registration records (see Registration
History Report on page 407).
Include keep-alive messages
in registration history
If selected, the Call Server history includes the keep-alive messages sent by
registered endpoints and the Call Server’s responses.
Selecting this option significantly increases the number of Call Server registration
records per period of time.
Number of repeated low-value
signaling event records to
retain
The number of less-important signaling messages (such as INFO messages
about in-call status) to retain for a given call (from 0 to 10; default is 3).
Once the limit is reached, subsequent messages of that type are processed, but
not recorded in the call signaling history.