Polycom RMX 1500 Administrator's Manual page 868

Polycom RMX 1500/2000/4000 Getting Started Guide
Standard Event Record Fields
C-4
The event fields are separated by commas. Two consecutive commas with
nothing between them (,,), or a comma followed immediately by a semi-
colon (,;), indicates an empty field, as in the example below:
All event records start with the following fields:
• The CDR event type code. For a list of event type codes and
descriptions, refer to Table C-2, "CDR Event Types," on page C-5.
• The event date.
• The event time.
• The structure length. This field is required for compatibility
purposes, and always contains the value 0.