enum MtasCatUseHistoryInfoDT

Numeric Enumeration: 0-2 (0=DISABLE, 1=COPY, 2=UPDATE)

References from:
MtasCat;

0
DISABLE
History-Info header is not included in the INVITE to CAT Server
1
COPY
History-Info header in INVITE sent to CAT Server is copied from the initial INVITE (if present there).
2
UPDATE
History-Info header in INVITE sent to CAT Server is added (if not present in the initial INVITE) or updated.
  enum MtasCatUseHistoryInfoDT