The NCID log rotation module is normally found in /usr/share/ncid/sys directory.
Ncidrotate is called by /etc/logrotate.d/ncid and will keep a number of lines in cidcall.log after rotation. The default is 0 lines kept. The configuration file for logrotate is /etc/ncid/ncidrotate.conf
logrotate ‐ rotates, compresses and mails system logs
ncidrotate.conf(5), rotatebysize.conf(5), ncidd(8)
ncidd(8), ncidrotate.conf(5), ncid-yearlog(1), rotatebysize.conf(5).