IUTx entry for IUT processing (Part 1)

Entry:
IUTC, IUTD, IUTF, IUTI, IUTM, IUTQ, IUTR, IUTS, or IUTX
VIT option:
CIA
Event:
IUT processing (Part 1)
VIT processing module:
ISTRACCI
Control is returned to:
Module invoking the INTRACE macroinstruction that caused the record to be produced.

This trace record is written when an IUT process occurs. All CM-to-CM traffic is traced. On other sessions, only signaling traffic is traced.