18.3. CCTN - Apply trunk number as A number 
Feature:
For example, signal A number, call data recording
Function:
In the case of an incoming line seizure, the parameter CCTN in the COT of an analog
trunk causes the immediate transfer of the call number set in the CCT field with the
AMO
TACSU to the A call number field of the connection memory. As a consequence, every
A number
that is transferred in an internal or external signal message contains either the
original
entry of the record number or an entry altered through a display modification.
For example, local or network-wide signaling of the A number for the B subscriber.
Signaling the calling party number for call data recording.
AMO Interrelationships:
TACSU ... <CCTN>
Device types:
Analog trunks