5.24.1.1.7. ACPNAME (Additional Calling Party Name) 
The ACPNAME (PUBNAME) is configured in SDAT. This is the public name
to be sent out to the public network.
Within one OpenScape 4000 system, the LATTR PUBNAME in LDAT is the
trigger to send the PUBNAME instead of the PERSI name, for any type of
trunk, not only for CO.
There is no transport of PUBNAME information element via Cornet, therefore
the trigger to send the PUBNAME instead of the PERSI name is at the outgoing
point, where the first trunk is seized and call leaves OpenScape 4000
where PUBNAME is configured, even if this is not the break out point
(i.e. the last PBX before the public network). If PUBNAME is not set
as LATTR in LDAT, the PERSI name is sent.