10.11.5.3.1. Feature Description 
From EV 3.0, QSIG-compliant behavior was implemented for independent
display of numbers and names, i.e. now number and name can be independently
checked for "presentation allowed". In the PABX, the number and the respective
name of a confidential line (SSTNO=YES) are always designated as "presentation
restricted". For this reason, so far only the number was checked for
"presentation allowed". If the presentation of the number was permitted,
the name was also displayed and vice versa. If a station number is not
transmitted, either the defined string or the trunk group name is displayed
depending on the AMO ZAND setting.
- If the calling party and the called party are in the same system, the string that has been set with the parameter DISPNUUN=< string > is displayed regardless of how the parameter DISPTGNA was set with the AMO ZAND.
- If the calling party and the called party are in different systems, a distinction
must be made
between an OpenScape4000/HiPath 4000 to OpenScape4000/HiPath 4000 or a an
OpenScape4000/HiPath 4000 to Non OpenScape4000/HiPath 4000 connection.
The parameter DISPTGNA activates the display of the trunk group name in the event of incoming seizures if no name (e.g. no PERSI name in the case of a network-wide call) is provided in the protocol.
- OpenScape4000/HiPath 4000 to OpenScape4000/HiPath 4000 connection:
Case a: Parameter in the AMO ZAND: DISPTGNA= YESA check is made in the protocol for existing names. If the name field is blank (Length=0) and the display allowed ("presentation allowed"), the trunk group name is entered with "presentation allowed" (presentation permission), regardless of the parameter INDNADIS, and can no longer be subsequently overwritten in the network/system. If a name is provided, but is labelled as "presentation restricted", the name is not overwritten and remains declared as "presentation restricted".Case b:Parameter in the AMO ZAND: DISPTGNA=NONo check is made in the protocol for existing names. The string defined with the parameter DISPNUUN appears on the display of the called party's station.
- Connection with a third-party system (e.g. QSIG Protocol):
The parameter INDNADIS in the AMO ZAND serves to specify the check mechanisms regarding the presentation permission ("presentation allowed or restricted") More recent protocols recognize several variations of "confidential line": Via the parameter INDNADIS in the AMO ZAND, the name can be displayed on the display of the called party, regardless of caller ID suppression.Case a: Parameter in the AMO ZAND: INDNADIS=YESNumbers and names are checked for "presentation restricted" separately and can thus be displayed independently of one another.Furthermore, this setting also contains a check that compares the called numbers and returned numbers with one another: If the numbers are the same, the target number is also displayed, even if the display is not permitted (confidential).Case b: Parameter in AMO ZAND: INDNADIS=NEINOnly the calling number is checked for "presentation restricted" and the behavior for the name adopted, i.e. either the calling number and name are displayed in the case of "presentation allowed", or both are suppressed in the case of "presentation restricted". In this case, the string that is entered with the parameter DISPNUUN and/or the outgoing trunk group name in the case of DISPTGNA = YES for the called party can be displayed.
- OpenScape4000/HiPath 4000 to OpenScape4000/HiPath 4000 connection: