Removing an Allowed OPC Screen

This procedure is used to remove an allowed originating point code (OPC) screen from the database using the dlt-scr-opc command. The parameters used by the dlt-scr-opc command are shown in the Gateway Screening Attributes section. The general rules that apply to configuring gateway screening entities are shown in the Gateway Screening Configuration section.

The example in this procedure removes the allowed OPC screen gws4 from the database.

Note:

If you using multiple-part ITU national point codes with gateway screening, see the 14-Bit ITU National Point Code Formats section.

The allowed OPC screen can only be referenced by a screen set.

Enter the rtrv-scrset:nsfi=opc command to verify that none of the screen sets reference the allowed OPC screen being removed from the database.

To change the NSFI of any of the screen sets, perform the Changing a Screen Set procedure.

Display the allowed OPC screens in the database using the rtrv-scr-opc command.
The following is an example of the possible output.
```
rlghncxa03w 06-10-25 15:25:30 GMT EAGLE5 36.0.0
SCREEN = ALLOWED OPC

SR    REF  RULES
GWS4  YES     1
IEC   YES     6
ISP1  YES     1
TUP1  YES     1
WRD2  YES     1
WRD4  YES     9
```
From the rtrv-scr-opc output, display the allowed OPC screen you wish to remove using the rtrv-scr-opc command with the screening reference name. For this example, enter this command.

rtrv-scr-opc:sr=gws4

The following is an example of the possible output.
```
rlghncxa03w 06-10-25 15:25:30 GMT  EAGLE5 36.0.0
SCREEN = ALLOWED OPC
SR    NI       NC       NCM      NSFI    NSR/ACT
GWS4  001      001      001      BLKOPC  GWS7
```
Enter the rtrv-scrset:nsfi=opc command to verify that none of the screen sets reference the allowed OPC screen being removed from the database.

To change the NSFI of any of the screen sets, perform the Changing a Screen Set procedure.
Remove the allowed OPC screen from the database using the dlt-scr-opc command with the screening reference name shown in the rtrv-scr-opc output in step 1 and with the point code parameter values (ni, nc, ncm, or zone, area, id, or npc, or msa, ssa, sp) of the screen being removed from the database. The values for these parameters must be entered exactly as shown in the rtrv-scr-opc output.
To remove an entry containing either an ITU-I or a 14-bit ITU-N spare point code, the pcst=s parameter must be specified with the dlt-scr-opc command.

To remove an entry containing either an ITU-I or a 14-bit ITU-N non-spare point code, the pcst parameter does not have to be specified with the dlt-scr-opc command. If the pcst parameter is specified, the value must be none.

For this example, enter this command.

dlt-scr-opc:sr=gws4:ni=001:nc=001:ncm=001

A message similar to the following should appear.
```
rlghncxa03w 06-10-25 15:26:30 GMT  EAGLE5 36.0.0
DLT-SCR-OPC: SCREEN SET AFFECTED - GWS4  0% FULL
DLT-SCR-OPC: MASP A - COMPLTD
```
Verify the changes using the rtrv-scr-opc command with the screening reference name used in step 3.
For this example, enter this command.

rtrv-scr-opc:sr=gws4

The following is an example of the possible output.
```
E2573 Cmd Rej: SR or NSR does not reference an existing SR
```
This message shows that the specified screening reference name is not in the database and the action of the dlt-scr-opc command in step 3 was successful. If the specified screening reference name contained more than one entry when the dlt-scr-opc command was executed in step 3, the rtrv-scr-opc:sr= command output would show the remaining entries in the screening reference instead of error message E2573.

Backup the new changes using the chg-db:action=backup:dest=fixed command.

The following messages should appear, the active Maintenance and Administration Subsystem Processor (MASP) appears first.

BACKUP (FIXED) : MASP A - Backup starts on active MASP.
BACKUP (FIXED) : MASP A - Backup on active MASP to fixed disk complete.
BACKUP (FIXED) : MASP A - Backup starts on standby MASP.
BACKUP (FIXED) : MASP A - Backup on standby MASP to fixed disk complete.

Figure 12-10 Remove an Allowed OPC Screen