AT&T R1V2 ユーザーズマニュアル

During an administration session, there are occasions when you may enter inappropriate
information at a prompt. While System 25 does not catch all input errors, it does catch many
of them. System 25 has three means of responding to incorrect input:

■ 

Error messages

■ 

Print messages

■ 

Warnings

Error messages are in the general form:

[Where nnnn is a number]

[Where aaaaa aaaa is a message]

A second level of help is also available. If you need more information about an error
message in the form above, you can type a question mark, “?,” at the next prompt. You will
see a second message in the this general form:

[Where nnnn is a number]

[Where bbbbb bbbb is an expanded message]

Consider a specific example. You can only change a station PDC to a number that does not
already exist in the dial plan. Say that you attempt to change PDC 1654 to 1653 which is
being used elsewhere:

To change a station PDC

At the Main Menu prompt, enter 

to access the PDC

menu.

At 

enter the PDC you want to change, 

At 

enter 

to tell the system you want to enter

a new PDC.

Type 

and at 

enter the new dial code, 

If you see:

that station may already exist.

To request additional help on this error message, type 

You see the second level error message followed by a new
prompt:

The system continues to prompt for correct data.

2-10  How to Use the System