3 call barring, 4 change master pin – ProForm ID555 User Manual
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Advanced settings
8.3
Call Barring
Call barring enables you to restrict 
selected handsets from dialling a phone 
number beginning with certain digits. 
You can set up to 4 different barring 
numbers, with each number containing 
up to 4 digits.
8.3.1
To activate/deactivate 
Call Barring
Press
M
in idle mode, scroll
:
to
ADVANCED SET
and
press
m
SELECT
, scroll
:
to
CALL BARRING
and press
m
SELECT
.
Enter the master PIN when 
prompted and press 
m
OK
to
confirm.
Note
By default, the master PIN is 0000.
Press
m
SELECT
to enter
MODE
.
Scroll
:
to
ON
or
OFF
and
press
m
SELECT
to confirm.
• A validation tone is emitted and
the screen returns to previous 
menu.
8.3.2
To modify Call Barring 
number
Press
M
in idle mode, scroll
:
to
ADVANCED SET
and
press
m
SELECT
, scroll
:
to
CALL BARRING
and press
m
SELECT
.
Enter the master PIN when 
prompted and press 
m
OK
to
confirm.
Note
By default, the master PIN is 0000.
Scroll
:
to
NUMBER
and press
m
SELECT
.
Scroll
:
to
NUMBER 1
,
NUMBER 2
,
NUMBER 3
or
NUMBER 4
and press
m
SELECT
.
Enter the barring number 
(maximum 4 digits) and press 
m
OK
to confirm.
• A validation tone is emitted and
the screen returns to previous 
menu.
Note
If a restricted number is dialled, the 
call will not be connected. When this 
happens, the phone emits an error 
tone and returns to idle mode. 
8.4
Change master PIN
The master PIN is used for setting call 
barring, registration/unregistration of 
handsets and for accessing the 
answering machine remotely. The 
default master PIN number is 0000. 
The maximum length of the master PIN 
is 4 digits. Your handset will prompt 
you whenever the PIN is required.
Note
The default PIN code is preset to 
0000. If you change this PIN code, 
keep the PIN details in a safe place 
where you have easy access to them. 
Do not lose the PIN code.
Press
M
in idle mode, scroll
:
to
ADVANCED SET
and
1
2
3
4
1
2
3
4
5
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ID555_IFU_GB.book Page 32 Friday, July 18, 2008 2:06 PM
