Settings
If you need some help, call us on 0800 145 6789* or go to bt.com/producthelp 
42
With First ring set to Off, an 
incoming external call will be 
displayed visually before the 
handset(s) start to ring for the 
second burst of ringing.
If you wish to revert to not 
using a PBX access code, you 
need to go into the PBX code 
menu and delete all the digits 
by selecting 
Clear, then select 
Save.
The default system PIN is 0000. 
You can change this to your 
own preferred 4-digit code.
The system PIN is used when 
changing certain settings and 
for registration/de-registration.
If you make a mistake, select 
Clear to delete a digit.
PBX access code
If you’re connected to a switchboard, you might need 
to enter an access code (e.g.9) before each number is 
dialled. Your BT4000 can store an access code which 
is automatically dialled before each number. 
Set a PBX access code
1. Select 
Menu, scroll   to display Settings and  
press 
OK.
2. Press 
 to display Base settings and press OK.
3. Press 
 to display PBX code and press OK. 
4. Enter the number you want (maximum of 4 digits) 
and select 
Save.
Change the system PIN
1. Select 
Menu, scroll   to display Settings and  
press 
OK.
2. Press 
 to display Change system PIN and  
press 
OK.
3. If the current PIN is 0000, you will be prompted 
to enter the new 4 digit PIN, then press 
OK. (Or, if 
the current PIN is not 0000, you will be prompted 
to enter the old (current) 4 digit PIN first and then 
select 
OK. Then follow the prompts and enter the 
new 4 digit PIN).
4. Enter the new 4 digit PIN again and select 
OK.  
The display will show 
New system PIN saved.
1662 BT4000 UG [3].indd   42 09/04/2013   15:03