Please note, other products 
connected to the line are not 
compatible with this feature 
and will still ring.
You must subscribe to a Caller 
Display service from your 
network provider for the block 
nuisance calls feature to work. 
Charges may apply.
Blocked will be displayed with 
no backlight on the handset 
when a blocked call is received. 
The handset or base will  
not ring.
If you need some help, call us on 0800 145 6789* or go to bt.com/producthelp 
Quick set-up guide 9
6  Block nuisance calls
The BT6600 blocks numbers in two separate ways 
to help you avoid nuisance calls, firstly by type e.g 
withheld or international and also by your choice of 
specific numbers (you can store up to 100 numbers 
of your own choice).
1. Select Menu, scroll 
 
to Call Control and  
press Select.
2. Follow the instructions to set your PIN for the first 
time and select OK, (see page 55).
3. Incoming calls is displayed, press Select.
4. Press 
 to highlight Block calls and press 
Select. You now have 2 choices:
i) To block calls by type, when By call type is 
highlighted, press Select. Select Blocked or 
Allowed for each of the call types by highlighting 
each one using 
 
and  ,: International, 
Withheld number, No Caller ID and Payphone, 
then select Save.
ii) To block calls by a specific number, press 
 
to highlight By number and press Select. You will 
enter the blocked numbers list, press Options and