Phones that work with one another are called “gap Compatible
 

 

STEP 1

Put base into Register Mode;

Look at registering handsets for the base you want to add the handset to.

STEP 2

Put handset into register mode, see  manual for the handset you are adding

STEP 3

Enter Pin for the Base. 

--- You want the pin for the type of base you are adding a handset to.

 

If you think the pin code in your base has been changed, sometimes a reset will be necessary. See the individual manual. If you have a phone which can't be reset, we might be able to sell you one for less than £10; BaseRequest@htelephones.co.uk

 

 

Use the pin for the main base regardless of what handset you are adding.