BT BIG Button + - Manual (Page 16)

BIG Button + ~ 4th Edition ~ 15th April ’02 ~ 4380
15
6 Time Break Recall and Earth
Recall selection
The switch is found on the base of your phone.
Your phone will already be set to TB. If you are a
residential customer this will help you to use some Network
Services such as Call Waiting, as long as you subscribe to
this service.
If you are using your BIG Button + on a switchboard you
may need to move this switch to TE to transfer calls.
Call BT on Freefone 0800 800 150 for details.
Your BIG Button + is now ready for use.