Avaya Integral 3 / 5 FC1 - Manual (Page 86)

The functions Integral 5
86
Setting the handset
continued
Extended call display
You can set your telephone to display not only the caller’s number or name
but the number which they dialled.
This tells you whether the caller wants to speak to service or the workshop,
for example.
O K
Call up the status display.
O K
Menu Settings .
O K O K
Menu Call display A->B (off) .
O K
Activate the call display.