Using "Call Waiting" Service; Using As A Telephone - Sony IT-A2500 Operating Instructions Manual

Using "call waiting" service
' 1
it FLASH is pressed when there
When a new call comes in while you are talking, press
is no new incoming call, the call FLASH.
will be disconnected.
The current caller is put on hold and you can answer the new call.
2
When you want to switch back to the first caller, press
FLASH again.
Pressing FLASH lets you switch between the two calls.
Using as a telephone | ¢