Sony ID Telephone IT-ID500 Manual De Instrucciones página 17

Using "call waiting" service
If you have subscribed to "call
waiting" service, you can
receive calls during
conversation. When a new call
comes in, you can put the
current call on hold and switch
to the new call.
If FLASH is pressed when there
is no new incoming call, the call
will be disconnected.
FLASH button
When a new call comes in while you are talking,
press FLASH.
The current caller is put on hold and you can answer the
new call.
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 | 1