(ARQ only) Inserts a WRU command (Who are you? -
request for identification) in your text. This command is
automatically followed by [OVER], so that the recipient can
answer back.
When the WRU command is sent, you cannot send any
more text until the direction is changed back to your side.
However, if you send more text while the WRU command is
waiting to be sent, the WRU is removed and replaced by
your new text.
In the Call settings window you can set up the system to
automatically send DE/WRU.
Inserts a BELL command (can make e.g. a buzzer sound at
the recipient).
Opens the Options menu, described in the next section.
Stops the communication link.
Button Function