AVT MAGIC TH2, Hardware Manual

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PAGE 32
O p e r a t i o n v i a D i s p l a y a n d K e y p a d
4.3.4 Sending DTMF tones (Option)
If the fee-based option DTMF is activated in your system (see CHAPTER 8),
you have the possibility to send DTMF tones on the one hand and, on the
other hand, you can analyse DTMF tones via the PC software (see
CHAPTER 8).
DTMF tones can be generated directly via the keypad of the system by press-
ing the numerical keys ’
0
’...’
9
’, ’
*
’, or ’
#
’ during a connection.
4.3.5 Locking of lines
To avoid further calls a caller line can be locked. A line can only be locked if
no connection exists. In this case the callers hear the Busy signal. Outgoing
calls are still possible if the switch respectively the Private Branch Exchange
(PBX) is not already busy
Please go to the status window by pressing the
Ok
button.
Now keep the key pressed for one second. The display changes for the
selected channel from
Disconnect
to
Locked
.
By pressing the key again, the selected B channel is unlocked.
NOTICE
Since the
Shift
key (’
#
’) is used for switching between the two B channels
(only in
ISDN
operating mode), it is necessary to keep the key pressed for 1 se-
cond to send the ’
#
’ DTMF tone.
NOTICE
The locking of Audio lines is only available in the operating modes
ISDN
or
ISDN Single Hybrid
.
NOTICE
If you are not in the main menu please press the key first.
NOTICE
To switch between the two B channels please use the
Shift
key (’
#
’).