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74 Extra features
Hook flash
Hook flash is a signalling method in a telephone network or on a switchboard
and is initiated by pressing the
R key on the handset. It is normally used for
call transfer. Hook flash actually simulates an on-hook-off-hook sequence
during a call. The length of such a sequence can be adjusted. In most cases the
factory setting (default) is correct. You will find details in the appropriate
documentation.
It is important to set the hook flash duration correctly. If it is set too short or
too long the telephone network or the switchboard may not detect a hook flash
or may even end the call.
The hook flash duration is limited to a certain range. If you try to exceed the
range, the handset sounds a warning tone and defaults to the lower or upper
limit.
To set the hook flash signalling method:
Route:
BaseStation » Basic » PhoneLine
1. Select
Basic
and press YES.
PIN:
is displayed.
2. Enter the PIN code for the base station (see page 58) and press
YES.
3. Select
PhoneLine
and press YES.
The opposite of the current setting is displayed.
4. Scroll to either
GoToFlash
or
GoToEarth
. If the display shows:
•
GoToEarth
press NO because the base station is already set to hook flash
signalling.
•
GoToFlash
press YES to set the base station to hook flash signalling.
Flash Time:
and current duration in milliseconds are displayed.
5. Enter the required duration (
CLR = delete; UP = move left; DOWN = move
right). The last digit automatically defaults to
0
.
6. Press
YES to confirm.
Hook flash signalling and its duration are set.
Hook flash duration
If you use hook flash signalling, you may need to change the hook flash dura-
tion. To change this, you have to go back to earth signalling first and then
change the signalling method back to hook flash. See “Earth signalling” on
page 73 and “Hook flash” above for the corresponding procedures.