AVT MAGIC TH2, Hardware Manual

Page: 43 / 130

PAGE 43
W i n d o w s P C S o f t w a r e
• Under
External prefix number
please enter the prefix number that you
need to get an external line. In most cases it is
0
.
• Some private branch exchanges transmit telephone numbers with prefix
number to the system. If you enable the function
Skip prefix number on
incoming call
, you can save a displayed number in the phone book with-
out prefix number since the prefix number of the displayed number is de-
leted automatically.
MSN (Multiple Subscriber Number)
Normally, a MSN entry is not required. However, if you operate further units
on your ISDN interface, you can allocate a certain number to a certain unit by
a MSN entry. When you order an ISDN user port in Germany, you usually re-
ceive three MSN, which you can use for your connected units.
Example: You operate a telephone, an ISDN PC card and a MAGIC TH2 sys-
tem using one ISDN interface. You received the following MSN from your
provider: 5271011, 5271012, 5271013.
If no MSN is allocated to the system, all three devices respond to an incoming
call no matter which of the three telephone numbers has been called. How-
ever, if a MSN is allocated to each device, the unit only responds if the corre-
sponding number is called. For instance, if you enter the MSN ’5271013’ for
the MAGIC TH2, the system only signalises an incoming call if the subscriber
has dialled the ’5271013’. This example, however, requires that you enter the
same MSN for
MSN 1
and
MSN 2
.
Please enter the desired MSN in
MSN 1
respectively
MSN 2
. Of course, you
can allocate the same MSN to both B channels. Please notice that a MSN is al-
ways entered without the area code.
In the operating mode
ISDN Single Hybrid
only
MSN 1
can be set.
Default Audio Line
• Via the function
Default Audio Line
you can select which Audio line is set
automatically after the connection has been dropped. The options are:
PRETALK
,
HOLD
or
ON AIR.
ATTENTION You need to enter the prefix number at any rate if you work with a private
branch exchange because otherwise the system does not wait for the free-line
signal. Without dialling the prefix number at a private branch extension the
telephone number is transmitted too fast and no connection can be estab-
lished.
NOTICE
A MSN can only be set if an ISDN operating mode is selected (see Page 41 -
General).
NOTICE
For some private branch exchanges the entry of a MSN is obligatory since
otherwise no operation is possible.
If you cannot establish a connection to a subscriber with the MAGIC TH2,
however, you are sure the ISDN is working correctly, please enter a MSN on
trial.
!