Telephoning
Making External/Internal Calls
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Call Waiting with an Internal Subscriber
When you call an internal subscriber whose number is busy, your call will
appear on their display and signalled with the call waiting tone. You hear the
ringing tone yourself. The system administrator can determine that a special
ringing tone is used for call-waiting calls. Based on this special ringing tone,
you can decide whether you wish to end the connection or not.
If the subscriber called has activated call-waiting protection (see page 120)
you will hear the busy signal. You can penetrate a subscriber’s call-waiting
protection via a VIP call (see page 67).
Using Routes to Make Calls
The Forum 500 / Forum 5000 sets up calls to the desired subscribers either
automatically or via specific routes. Your system administrator configures
these routes in the Forum 500 / Forum 5000 and specifies how each route
is seized. To manually seize a specific route for a call, you dial the routing
code before dialling the (internal or external) call number. Making calls via
specific routes enables you to contact subscribers in the branches of a large
company network, for example. You can also use a manually-entered routing
code to record your call-charge data for private and business external calls
separately.
The
default route
“External line” is always present and cannot be deleted.
Automatic line seizure uses the Forum 500 / Forum 5000 line seizure code
digit for the default route.
For information on the current routes and their codes, please contact your
system administrator.
H Z
Enter the routing code and dial the call number.
For enquiry calls:
G R Z
Enter the routing code and dial the call number.