Conducting calls – enhanced functions
69
Step by Step
Sending a signal to the network
To enable ISDN-type services/features to be started via
analogue lines (for example, call waiting when a line is
busy, three-way conference calls, etc.), you must send
a signal to the network before dialling the service code
and/or phone number.
This function can also be called by entering the code
page 145.
p You have an external connection.
Open the system menu.
> < [Select the menu item and confirm.
> < [Select the menu item and confirm.
o Enter the service code and/or the phone number.
External call forwarding with a
multiple subscriber number
If your communications system is connected to an
ISDN multiple device line, then you can forward all
incoming calls from the public network through your
multiple subscriber number (MSN) to an external
destination.
There are three types of forwarding:
• Calls are forwarded immediately (1=immediate call
forwarding).
• Calls are forwarded after a certain time
(2=unanswered calls).
• Calls are only forwarded when the line is busy
(3=when busy).
Activating call forwarding to a "trunk"
c or d Press and hold the Talk or Speakerphone key.
Open the system menu.
> < [Select the menu item and confirm.
> < [Select the menu item and confirm.
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