Siemens hicom 150 H optiset E standard Operating Instructions Manual page 27

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Program/Service
* 41=Temporary MSN?
Program/Service
* 51=Trunk flash?
When the reserved trunk becomes free:
Your telephone rings. The display shows " Trunk is free".
Lift the handset. You hear the CO dial tone.
Enter the number of the external station.
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If this function has been configured (contact System
Support), you can selectively assign a specific number
(DID number) to your telephone before making an exter-
nal call. The assigned number then appears on the
called party's display.
Press the key. The LED lights up.
Select and confirm.
or
Enter the code.
Enter the DID number you wish to use.
Dial the external number.
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To activate ISDN-type services and features through the
network carrier's analog trunks or those of other com-
munication systems (such as "consultation hold"), you
must send a signal to the trunks before dialing the ser-
vice code or telephone number.
Precondition: You have set up an external connection.
Press the key. The LED lights up.
Select and confirm.
or
Enter the code.
Enter the service code and/or telephone number.
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