Siemens OPTIPOINT HIPATH 2000 - Manual (Page 60)

Step by Step
Making Calls – Convenience Functions
60
Trunk Flash
To activate ISDN-type services and features through the
network carrier’s analog trunks or those of other com-
munications platforms (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 1 .
or
qie
Enter the code.
o
Enter the service code and/or telephone number.
Program/Service
* 51=Trunk flash?
[1] ”Different Displays (HiPath 4000 Environment)” Æ Page 117